更新index接入演示界面UI风格

.gitignore

@@ -17,7 +17,6 @@ target/
 
 ### NetBeans ###
 nbproject/private/
-build/
 nbbuild/
 dist/
 nbdist/
@@ -29,4 +28,3 @@ nbdist/
 
 server/src/main/cache/
 server/src/main/file/
-server/src/main/log

Dockerfile

@@ -28,5 +28,5 @@ ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
 ENV PATH $PATH:$JAVA_HOME/bin
 ENV LANG zh_CN.UTF-8
 ENV LC_ALL zh_CN.UTF-8
-ENV KKFILEVIEW_BIN_FOLDER /opt/kkFileView-2.2.1/bin
-ENTRYPOINT ["java","-Dfile.encoding=UTF-8","-Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider","-Dspring.config.location=/opt/kkFileView-2.2.1/config/application.properties","-jar","/opt/kkFileView-2.2.1/bin/kkFileView-2.2.1.jar"]
+ENV KKFILEVIEW_BIN_FOLDER /opt/kkFileView-3.3.0/bin
+ENTRYPOINT ["java","-Dfile.encoding=UTF-8","-Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider","-Dspring.config.location=/opt/kkFileView-3.3.0/config/application.properties","-jar","/opt/kkFileView-3.3.0/bin/kkFileView-3.3.0.jar"]

README.md

@@ -109,6 +109,26 @@ pdf预览模式预览效果如下
 
 ### 历史更新记录
 
+> 2020年12月27日 ：
+
+2020年年终大版本更新，架构全面设计，代码全面重构，代码质量全面提升，二次开发更便捷，欢迎拉源码品鉴，提issue、pr共同建设
+
+1. 架构模块调整,大量的代码重构，代码质量提升N个等级，欢迎品鉴
+2. 增强XML文件预览效果，新增XML文档数结构预览
+3. 新增markdown文件预览支持，预览支持md渲染和源文本切换支持
+4. 切换底层web server为jetty，解决这个issue：https://github.com/kekingcn/kkFileView/issues/168
+5. 引入cpdetector，解决文件编码识别问题
+6. url采用base64+urlencode双编码，彻底解决各种奇葩文件名预览问题
+7. 新增配置项office.preview.switch.disabled，控制offic文件预览切换开关
+8. 优化文本类型文件预览逻辑，采用Base64传输内容，避免预览时再次请求文件内容
+9. office预览图片模式禁用图片放大效果，达到图片和pdf预览效果一致的体验
+10. 直接代码静态设置pdfbox兼容低版本jdk，在IDEA中运行也不会有警告提示 
+11. 移除guava、hutool等非必须的工具包，减少代码体积
+12. Office组件加载异步化，提速应用启动速度最快到5秒内
+13. 合理设置预览消费队列的线程数
+14. 修复压缩包里文件再次预览失败的bug
+15. 修复图片预览的bug
+
 > 2020年05月20日 ：
 1. 新增支持全局水印，并支持通过参数动态改变水印内容
 2. 新增支持CAD文件预览

pom.xml

@@ -5,7 +5,7 @@
 
     <groupId>cn.keking</groupId>
     <artifactId>filepreview</artifactId>
-    <version>2.2.1</version>
+    <version>3.3.0</version>
     <modules>
         <module>office-plugin</module>
         <module>server</module>

server/pom.xml

@@ -12,7 +12,7 @@
 
     <groupId>cn.keking</groupId>
     <artifactId>kkFileView</artifactId>
-    <version>2.2.1</version>
+    <version>3.3.0</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -201,6 +201,12 @@
             <scope>system</scope>
             <systemPath>${basedir}/lib/cpdetector-1.04.jar</systemPath>
         </dependency>
+        <!-- url 规范化 -->
+        <dependency>
+            <groupId>io.mola.galimatias</groupId>
+            <artifactId>galimatias</artifactId>
+            <version>0.2.1</version>
+        </dependency>
     </dependencies>
     <build>
         <resources>

server/src/main/bin/startup.bat

@@ -6,4 +6,4 @@ echo Starting kkFileView...
 echo Please check log file in ../log/kkFileView.log for more information
 echo You can get help in our official homesite: https://kkFileView.keking.cn
 echo If this project is helpful to you, please star it on https://gitee.com/kekingcn/file-online-preview/stargazers
-java -Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider -Dspring.config.location=..\config\application.properties -jar kkFileView-2.2.1.jar -> ..\log\kkFileView.log
+java -Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider -Dspring.config.location=..\config\application.properties -jar kkFileView-3.3.0.jar -> ..\log\kkFileView.log

server/src/main/bin/startup.sh

@@ -29,4 +29,4 @@ echo "Starting kkFileView..."
 echo "Please execute ./showlog.sh to check log for more information"
 echo "You can get help in our official homesite: https://kkFileView.keking.cn"
 echo "If this project is helpful to you, please star it on https://gitee.com/kekingcn/file-online-preview/stargazers"
-nohup java -Dfile.encoding=UTF-8 -Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider -Dspring.config.location=../config/application.properties -jar kkFileView-2.2.1.jar > ../log/kkFileView.log 2>&1 &
+nohup java -Dfile.encoding=UTF-8 -Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider -Dspring.config.location=../config/application.properties -jar kkFileView-3.3.0.jar > ../log/kkFileView.log 2>&1 &

server/src/main/config/freemarker_implicit.ftl

@@ -1,5 +1,7 @@
 [#ftl]
 [#-- @implicitly included --]
+[#-- @ftlvariable name="fileTree" type="java.lang.String" --]
+[#-- @ftlvariable name="baseUrl" type="java.lang.String" --]
 [#-- @ftlvariable name="imgUrls" type="String" --]
 [#-- @ftlvariable name="textData" type="java.lang.String" --]
 [#-- @ftlvariable name="xmlContent" type="java.lang.String" --]

server/src/main/java/cn/keking/config/ConfigRefreshComponent.java

@@ -1,7 +1,5 @@
-package cn.keking.service;
+package cn.keking.config;
 
-import cn.keking.config.ConfigConstants;
-import cn.keking.config.WatermarkConfigConstants;
 import org.artofsolving.jodconverter.office.OfficeUtils;
 import org.artofsolving.jodconverter.util.ConfigUtils;
 import org.slf4j.Logger;
@@ -13,6 +11,7 @@ import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
 import java.util.Properties;
+import java.util.concurrent.TimeUnit;
 
 /**
  * @auther: chenjh
@@ -81,7 +80,7 @@ public class ConfigRefreshComponent {
                     setWatermarkConfig(properties);
                     bufferedReader.close();
                     fileReader.close();
-                    Thread.sleep(1000L);
+                    TimeUnit.SECONDS.sleep(1);
                 }
             } catch (IOException | InterruptedException e) {
                 LOGGER.error("读取配置文件异常", e);

server/src/main/java/cn/keking/config/SchedulerCleanConfig.java

@@ -1,7 +1,7 @@
-package cn.keking.utils;
+package cn.keking.config;
 
-import cn.keking.config.ConfigConstants;
 import cn.keking.service.cache.CacheService;
+import cn.keking.utils.FileUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
@@ -14,13 +14,13 @@ import org.springframework.stereotype.Component;
  */
 @Component
 @ConditionalOnExpression("'${cache.clean.enabled:false}'.equals('true')")
-public class ShedulerClean {
+public class SchedulerCleanConfig {
 
-    private final Logger logger = LoggerFactory.getLogger(ShedulerClean.class);
+    private final Logger logger = LoggerFactory.getLogger(SchedulerCleanConfig.class);
 
     private final CacheService cacheService;
 
-    public ShedulerClean(CacheService cacheService) {
+    public SchedulerCleanConfig(CacheService cacheService) {
         this.cacheService = cacheService;
     }
 

server/src/main/java/cn/keking/hutool/HexUtil.java

@@ -1,388 +0,0 @@
-package cn.keking.hutool;
-
-import java.awt.*;
-import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
-
-/**
- * 十六进制（简写为hex或下标16）在数学中是一种逢16进1的进位制，一般用数字0到9和字母A到F表示（其中:A~F即10~15）。<br>
- * 例如十进制数57，在二进制写作111001，在16进制写作39。<br>
- * 像java,c这样的语言为了区分十六进制和十进制数值,会在十六进制数的前面加上 0x,比如0x20是十进制的32,而不是十进制的20<br>
- * <p>
- * 参考：https://my.oschina.net/xinxingegeya/blog/287476
- *
- * @author Looly
- */
-public class HexUtil {
-
-	/**
-	 * 用于建立十六进制字符的输出的小写字符数组
-	 */
-	private static final char[] DIGITS_LOWER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
-	/**
-	 * 用于建立十六进制字符的输出的大写字符数组
-	 */
-	private static final char[] DIGITS_UPPER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-
-	/**
-	 * 判断给定字符串是否为16进制数<br>
-	 * 如果是，需要使用对应数字类型对象的<code>decode</code>方法解码<br>
-	 * 例如：{@code Integer.decode}方法解码int类型的16进制数字
-	 *
-	 * @param value 值
-	 * @return 是否为16进制
-	 */
-	public static boolean isHexNumber(String value) {
-		final int index = (value.startsWith("-") ? 1 : 0);
-		if (value.startsWith("0x", index) || value.startsWith("0X", index) || value.startsWith("#", index)) {
-			try {
-				Long.decode(value);
-			} catch (NumberFormatException e) {
-				return false;
-			}
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	// ---------------------------------------------------------------------------------------------------- encode
-
-	/**
-	 * 将字节数组转换为十六进制字符数组
-	 *
-	 * @param data byte[]
-	 * @return 十六进制char[]
-	 */
-	public static char[] encodeHex(byte[] data) {
-		return encodeHex(data, true);
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符数组
-	 *
-	 * @param str     字符串
-	 * @param charset 编码
-	 * @return 十六进制char[]
-	 */
-	public static char[] encodeHex(String str, Charset charset) {
-		return encodeHex(StrUtil.bytes(str, charset), true);
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符数组
-	 *
-	 * @param data        byte[]
-	 * @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
-	 * @return 十六进制char[]
-	 */
-	public static char[] encodeHex(byte[] data, boolean toLowerCase) {
-		return encodeHex(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符串
-	 *
-	 * @param data byte[]
-	 * @return 十六进制String
-	 */
-	public static String encodeHexStr(byte[] data) {
-		return encodeHexStr(data, true);
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符串，结果为小写
-	 *
-	 * @param data    被编码的字符串
-	 * @param charset 编码
-	 * @return 十六进制String
-	 */
-	public static String encodeHexStr(String data, Charset charset) {
-		return encodeHexStr(StrUtil.bytes(data, charset), true);
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符串，结果为小写，默认编码是UTF-8
-	 *
-	 * @param data 被编码的字符串
-	 * @return 十六进制String
-	 */
-	public static String encodeHexStr(String data) {
-		return encodeHexStr(data, StandardCharsets.UTF_8);
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符串
-	 *
-	 * @param data        byte[]
-	 * @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
-	 * @return 十六进制String
-	 */
-	public static String encodeHexStr(byte[] data, boolean toLowerCase) {
-		return encodeHexStr(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
-	}
-
-	// ---------------------------------------------------------------------------------------------------- decode
-
-	/**
-	 * 将十六进制字符数组转换为字符串，默认编码UTF-8
-	 *
-	 * @param hexStr 十六进制String
-	 * @return 字符串
-	 */
-	public static String decodeHexStr(String hexStr) {
-		return decodeHexStr(hexStr, StandardCharsets.UTF_8);
-	}
-
-	/**
-	 * 将十六进制字符数组转换为字符串
-	 *
-	 * @param hexStr  十六进制String
-	 * @param charset 编码
-	 * @return 字符串
-	 */
-	public static String decodeHexStr(String hexStr, Charset charset) {
-		if (StrUtil.isEmpty(hexStr)) {
-			return hexStr;
-		}
-		return decodeHexStr(hexStr.toCharArray(), charset);
-	}
-
-	/**
-	 * 将十六进制字符数组转换为字符串
-	 *
-	 * @param hexData 十六进制char[]
-	 * @param charset 编码
-	 * @return 字符串
-	 */
-	public static String decodeHexStr(char[] hexData, Charset charset) {
-		return StrUtil.str(decodeHex(hexData), charset);
-	}
-
-	/**
-	 * 将十六进制字符数组转换为字节数组
-	 *
-	 * @param hexData 十六进制char[]
-	 * @return byte[]
-	 * @throws RuntimeException 如果源十六进制字符数组是一个奇怪的长度，将抛出运行时异常
-	 */
-	public static byte[] decodeHex(char[] hexData) {
-
-		int len = hexData.length;
-
-		if ((len & 0x01) != 0) {
-			throw new RuntimeException("Odd number of characters.");
-		}
-
-		byte[] out = new byte[len >> 1];
-
-		// two characters form the hex value.
-		for (int i = 0, j = 0; j < len; i++) {
-			int f = toDigit(hexData[j], j) << 4;
-			j++;
-			f = f | toDigit(hexData[j], j);
-			j++;
-			out[i] = (byte) (f & 0xFF);
-		}
-
-		return out;
-	}
-
-	/**
-	 * 将十六进制字符串解码为byte[]
-	 *
-	 * @param hexStr 十六进制String
-	 * @return byte[]
-	 */
-	public static byte[] decodeHex(String hexStr) {
-		if (StrUtil.isEmpty(hexStr)) {
-			return null;
-		}
-		return decodeHex(hexStr.toCharArray());
-	}
-
-	// ---------------------------------------------------------------------------------------- Color
-
-	/**
-	 * 将{@link Color}编码为Hex形式
-	 *
-	 * @param color {@link Color}
-	 * @return Hex字符串
-	 * @since 3.0.8
-	 */
-	public static String encodeColor(Color color) {
-		return encodeColor(color, "#");
-	}
-
-	/**
-	 * 将{@link Color}编码为Hex形式
-	 *
-	 * @param color  {@link Color}
-	 * @param prefix 前缀字符串，可以是#、0x等
-	 * @return Hex字符串
-	 * @since 3.0.8
-	 */
-	public static String encodeColor(Color color, String prefix) {
-		final StringBuilder builder = new StringBuilder(prefix);
-		String colorHex;
-		colorHex = Integer.toHexString(color.getRed());
-		if (1 == colorHex.length()) {
-			builder.append('0');
-		}
-		builder.append(colorHex);
-		colorHex = Integer.toHexString(color.getGreen());
-		if (1 == colorHex.length()) {
-			builder.append('0');
-		}
-		builder.append(colorHex);
-		colorHex = Integer.toHexString(color.getBlue());
-		if (1 == colorHex.length()) {
-			builder.append('0');
-		}
-		builder.append(colorHex);
-		return builder.toString();
-	}
-
-	/**
-	 * 将Hex颜色值转为
-	 *
-	 * @param hexColor 16进制颜色值，可以以#开头，也可以用0x开头
-	 * @return {@link Color}
-	 * @since 3.0.8
-	 */
-	public static Color decodeColor(String hexColor) {
-		return Color.decode(hexColor);
-	}
-
-	/**
-	 * 将指定int值转换为Unicode字符串形式，常用于特殊字符（例如汉字）转Unicode形式<br>
-	 * 转换的字符串如果u后不足4位，则前面用0填充，例如：
-	 *
-	 * <pre>
-	 * '我' =》\u4f60
-	 * </pre>
-	 *
-	 * @param value int值，也可以是char
-	 * @return Unicode表现形式
-	 */
-	public static String toUnicodeHex(int value) {
-		final StringBuilder builder = new StringBuilder(6);
-
-		builder.append("\\u");
-		String hex = toHex(value);
-		int len = hex.length();
-		if (len < 4) {
-			builder.append("0000", 0, 4 - len);// 不足4位补0
-		}
-		builder.append(hex);
-
-		return builder.toString();
-	}
-
-	/**
-	 * 将指定char值转换为Unicode字符串形式，常用于特殊字符（例如汉字）转Unicode形式<br>
-	 * 转换的字符串如果u后不足4位，则前面用0填充，例如：
-	 *
-	 * <pre>
-	 * '我' =》\u4f60
-	 * </pre>
-	 *
-	 * @param ch char值
-	 * @return Unicode表现形式
-	 * @since 4.0.1
-	 */
-	public static String toUnicodeHex(char ch) {
-		return "\\u" +//
-				DIGITS_LOWER[(ch >> 12) & 15] +//
-				DIGITS_LOWER[(ch >> 8) & 15] +//
-				DIGITS_LOWER[(ch >> 4) & 15] +//
-				DIGITS_LOWER[(ch) & 15];
-	}
-
-	/**
-	 * 转为16进制字符串
-	 *
-	 * @param value int值
-	 * @return 16进制字符串
-	 * @since 4.4.1
-	 */
-	public static String toHex(int value) {
-		return Integer.toHexString(value);
-	}
-
-	/**
-	 * 转为16进制字符串
-	 *
-	 * @param value int值
-	 * @return 16进制字符串
-	 * @since 4.4.1
-	 */
-	public static String toHex(long value) {
-		return Long.toHexString(value);
-	}
-
-	/**
-	 * 将byte值转为16进制并添加到{@link StringBuilder}中
-	 *
-	 * @param builder     {@link StringBuilder}
-	 * @param b           byte
-	 * @param toLowerCase 是否使用小写
-	 * @since 4.4.1
-	 */
-	public static void appendHex(StringBuilder builder, byte b, boolean toLowerCase) {
-		final char[] toDigits = toLowerCase ? DIGITS_LOWER : DIGITS_UPPER;
-
-		int high = (b & 0xf0) >>> 4;//高位
-		int low = b & 0x0f;//低位
-		builder.append(toDigits[high]);
-		builder.append(toDigits[low]);
-	}
-
-	// ---------------------------------------------------------------------------------------- Private method start
-
-	/**
-	 * 将字节数组转换为十六进制字符串
-	 *
-	 * @param data     byte[]
-	 * @param toDigits 用于控制输出的char[]
-	 * @return 十六进制String
-	 */
-	private static String encodeHexStr(byte[] data, char[] toDigits) {
-		return new String(encodeHex(data, toDigits));
-	}
-
-	/**
-	 * 将字节数组转换为十六进制字符数组
-	 *
-	 * @param data     byte[]
-	 * @param toDigits 用于控制输出的char[]
-	 * @return 十六进制char[]
-	 */
-	private static char[] encodeHex(byte[] data, char[] toDigits) {
-		final int len = data.length;
-		final char[] out = new char[len << 1];//len*2
-		// two characters from the hex value.
-		for (int i = 0, j = 0; i < len; i++) {
-			out[j++] = toDigits[(0xF0 & data[i]) >>> 4];// 高位
-			out[j++] = toDigits[0x0F & data[i]];// 低位
-		}
-		return out;
-	}
-
-	/**
-	 * 将十六进制字符转换成一个整数
-	 *
-	 * @param ch    十六进制char
-	 * @param index 十六进制字符在字符数组中的位置
-	 * @return 一个整数
-	 * @throws RuntimeException 当ch不是一个合法的十六进制字符时，抛出运行时异常
-	 */
-	private static int toDigit(char ch, int index) {
-		int digit = Character.digit(ch, 16);
-		if (digit == -1) {
-			throw new RuntimeException("Illegal hexadecimal character " + ch + " at index " + index);
-		}
-		return digit;
-	}
-	// ---------------------------------------------------------------------------------------- Private method end
-}

server/src/main/java/cn/keking/hutool/StrUtil.java

@@ -1,283 +0,0 @@
-package cn.keking.hutool;
-
-import java.nio.charset.Charset;
-
-/**
- * 字符串工具类
- * 
- * @author xiaoleilu
- *
- */
-public class StrUtil {
-
-	public static final String EMPTY = "";
-
-	/**
-	 * 是否空白符<br>
-	 * 空白符包括空格、制表符、全角空格和不间断空格<br>
-	 *
-	 * @see Character#isWhitespace(int)
-	 * @see Character#isSpaceChar(int)
-	 * @param c 字符
-	 * @return 是否空白符
-	 * @since 4.0.10
-	 */
-	public static boolean isBlankChar(int c) {
-		return Character.isWhitespace(c) || Character.isSpaceChar(c) || c == '\ufeff' || c == '\u202a';
-	}
-
-	/**
-	 * 是否空白符<br>
-	 * 空白符包括空格、制表符、全角空格和不间断空格<br>
-	 *
-	 * @param c 字符
-	 * @return 是否空白符
-	 * @see Character#isWhitespace(int)
-	 * @see Character#isSpaceChar(int)
-	 * @since 4.0.10
-	 */
-	public static boolean isBlankChar(char c) {
-		return isBlankChar((int) c);
-	}
-
-	/**
-	 * 字符串是否为空白 空白的定义如下： <br>
-	 * 1、为null <br>
-	 * 2、为不可见字符（如空格）<br>
-	 * 3、""<br>
-	 *
-	 * @param str 被检测的字符串
-	 * @return 是否为空
-	 */
-	public static boolean isBlank(CharSequence str) {
-		int length;
-
-		if ((str == null) || ((length = str.length()) == 0)) {
-			return true;
-		}
-
-		for (int i = 0; i < length; i++) {
-			// 只要有一个非空字符即为非空字符串
-			if (false == isBlankChar(str.charAt(i))) {
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * 字符串是否为空，空的定义如下:<br>
-	 * 1、为null <br>
-	 * 2、为""<br>
-	 * 
-	 * @param str 被检测的字符串
-	 * @return 是否为空
-	 */
-	public static boolean isEmpty(CharSequence str) {
-		return str == null || str.length() == 0;
-	}
-
-	/**
-	 * 编码字符串
-	 *
-	 * @param str 字符串
-	 * @param charset 字符集，如果此字段为空，则解码的结果取决于平台
-	 * @return 编码后的字节码
-	 */
-	public static byte[] bytes(CharSequence str, Charset charset) {
-		if (str == null) {
-			return null;
-		}
-
-		if (null == charset) {
-			return str.toString().getBytes();
-		}
-		return str.toString().getBytes(charset);
-	}
-
-	/**
-	 * {@link CharSequence} 转为字符串，null安全
-	 *
-	 * @param cs {@link CharSequence}
-	 * @return 字符串
-	 */
-	public static String str(CharSequence cs) {
-		return null == cs ? null : cs.toString();
-	}
-
-	/**
-	 * 解码字节码
-	 *
-	 * @param data 字符串
-	 * @param charset 字符集，如果此字段为空，则解码的结果取决于平台
-	 * @return 解码后的字符串
-	 */
-	public static String str(byte[] data, Charset charset) {
-		if (data == null) {
-			return null;
-		}
-
-		if (null == charset) {
-			return new String(data);
-		}
-		return new String(data, charset);
-	}
-
-	/**
-	 * 改进JDK subString<br>
-	 * index从0开始计算，最后一个字符为-1<br>
-	 * 如果from和to位置一样，返回 "" <br>
-	 * 如果from或to为负数，则按照length从后向前数位置，如果绝对值大于字符串长度，则from归到0，to归到length<br>
-	 * 如果经过修正的index中from大于to，则互换from和to example: <br>
-	 * abcdefgh 2 3 =》 c <br>
-	 * abcdefgh 2 -3 =》 cde <br>
-	 *
-	 * @param str String
-	 * @param fromIndex 开始的index（包括）
-	 * @param toIndex 结束的index（不包括）
-	 * @return 字串
-	 */
-	public static String sub(CharSequence str, int fromIndex, int toIndex) {
-		if (isEmpty(str)) {
-			return str(str);
-		}
-		int len = str.length();
-
-		if (fromIndex < 0) {
-			fromIndex = len + fromIndex;
-			if (fromIndex < 0) {
-				fromIndex = 0;
-			}
-		} else if (fromIndex > len) {
-			fromIndex = len;
-		}
-
-		if (toIndex < 0) {
-			toIndex = len + toIndex;
-			if (toIndex < 0) {
-				toIndex = len;
-			}
-		} else if (toIndex > len) {
-			toIndex = len;
-		}
-
-		if (toIndex < fromIndex) {
-			int tmp = fromIndex;
-			fromIndex = toIndex;
-			toIndex = tmp;
-		}
-
-		if (fromIndex == toIndex) {
-			return EMPTY;
-		}
-
-		return str.toString().substring(fromIndex, toIndex);
-	}
-
-	/**
-	 * 切割指定位置之前部分的字符串
-	 *
-	 * @param string 字符串
-	 * @param toIndex 切割到的位置（不包括）
-	 * @return 切割后的剩余的前半部分字符串
-	 */
-	public static String subPre(CharSequence string, int toIndex) {
-		return sub(string, 0, toIndex);
-	}
-
-	/**
-	 * 切割指定位置之后部分的字符串
-	 *
-	 * @param string 字符串
-	 * @param fromIndex 切割开始的位置（包括）
-	 * @return 切割后后剩余的后半部分字符串
-	 */
-	public static String subSuf(CharSequence string, int fromIndex) {
-		if (isEmpty(string)) {
-			return null;
-		}
-		return sub(string, fromIndex, string.length());
-	}
-
-	/**
-	 * 指定范围内查找指定字符
-	 *
-	 * @param str 字符串
-	 * @param searchChar 被查找的字符
-	 * @param start 起始位置，如果小于0，从0开始查找
-	 * @param end 终止位置，如果超过str.length()则默认查找到字符串末尾
-	 * @return 位置
-	 */
-	public static int indexOf(final CharSequence str, char searchChar, int start, int end) {
-		final int len = str.length();
-		if (start < 0 || start > len) {
-			start = 0;
-		}
-		if (end > len || end < 0) {
-			end = len;
-		}
-		for (int i = start; i < end; i++) {
-			if (str.charAt(i) == searchChar) {
-				return i;
-			}
-		}
-		return -1;
-	}
-
-	/**
-	 * 指定范围内查找指定字符
-	 *
-	 * @param str 字符串
-	 * @param searchChar 被查找的字符
-	 * @param start 起始位置，如果小于0，从0开始查找
-	 * @return 位置
-	 */
-	public static int indexOf(final CharSequence str, char searchChar, int start) {
-		if (str instanceof String) {
-			return ((String) str).indexOf(searchChar, start);
-		} else {
-			return indexOf(str, searchChar, start, -1);
-		}
-	}
-
-	/**
-	 * 指定范围内查找指定字符
-	 *
-	 * @param str 字符串
-	 * @param searchChar 被查找的字符
-	 * @return 位置
-	 */
-	public static int indexOf(final CharSequence str, char searchChar) {
-		return indexOf(str, searchChar, 0);
-	}
-
-	/**
-	 * 如果字符串是<code>null</code>，则返回指定默认字符串，否则返回字符串本身。
-	 *
-	 * <pre>
-	 * nullToDefault(null, &quot;default&quot;)  = &quot;default&quot;
-	 * nullToDefault(&quot;&quot;, &quot;default&quot;)    = &quot;&quot;
-	 * nullToDefault(&quot;  &quot;, &quot;default&quot;)  = &quot;  &quot;
-	 * nullToDefault(&quot;bat&quot;, &quot;default&quot;) = &quot;bat&quot;
-	 * </pre>
-	 *
-	 * @param str 要转换的字符串
-	 * @param defaultStr 默认字符串
-	 *
-	 * @return 字符串本身或指定的默认字符串
-	 */
-	public static String nullToDefault(CharSequence str, String defaultStr) {
-		return (str == null) ? defaultStr : str.toString();
-	}
-
-	/**
-	 * 当给定字符串为null时，转换为Empty
-	 *
-	 * @param str 被转换的字符串
-	 * @return 转换后的字符串
-	 */
-	public static String nullToEmpty(CharSequence str) {
-		return nullToDefault(str, EMPTY);
-	}
-}

server/src/main/java/cn/keking/hutool/URLEncoder.java

@@ -1,232 +0,0 @@
-package cn.keking.hutool;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.OutputStreamWriter;
-import java.io.Serializable;
-import java.nio.charset.Charset;
-import java.util.BitSet;
-
-/**
- * URL编码，数据内容的类型是 application/x-www-form-urlencoded。
- * 
- * <pre>
- * 1.字符"a"-"z"，"A"-"Z"，"0"-"9"，"."，"-"，"*"，和"_" 都不会被编码;
- * 2.将空格转换为%20 ;
- * 3.将非文本内容转换成"%xy"的形式,xy是两位16进制的数值;
- * 4.在每个 name=value 对之间放置 &amp; 符号。
- * </pre>
- * 
- * @author looly,
- *
- */
-public class URLEncoder implements Serializable{
-	private static final long serialVersionUID = 1L;
-
-	// --------------------------------------------------------------------------------------------- Static method start
-	/**
-	 * 默认{@link URLEncoder}<br>
-	 * 默认的编码器针对URI路径编码，定义如下：
-	 * 
-	 * <pre>
-	 * pchar = unreserved（不处理） / pct-encoded / sub-delims（子分隔符） / ":" / "@"
-	 * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
-	 * sub-delims = "!" / "$" / "&amp;" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
-	 * </pre>
-	 */
-	public static final URLEncoder DEFAULT = createDefault();
-	
-	/**
-	 * 用于查询语句的{@link URLEncoder}<br>
-	 * 编码器针对URI路径编码，定义如下：
-	 * 
-	 * <pre>
-	 * 0x20 ' ' =》 '+' 
-	 * 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, 0x5F, 0x61 to 0x7A as-is 
-	 * '*', '-', '.', '0' to '9', 'A' to 'Z', '_', 'a' to 'z' Also '=' and '&amp;' 不编码
-	 * 其它编码为 %nn 形式
-	 * </pre>
-	 * 
-	 * 详细见：https://www.w3.org/TR/html5/forms.html#application/x-www-form-urlencoded-encoding-algorithm
-	 */
-	public static final URLEncoder QUERY = createQuery();
-
-	/**
-	 * 创建默认{@link URLEncoder}<br>
-	 * 默认的编码器针对URI路径编码，定义如下：
-	 * 
-	 * <pre>
-	 * pchar = unreserved（不处理） / pct-encoded / sub-delims（子分隔符） / ":" / "@"
-	 * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
-	 * sub-delims = "!" / "$" / "&amp;" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
-	 * </pre>
-	 * 
-	 * @return {@link URLEncoder}
-	 */
-	public static URLEncoder createDefault() {
-		final URLEncoder encoder = new URLEncoder();
-		encoder.addSafeCharacter('-');
-		encoder.addSafeCharacter('.');
-		encoder.addSafeCharacter('_');
-		encoder.addSafeCharacter('~');
-		// Add the sub-delims
-		encoder.addSafeCharacter('!');
-		encoder.addSafeCharacter('$');
-		encoder.addSafeCharacter('&');
-		encoder.addSafeCharacter('\'');
-		encoder.addSafeCharacter('(');
-		encoder.addSafeCharacter(')');
-		encoder.addSafeCharacter('*');
-		encoder.addSafeCharacter('+');
-		encoder.addSafeCharacter(',');
-		encoder.addSafeCharacter(';');
-		encoder.addSafeCharacter('=');
-		// Add the remaining literals
-		encoder.addSafeCharacter(':');
-		encoder.addSafeCharacter('@');
-		// Add '/' so it isn't encoded when we encode a path
-		encoder.addSafeCharacter('/');
-
-		return encoder;
-	}
-
-	/**
-	 * 创建用于查询语句的{@link URLEncoder}<br>
-	 * 编码器针对URI路径编码，定义如下：
-	 * 
-	 * <pre>
-	 * 0x20 ' ' =》 '+' 
-	 * 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, 0x5F, 0x61 to 0x7A as-is 
-	 * '*', '-', '.', '0' to '9', 'A' to 'Z', '_', 'a' to 'z' Also '=' and '&amp;' 不编码
-	 * 其它编码为 %nn 形式
-	 * </pre>
-	 * 
-	 * 详细见：https://www.w3.org/TR/html5/forms.html#application/x-www-form-urlencoded-encoding-algorithm
-	 * 
-	 * @return {@link URLEncoder}
-	 */
-	public static URLEncoder createQuery() {
-		final URLEncoder encoder = new URLEncoder();
-		// Special encoding for space
-		encoder.setEncodeSpaceAsPlus(true);
-		// Alpha and digit are safe by default
-		// Add the other permitted characters
-		encoder.addSafeCharacter('*');
-		encoder.addSafeCharacter('-');
-		encoder.addSafeCharacter('.');
-		encoder.addSafeCharacter('_');
-		encoder.addSafeCharacter('=');
-		encoder.addSafeCharacter('&');
-
-		return encoder;
-	}
-	// --------------------------------------------------------------------------------------------- Static method end
-
-	/** 存放安全编码 */
-	private final BitSet safeCharacters;
-	/** 是否编码空格为+ */
-	private boolean encodeSpaceAsPlus = false;
-
-	/**
-	 * 构造<br>
-	 * 
-	 * [a-zA-Z0-9]默认不被编码
-	 */
-	public URLEncoder() {
-		this(new BitSet(256));
-
-		for (char i = 'a'; i <= 'z'; i++) {
-			addSafeCharacter(i);
-		}
-		for (char i = 'A'; i <= 'Z'; i++) {
-			addSafeCharacter(i);
-		}
-		for (char i = '0'; i <= '9'; i++) {
-			addSafeCharacter(i);
-		}
-	}
-
-	/**
-	 * 构造
-	 * 
-	 * @param safeCharacters 安全字符，安全字符不被编码
-	 */
-	private URLEncoder(BitSet safeCharacters) {
-		this.safeCharacters = safeCharacters;
-	}
-
-	/**
-	 * 增加安全字符<br>
-	 * 安全字符不被编码
-	 * 
-	 * @param c 字符
-	 */
-	public void addSafeCharacter(char c) {
-		safeCharacters.set(c);
-	}
-
-	/**
-	 * 移除安全字符<br>
-	 * 安全字符不被编码
-	 * 
-	 * @param c 字符
-	 */
-	public void removeSafeCharacter(char c) {
-		safeCharacters.clear(c);
-	}
-
-	/**
-	 * 是否将空格编码为+
-	 * 
-	 * @param encodeSpaceAsPlus 是否将空格编码为+
-	 */
-	public void setEncodeSpaceAsPlus(boolean encodeSpaceAsPlus) {
-		this.encodeSpaceAsPlus = encodeSpaceAsPlus;
-	}
-
-	/**
-	 * 将URL中的字符串编码为%形式
-	 *
-	 * @param path 需要编码的字符串
-	 * @param charset 编码
-	 *
-	 * @return 编码后的字符串
-	 */
-	public String encode(String path, Charset charset) {
-
-		int maxBytesPerChar = 10;
-		final StringBuilder rewrittenPath = new StringBuilder(path.length());
-		ByteArrayOutputStream buf = new ByteArrayOutputStream(maxBytesPerChar);
-		OutputStreamWriter writer = new OutputStreamWriter(buf, charset);
-
-		int c;
-		for (int i = 0; i < path.length(); i++) {
-			c = path.charAt(i);
-			if (safeCharacters.get(c)) {
-				rewrittenPath.append((char) c);
-			} else if (encodeSpaceAsPlus && c == ' ') {
-				// 对于空格单独处理
-				rewrittenPath.append('+');
-			} else {
-				// convert to external encoding before hex conversion
-				try {
-					writer.write((char) c);
-					writer.flush();
-				} catch (IOException e) {
-					buf.reset();
-					continue;
-				}
-
-				byte[] ba = buf.toByteArray();
-				for (int j = 0; j < ba.length; j++) {
-					// Converting each byte in the buffer
-					byte toEncode = ba[j];
-					rewrittenPath.append('%');
-					HexUtil.appendHex(rewrittenPath, toEncode, false);
-				}
-				buf.reset();
-			}
-		}
-		return rewrittenPath.toString();
-	}
-}

server/src/main/java/cn/keking/hutool/URLUtil.java

@@ -1,74 +0,0 @@
-package cn.keking.hutool;
-
-import java.nio.charset.StandardCharsets;
-
-/**
- * 统一资源定位符相关工具类
- *
- * @author xiaoleilu
- *
- */
-public class URLUtil {
-
-	/**
-	 * 标准化URL字符串，包括：
-	 *
-	 * <pre>
-	 * 1. 多个/替换为一个
-	 * </pre>
-	 *
-	 * @param url URL字符串
-	 * @return 标准化后的URL字符串
-	 */
-	public static String normalize(String url) {
-		return normalize(url, false, false);
-	}
-
-	/**
-	 * 标准化URL字符串，包括：
-	 *
-	 * <pre>
-	 * 1. 多个/替换为一个
-	 * </pre>
-	 *
-	 * @param url URL字符串
-	 * @param isEncodeBody 是否对URL中body部分的中文和特殊字符做转义（不包括http:和/）
-	 * @param isEncodeParam 是否对URL中参数部分的中文和特殊字符做转义
-	 * @return 标准化后的URL字符串
-	 * @since 4.4.1
-	 */
-	public static String normalize(String url, boolean isEncodeBody, boolean isEncodeParam) {
-		if (StrUtil.isBlank(url)) {
-			return url;
-		}
-		final int sepIndex = url.indexOf("://");
-		String pre;
-		String body;
-		if (sepIndex > 0) {
-			pre = StrUtil.subPre(url, sepIndex + 3);
-			body = StrUtil.subSuf(url, sepIndex + 3);
-		} else {
-			pre = "http://";
-			body = url;
-		}
-
-		final int paramsSepIndex = StrUtil.indexOf(body, '?');
-		String params = null;
-		if (paramsSepIndex > 0) {
-			params = StrUtil.subSuf(body, paramsSepIndex + 1);
-			body = StrUtil.subPre(body, paramsSepIndex);
-		}
-
-		// 去除开头的\或者/
-		body = body.replaceAll("^[\\\\/]+", StrUtil.EMPTY);
-		// 替换多个\或/为单个/
-		body = body.replace("\\", "/").replaceAll("//+", "/");
-		if (isEncodeBody) {
-			body = URLEncoder.DEFAULT.encode(body, StandardCharsets.UTF_8);
-			if (params != null) {
-				params = "?" + URLEncoder.DEFAULT.encode(params, StandardCharsets.UTF_8);
-			}
-		}
-		return pre + body + StrUtil.nullToEmpty(params);
-	}
-}

server/src/main/java/cn/keking/model/FileType.java

@@ -10,6 +10,7 @@ import java.util.Map;
  * Content :文件类型，文本，office，压缩包等等
  */
 public enum FileType {
+
     picture("pictureFilePreviewImpl"),
     compress("compressFilePreviewImpl"),
     office("officeFilePreviewImpl"),
@@ -19,12 +20,13 @@ public enum FileType {
     media("mediaFilePreviewImpl"),
     markdown("markdownFilePreviewImpl"),
     xml("xmlFilePreviewImpl"),
+    flv("flvFilePreviewImpl"),
     cad("cadFilePreviewImpl");
 
     private static final String[] OFFICE_TYPES = {"docx", "doc", "xls", "xlsx", "ppt", "pptx"};
     private static final String[] PICTURE_TYPES = {"jpg", "jpeg", "png", "gif", "bmp", "ico", "RAW"};
     private static final String[] ARCHIVE_TYPES = {"rar", "zip", "jar", "7-zip", "tar", "gzip", "7z"};
-    private static final String[] SIMTEXT_TYPES = ConfigConstants.getSimText();
+    private static final String[] SSIM_TEXT_TYPES = ConfigConstants.getSimText();
     private static final String[] MEDIA_TYPES = ConfigConstants.getMedia();
     private static final Map<String, FileType> FILE_TYPE_MAPPER = new HashMap<>();
 
@@ -38,7 +40,7 @@ public enum FileType {
         for (String archive : ARCHIVE_TYPES) {
             FILE_TYPE_MAPPER.put(archive, FileType.compress);
         }
-        for (String text : SIMTEXT_TYPES) {
+        for (String text : SSIM_TEXT_TYPES) {
             FILE_TYPE_MAPPER.put(text, FileType.simText);
         }
         for (String media : MEDIA_TYPES) {
@@ -48,11 +50,29 @@ public enum FileType {
         FILE_TYPE_MAPPER.put("xml", FileType.xml);
         FILE_TYPE_MAPPER.put("pdf", FileType.pdf);
         FILE_TYPE_MAPPER.put("dwg", FileType.cad);
+        FILE_TYPE_MAPPER.put("flv", FileType.flv);
+
     }
 
-    public static FileType to(String fileType){
+    private static FileType to(String fileType){
         return FILE_TYPE_MAPPER.getOrDefault(fileType,other);
     }
+    /**
+     * 查看文件类型(防止参数中存在.点号或者其他特殊字符，所以先抽取文件名，然后再获取文件类型)
+     *
+     * @param url url
+     * @return 文件类型
+     */
+    public static FileType typeFromUrl(String url) {
+        String nonPramStr = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
+        String fileName = nonPramStr.substring(nonPramStr.lastIndexOf("/") + 1);
+        return typeFromFileName(fileName);
+    }
+
+    public static FileType typeFromFileName(String fileName) {
+        String fileType = fileName.substring(fileName.lastIndexOf(".") + 1);
+        return FileType.to(fileType);
+    }
 
     private final String instanceName;
 

server/src/main/java/cn/keking/model/ReturnResponse.java

@@ -4,11 +4,18 @@ import java.io.Serializable;
 
 /**
  * 接口返回值结构
+ *
  * @author yudian-it
  * @date 2017/11/17
  */
-public class ReturnResponse<T> implements Serializable{
+public class ReturnResponse<T> implements Serializable {
     private static final long serialVersionUID = 313975329998789878L;
+
+    public static final int SUCCESS_CODE = 0;
+    public static final int FAILURE_CODE = 1;
+    public static final String SUCCESS_MSG = "SUCCESS";
+    public static final String FAILURE_MSG = "FAILURE";
+
     /**
      * 返回状态
      * 0. 成功
@@ -31,6 +38,30 @@ public class ReturnResponse<T> implements Serializable{
         this.content = content;
     }
 
+    public static ReturnResponse<Object> failure(String errMsg) {
+        return new ReturnResponse<>(FAILURE_CODE, errMsg, null);
+    }
+
+    public static ReturnResponse<Object> failure() {
+        return failure(FAILURE_MSG);
+    }
+
+    public static ReturnResponse<Object> success(){
+        return success(null);
+    }
+
+    public static ReturnResponse<Object> success(Object content) {
+        return new ReturnResponse<>(SUCCESS_CODE, SUCCESS_MSG, content);
+    }
+
+    public boolean isSuccess(){
+        return SUCCESS_CODE == code;
+    }
+
+    public boolean isFailure(){
+        return !isSuccess();
+    }
+
     public int getCode() {
         return code;
     }

server/src/main/java/cn/keking/service/CompressFileReader.java

@@ -67,7 +67,7 @@ public class CompressFileReader {
                 }
                 String parentName = getLast2FileName(fullName, archiveSeparator, archiveFileName);
                 parentName = (level - 1) + "_" + parentName;
-                FileType type = fileHandlerService.typeFromUrl(childName);
+                FileType type = FileType.typeFromUrl(childName);
                 if (type.equals(FileType.picture)) {//添加图片文件到图片列表
                     imgUrls.add(baseUrl + childName);
                 }
@@ -120,7 +120,7 @@ public class CompressFileReader {
                     headersToBeExtracted.add(Collections.singletonMap(childName, header));
                 }
                 String parentName = getLast2FileName(fullName, "\\", archiveFileName);
-                FileType type = fileHandlerService.typeFromUrl(childName);
+                FileType type = FileType.typeFromUrl(childName);
                 if (type.equals(FileType.picture)) {//添加图片文件到图片列表
                     imgUrls.add(baseUrl + childName);
                 }
@@ -163,7 +163,7 @@ public class CompressFileReader {
                 }
                 String parentName = getLast2FileName(fullName, archiveSeparator, archiveFileName);
                 parentName = (level - 1) + "_" + parentName;
-                FileType type = fileHandlerService.typeFromUrl(childName);
+                FileType type = FileType.typeFromUrl(childName);
                 if (type.equals(FileType.picture)) {//添加图片文件到图片列表
                     imgUrls.add(baseUrl + childName);
                 }

server/src/main/java/cn/keking/service/FileConvertQueueTask.java

@@ -10,6 +10,7 @@ import org.springframework.ui.ExtendedModelMap;
 import javax.annotation.PostConstruct;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Created by kl on 2018/1/19.
@@ -70,7 +71,7 @@ public class FileConvertQueueTask {
                     }
                 } catch (Exception e) {
                     try {
-                        Thread.sleep(1000*10);
+                        TimeUnit.SECONDS.sleep(10);
                     } catch (Exception ex){
                         ex.printStackTrace();
                     }

server/src/main/java/cn/keking/service/FileHandlerService.java

@@ -4,13 +4,28 @@ import cn.keking.config.ConfigConstants;
 import cn.keking.model.FileAttribute;
 import cn.keking.model.FileType;
 import cn.keking.service.cache.CacheService;
+import cn.keking.utils.FileUtils;
+import cn.keking.utils.WebUtils;
+import com.aspose.cad.Color;
+import com.aspose.cad.fileformats.cad.CadDrawTypeMode;
+import com.aspose.cad.imageoptions.CadRasterizationOptions;
+import com.aspose.cad.imageoptions.PdfOptions;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.rendering.ImageType;
+import org.apache.pdfbox.rendering.PDFRenderer;
+import org.apache.pdfbox.tools.imageio.ImageIOUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 import org.springframework.util.StringUtils;
 
 import javax.servlet.http.HttpServletRequest;
+import java.awt.image.BufferedImage;
 import java.io.*;
+import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -21,10 +36,15 @@ import java.util.Map;
 @Component
 public class FileHandlerService {
 
+    private final Logger logger = LoggerFactory.getLogger(FileHandlerService.class);
+
     private static final String DEFAULT_CONVERTER_CHARSET = System.getProperty("sun.jnu.encoding");
     private final String fileDir = ConfigConstants.getFileDir();
     private final CacheService cacheService;
 
+    @Value("${server.tomcat.uri-encoding:UTF-8}")
+    private String uriEncoding;
+
     public FileHandlerService(CacheService cacheService) {
         this.cacheService = cacheService;
     }
@@ -51,35 +71,6 @@ public class FileHandlerService {
         return cacheService.getPdfImageCache(key);
     }
 
-    /**
-     * 查看文件类型(防止参数中存在.点号或者其他特殊字符，所以先抽取文件名，然后再获取文件类型)
-     *
-     * @param url url
-     * @return 文件类型
-     */
-    public FileType typeFromUrl(String url) {
-        String nonPramStr = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
-        String fileName = nonPramStr.substring(nonPramStr.lastIndexOf("/") + 1);
-        return this.typeFromFileName(fileName);
-    }
-
-    private FileType typeFromFileName(String fileName) {
-        String fileType = fileName.substring(fileName.lastIndexOf(".") + 1);
-        return FileType.to(fileType);
-    }
-
-    /**
-     * 从url中剥离出文件名
-     *
-     * @param url 格式如：http://www.com.cn/20171113164107_月度绩效表模板(新).xls?UCloudPublicKey=ucloudtangshd@weifenf.com14355492830001993909323&Expires=&Signature=I D1NOFtAJSPT16E6imv6JWuq0k=
-     * @return 文件名
-     */
-    public String getFileNameFromURL(String url) {
-        // 因为url的参数中可能会存在/的情况，所以直接url.lastIndexOf("/")会有问题
-        // 所以先从？处将url截断，然后运用url.lastIndexOf("/")获取文件名
-        String noQueryUrl = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
-        return noQueryUrl.substring(noQueryUrl.lastIndexOf("/") + 1);
-    }
 
     /**
      * 从路径中获取文件负
@@ -174,68 +165,87 @@ public class FileHandlerService {
     }
 
     /**
-     * 获取文件后缀
-     *
-     * @param url url
-     * @return 文件后缀
+     *  pdf文件转换成jpg图片集
+     * @param pdfFilePath pdf文件路径
+     * @param pdfName pdf文件名称
+     * @param baseUrl 基础访问地址
+     * @return 图片访问集合
      */
-    private String suffixFromUrl(String url) {
-        String nonPramStr = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
-        String fileName = nonPramStr.substring(nonPramStr.lastIndexOf("/") + 1);
-        return suffixFromFileName(fileName);
-    }
+    public List<String> pdf2jpg(String pdfFilePath, String pdfName, String baseUrl) {
+        List<String> imageUrls = new ArrayList<>();
+        Integer imageCount = this.getConvertedPdfImage(pdfFilePath);
+        String imageFileSuffix = ".jpg";
+        String pdfFolder = pdfName.substring(0, pdfName.length() - 4);
+        String urlPrefix;
+        try {
+            urlPrefix = baseUrl + URLEncoder.encode(URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\\+", "%20"), uriEncoding);
+        } catch (UnsupportedEncodingException e) {
+            logger.error("UnsupportedEncodingException", e);
+            urlPrefix = baseUrl + pdfFolder;
+        }
+        if (imageCount != null && imageCount > 0) {
+            for (int i = 0; i < imageCount; i++)
+                imageUrls.add(urlPrefix + "/" + i + imageFileSuffix);
+            return imageUrls;
+        }
+        try {
+            File pdfFile = new File(pdfFilePath);
+            PDDocument doc = PDDocument.load(pdfFile);
+            int pageCount = doc.getNumberOfPages();
+            PDFRenderer pdfRenderer = new PDFRenderer(doc);
 
-    private String suffixFromFileName(String fileName) {
-        return fileName.substring(fileName.lastIndexOf(".") + 1);
+            int index = pdfFilePath.lastIndexOf(".");
+            String folder = pdfFilePath.substring(0, index);
+
+            File path = new File(folder);
+            if (!path.exists() && !path.mkdirs()) {
+                logger.error("创建转换文件【{}】目录失败，请检查目录权限！", folder);
+            }
+            String imageFilePath;
+            for (int pageIndex = 0; pageIndex < pageCount; pageIndex++) {
+                imageFilePath = folder + File.separator + pageIndex + imageFileSuffix;
+                BufferedImage image = pdfRenderer.renderImageWithDPI(pageIndex, 105, ImageType.RGB);
+                ImageIOUtil.writeImage(image, imageFilePath, 105);
+                imageUrls.add(urlPrefix + "/" + pageIndex + imageFileSuffix);
+            }
+            doc.close();
+            this.addConvertedPdfImage(pdfFilePath, pageCount);
+        } catch (IOException e) {
+            logger.error("Convert pdf to jpg exception, pdfFilePath：{}", pdfFilePath, e);
+        }
+        return imageUrls;
     }
 
     /**
-     * 获取url中的参数
-     *
-     * @param url  url
-     * @param name 参数名
-     * @return 参数值
+     * cad文件转pdf
+     * @param inputFilePath cad文件路径
+     * @param outputFilePath pdf输出文件路径
+     * @return 转换是否成功
      */
-    public String getUrlParameterReg(String url, String name) {
-        Map<String, String> mapRequest = new HashMap<>();
-        String strUrlParam = truncateUrlPage(url);
-        if (strUrlParam == null) {
-            return "";
+    public boolean cadToPdf(String inputFilePath, String outputFilePath)  {
+        com.aspose.cad.Image cadImage = com.aspose.cad.Image.load(inputFilePath);
+        CadRasterizationOptions cadRasterizationOptions = new CadRasterizationOptions();
+        cadRasterizationOptions.setLayouts(new String[]{"Model"});
+        cadRasterizationOptions.setNoScaling(true);
+        cadRasterizationOptions.setBackgroundColor(Color.getWhite());
+        cadRasterizationOptions.setPageWidth(cadImage.getWidth());
+        cadRasterizationOptions.setPageHeight(cadImage.getHeight());
+        cadRasterizationOptions.setPdfProductLocation("center");
+        cadRasterizationOptions.setAutomaticLayoutsScaling(true);
+        cadRasterizationOptions.setDrawType(CadDrawTypeMode.UseObjectColor);
+        PdfOptions pdfOptions = new PdfOptions();
+        pdfOptions.setVectorRasterizationOptions(cadRasterizationOptions);
+        File outputFile = new File(outputFilePath);
+        OutputStream stream;
+        try {
+            stream = new FileOutputStream(outputFile);
+            cadImage.save(stream, pdfOptions);
+            cadImage.close();
+            return true;
+        } catch (FileNotFoundException e) {
+            logger.error("PDFFileNotFoundException，inputFilePath：{}", inputFilePath, e);
+            return false;
         }
-        //每个键值为一组
-        String[] arrSplit = strUrlParam.split("[&]");
-        for (String strSplit : arrSplit) {
-            String[] arrSplitEqual = strSplit.split("[=]");
-            //解析出键值
-            if (arrSplitEqual.length > 1) {
-                //正确解析
-                mapRequest.put(arrSplitEqual[0], arrSplitEqual[1]);
-            } else if (!arrSplitEqual[0].equals("")) {
-                //只有参数没有值，不加入
-                mapRequest.put(arrSplitEqual[0], "");
-            }
-        }
-        return mapRequest.get(name);
-    }
-
-    /**
-     * 去掉url中的路径，留下请求参数部分
-     *
-     * @param strURL url地址
-     * @return url请求参数部分
-     */
-    private String truncateUrlPage(String strURL) {
-        String strAllParam = null;
-        strURL = strURL.trim();
-        String[] arrSplit = strURL.split("[?]");
-        if (strURL.length() > 1) {
-            if (arrSplit.length > 1) {
-                if (arrSplit[1] != null) {
-                    strAllParam = arrSplit[1];
-                }
-            }
-        }
-        return strAllParam;
     }
 
     /**
@@ -249,15 +259,15 @@ public class FileHandlerService {
         String suffix;
         FileType type;
         String fileName;
-        String fullFileName = this.getUrlParameterReg(url, "fullfilename");
+        String fullFileName = WebUtils.getUrlParameterReg(url, "fullfilename");
         if (StringUtils.hasText(fullFileName)) {
             fileName = fullFileName;
-            type = this.typeFromFileName(fullFileName);
-            suffix = suffixFromFileName(fullFileName);
+            type = FileType.typeFromFileName(fullFileName);
+            suffix = FileUtils.suffixFromFileName(fullFileName);
         } else {
-            fileName = getFileNameFromURL(url);
-            type = typeFromUrl(url);
-            suffix = suffixFromUrl(url);
+            fileName = WebUtils.getFileNameFromURL(url);
+            type = FileType.typeFromUrl(url);
+            suffix = WebUtils.suffixFromUrl(url);
         }
         attribute.setType(type);
         attribute.setName(fileName);

server/src/main/java/cn/keking/service/FilePreview.java

@@ -8,5 +8,16 @@ import org.springframework.ui.Model;
  * Content :
  */
 public interface FilePreview {
+
+    String FLV_FILE_PREVIEW_PAGE = "flv";
+    String PDF_FILE_PREVIEW_PAGE = "pdf";
+    String COMPRESS_FILE_PREVIEW_PAGE = "compress";
+    String MEDIA_FILE_PREVIEW_PAGE = "media";
+    String PICTURE_FILE_PREVIEW_PAGE = "picture";
+    String OFFICE_PICTURE_FILE_PREVIEW_PAGE = "officePicture";
+    String TXT_FILE_PREVIEW_PAGE = "txt";
+    String EXEL_FILE_PREVIEW_PAGE = "html";
+    String NOT_SUPPORTED_FILE_PAGE = "fileNotSupported";
+
     String filePreviewHandle(String url, Model model, FileAttribute fileAttribute);
 }

server/src/main/java/cn/keking/service/OfficePluginExtendFormatRegistry.java

@@ -1,4 +1,4 @@
-package cn.keking.extend;
+package cn.keking.service;
 
 import org.artofsolving.jodconverter.document.DocumentFamily;
 import org.artofsolving.jodconverter.document.DocumentFormat;
@@ -13,9 +13,9 @@ import java.util.Map;
  * @author yudian-it
  * @date 2017/12/5
  */
-public class ControlDocumentFormatRegistry extends SimpleDocumentFormatRegistry {
+public class OfficePluginExtendFormatRegistry extends SimpleDocumentFormatRegistry {
 
-    public ControlDocumentFormatRegistry() {
+    public OfficePluginExtendFormatRegistry() {
         DocumentFormat pdf = new DocumentFormat("Portable Document Format", "pdf", "application/pdf");
         pdf.setStoreProperties(DocumentFamily.TEXT, Collections.singletonMap("FilterName", "writer_pdf_Export"));
         pdf.setStoreProperties(DocumentFamily.SPREADSHEET, Collections.singletonMap("FilterName", "calc_pdf_Export"));

server/src/main/java/cn/keking/service/OfficePluginManager.java

@@ -1,7 +1,6 @@
 package cn.keking.service;
 
 import com.sun.star.document.UpdateDocMode;
-import cn.keking.extend.ControlDocumentFormatRegistry;
 import org.apache.commons.lang3.StringUtils;
 import org.artofsolving.jodconverter.OfficeDocumentConverter;
 import org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration;
@@ -72,7 +71,7 @@ public class OfficePluginManager {
     }
 
     public OfficeDocumentConverter getDocumentConverter() {
-        OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager, new ControlDocumentFormatRegistry());
+        OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager, new OfficePluginExtendFormatRegistry());
         converter.setDefaultLoadProperties(getLoadProperties());
         return converter;
     }

server/src/main/java/cn/keking/service/OfficeToPdfService.java

@@ -1,6 +1,8 @@
 package cn.keking.service;
 
 import org.artofsolving.jodconverter.OfficeDocumentConverter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
 import java.io.File;
@@ -10,6 +12,8 @@ import java.io.File;
  */
 @Component
 public class OfficeToPdfService {
+
+    private final static Logger logger = LoggerFactory.getLogger(OfficeToPdfService.class);
     private final OfficePluginManager officePluginManager;
 
     public OfficeToPdfService(OfficePluginManager officePluginManager) {
@@ -21,12 +25,11 @@ public class OfficeToPdfService {
     }
 
 
-    public static void converterFile(File inputFile, String outputFilePath_end,
-                                     OfficeDocumentConverter converter) {
+    public static void converterFile(File inputFile, String outputFilePath_end, OfficeDocumentConverter converter) {
         File outputFile = new File(outputFilePath_end);
         // 假如目标路径不存在,则新建该路径
-        if (!outputFile.getParentFile().exists()) {
-            outputFile.getParentFile().mkdirs();
+        if (!outputFile.getParentFile().exists() && !outputFile.getParentFile().mkdirs()) {
+            logger.error("创建目录【{}】失败，请检查目录权限！",outputFilePath_end);
         }
         converter.convert(inputFile, outputFile);
     }

server/src/main/java/cn/keking/service/cache/impl/CacheServiceRedisImpl.java

@@ -28,19 +28,11 @@ public class CacheServiceRedisImpl implements CacheService {
     }
 
     @Override
-    public void initPDFCachePool(Integer capacity) {
-
-    }
-
+    public void initPDFCachePool(Integer capacity) { }
     @Override
-    public void initIMGCachePool(Integer capacity) {
-
-    }
-
+    public void initIMGCachePool(Integer capacity) { }
     @Override
-    public void initPdfImagesCachePool(Integer capacity) {
-
-    }
+    public void initPdfImagesCachePool(Integer capacity) { }
 
     @Override
     public void putPDFCache(String key, String value) {

server/src/main/java/cn/keking/service/cache/impl/CacheServiceRocksDBImpl.java

@@ -31,11 +31,8 @@ public class CacheServiceRocksDBImpl implements CacheService {
     }
 
     private static final String DB_PATH = ConfigUtils.getHomePath() + File.separator + "cache";
-
     private static final int QUEUE_SIZE = 500000;
-
     private static final Logger LOGGER = LoggerFactory.getLogger(CacheServiceRocksDBImpl.class);
-
     private final BlockingQueue<String> blockingQueue = new ArrayBlockingQueue<>(QUEUE_SIZE);
 
     private RocksDB db;

server/src/main/java/cn/keking/service/impl/CadFilePreviewImpl.java

@@ -4,10 +4,8 @@ import cn.keking.config.ConfigConstants;
 import cn.keking.model.FileAttribute;
 import cn.keking.model.ReturnResponse;
 import cn.keking.service.FilePreview;
-import cn.keking.utils.CadUtils;
 import cn.keking.utils.DownloadUtils;
 import cn.keking.service.FileHandlerService;
-import cn.keking.utils.PdfUtils;
 import cn.keking.web.filter.BaseUrlFilter;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
@@ -22,55 +20,38 @@ import static cn.keking.service.impl.OfficeFilePreviewImpl.getPreviewType;
 @Service
 public class CadFilePreviewImpl implements FilePreview {
 
-    private final FileHandlerService fileHandlerService;
-
-    private final DownloadUtils downloadUtils;
-
-    private final CadUtils cadUtils;
-
-    private final PdfUtils pdfUtils;
-
-    public CadFilePreviewImpl(FileHandlerService fileHandlerService,
-                              DownloadUtils downloadUtils,
-                              CadUtils cadUtils,
-                              PdfUtils pdfUtils) {
-        this.fileHandlerService = fileHandlerService;
-        this.downloadUtils = downloadUtils;
-        this.cadUtils = cadUtils;
-        this.pdfUtils = pdfUtils;
-
-    }
-
     private static final String OFFICE_PREVIEW_TYPE_IMAGE = "image";
     private static final String OFFICE_PREVIEW_TYPE_ALL_IMAGES = "allImages";
     private static final String FILE_DIR = ConfigConstants.getFileDir();
 
+    private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
+
+    public CadFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
+        this.fileHandlerService = fileHandlerService;
+        this.otherFilePreview = otherFilePreview;
+    }
 
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         // 预览Type，参数传了就取参数的，没传取系统默认
         String officePreviewType = model.asMap().get("officePreviewType") == null ? ConfigConstants.getOfficePreviewType() : model.asMap().get("officePreviewType").toString();
         String baseUrl = BaseUrlFilter.getBaseUrl();
-        String suffix=fileAttribute.getSuffix();
-        String fileName=fileAttribute.getName();
+        String fileName = fileAttribute.getName();
         String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
         String outFilePath = FILE_DIR + pdfName;
         // 判断之前是否已转换过，如果转换过，直接返回，否则执行转换
         if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
             String filePath;
-            ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null);
-            if (0 != response.getCode()) {
-                model.addAttribute("fileType", suffix);
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+            ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
+            if (response.isFailure()) {
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             }
             filePath = response.getContent();
             if (StringUtils.hasText(outFilePath)) {
-                boolean convertResult = cadUtils.cadToPdf(filePath, outFilePath);
+                boolean convertResult = fileHandlerService.cadToPdf(filePath, outFilePath);
                 if (!convertResult) {
-                    model.addAttribute("fileType", suffix);
-                    model.addAttribute("msg", "cad文件转换异常，请联系管理员");
-                    return "fileNotSupported";
+                    return otherFilePreview.notSupportedFile(model, fileAttribute, "cad文件转换异常，请联系管理员");
                 }
                 if (ConfigConstants.isCacheEnabled()) {
                     // 加入缓存
@@ -79,10 +60,10 @@ public class CadFilePreviewImpl implements FilePreview {
             }
         }
         if (baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
-            return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, pdfUtils, OFFICE_PREVIEW_TYPE_IMAGE);
+            return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE,otherFilePreview);
         }
         model.addAttribute("pdfUrl", pdfName);
-        return "pdf";
+        return PDF_FILE_PREVIEW_PAGE;
     }
 
 

server/src/main/java/cn/keking/service/impl/CompressFilePreviewImpl.java

@@ -19,13 +19,13 @@ import org.springframework.util.StringUtils;
 public class CompressFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
-    private final DownloadUtils downloadUtils;
     private final CompressFileReader compressFileReader;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public CompressFilePreviewImpl(FileHandlerService fileHandlerService, DownloadUtils downloadUtils, CompressFileReader compressFileReader) {
+    public CompressFilePreviewImpl(FileHandlerService fileHandlerService, CompressFileReader compressFileReader, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
-        this.downloadUtils = downloadUtils;
         this.compressFileReader = compressFileReader;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -35,11 +35,9 @@ public class CompressFilePreviewImpl implements FilePreview {
         String fileTree = null;
         // 判断文件名是否存在(redis缓存读取)
         if (!StringUtils.hasText(fileHandlerService.getConvertedFile(fileName))  || !ConfigConstants.isCacheEnabled()) {
-            ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileName);
-            if (0 != response.getCode()) {
-                model.addAttribute("fileType", suffix);
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+            ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
+            if (response.isFailure()) {
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             }
             String filePath = response.getContent();
             if ("zip".equalsIgnoreCase(suffix) || "jar".equalsIgnoreCase(suffix) || "gzip".equalsIgnoreCase(suffix)) {
@@ -57,11 +55,9 @@ public class CompressFilePreviewImpl implements FilePreview {
         }
         if (fileTree != null && !"null".equals(fileTree)) {
             model.addAttribute("fileTree", fileTree);
-            return "compress";
+            return COMPRESS_FILE_PREVIEW_PAGE;
         } else {
-            model.addAttribute("fileType", suffix);
-            model.addAttribute("msg", "压缩文件类型不受支持，尝试在压缩的时候选择RAR4格式");
-            return "fileNotSupported";
+            return otherFilePreview.notSupportedFile(model, fileAttribute, "压缩文件类型不受支持，尝试在压缩的时候选择RAR4格式");
         }
     }
 }

server/src/main/java/cn/keking/service/impl/FlvFilePreviewImpl.java

@@ -0,0 +1,27 @@
+package cn.keking.service.impl;
+
+import cn.keking.model.FileAttribute;
+import cn.keking.service.FilePreview;
+import org.springframework.stereotype.Service;
+import org.springframework.ui.Model;
+
+/**
+ * @author : kl
+ * create : 2020-12-27 2:50 下午
+ * flv文件预览处理实现
+ **/
+@Service
+public class FlvFilePreviewImpl implements FilePreview {
+
+    private final MediaFilePreviewImpl mediaFilePreview;
+
+    public FlvFilePreviewImpl(MediaFilePreviewImpl mediaFilePreview) {
+        this.mediaFilePreview = mediaFilePreview;
+    }
+
+    @Override
+    public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
+        mediaFilePreview.filePreviewHandle(url,model,fileAttribute);
+        return FLV_FILE_PREVIEW_PAGE;
+    }
+}

server/src/main/java/cn/keking/service/impl/MarkdownFilePreviewImpl.java

@@ -5,7 +5,7 @@ import cn.keking.service.FilePreview;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
 
-import static com.sun.glass.ui.Clipboard.TEXT_TYPE;
+import static cn.keking.service.impl.SimTextFilePreviewImpl.TEXT_TYPE;
 
 /**
  * @author kl (http://kailing.pub)

server/src/main/java/cn/keking/service/impl/MediaFilePreviewImpl.java

@@ -8,6 +8,7 @@ import cn.keking.service.FileHandlerService;
 import cn.keking.web.filter.BaseUrlFilter;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
+
 /**
  * @author : kl
  * @authorboke : kailing.pub
@@ -17,25 +18,21 @@ import org.springframework.ui.Model;
 @Service
 public class MediaFilePreviewImpl implements FilePreview {
 
-    private final DownloadUtils downloadUtils;
-
     private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public MediaFilePreviewImpl(DownloadUtils downloadUtils,
-                                FileHandlerService fileHandlerService) {
-        this.downloadUtils = downloadUtils;
+    public MediaFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         // 不是http开头，浏览器不能直接访问，需下载到本地
         if (url != null && !url.toLowerCase().startsWith("http")) {
-            ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileAttribute.getName());
-            if (0 != response.getCode()) {
-                model.addAttribute("fileType", fileAttribute.getSuffix());
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+            ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileAttribute.getName());
+            if (response.isFailure()) {
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             } else {
                 model.addAttribute("mediaUrl", BaseUrlFilter.getBaseUrl() + fileHandlerService.getRelativePath(response.getContent()));
             }
@@ -43,11 +40,7 @@ public class MediaFilePreviewImpl implements FilePreview {
             model.addAttribute("mediaUrl", url);
         }
         model.addAttribute("mediaUrl", url);
-        String suffix=fileAttribute.getSuffix();
-        if ("flv".equalsIgnoreCase(suffix)) {
-            return "flv";
-        }
-        return "media";
+        return MEDIA_FILE_PREVIEW_PAGE;
     }
 
 

server/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java

@@ -7,7 +7,6 @@ import cn.keking.service.FilePreview;
 import cn.keking.utils.DownloadUtils;
 import cn.keking.service.FileHandlerService;
 import cn.keking.service.OfficeToPdfService;
-import cn.keking.utils.PdfUtils;
 import cn.keking.web.filter.BaseUrlFilter;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
@@ -22,40 +21,36 @@ import java.util.List;
 @Service
 public class OfficeFilePreviewImpl implements FilePreview {
 
-    private final FileHandlerService fileHandlerService;
-    private final PdfUtils pdfUtils;
-    private final DownloadUtils downloadUtils;
-    private final OfficeToPdfService officeToPdfService;
-
-    public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, PdfUtils pdfUtils, DownloadUtils downloadUtils, OfficeToPdfService officeToPdfService) {
-        this.fileHandlerService = fileHandlerService;
-        this.pdfUtils = pdfUtils;
-        this.downloadUtils = downloadUtils;
-        this.officeToPdfService = officeToPdfService;
-    }
-
     public static final String OFFICE_PREVIEW_TYPE_IMAGE = "image";
     public static final String OFFICE_PREVIEW_TYPE_ALL_IMAGES = "allImages";
     private static final String FILE_DIR = ConfigConstants.getFileDir();
 
+    private final FileHandlerService fileHandlerService;
+    private final OfficeToPdfService officeToPdfService;
+    private final OtherFilePreviewImpl otherFilePreview;
+
+    public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, OfficeToPdfService officeToPdfService, OtherFilePreviewImpl otherFilePreview) {
+        this.fileHandlerService = fileHandlerService;
+        this.officeToPdfService = officeToPdfService;
+        this.otherFilePreview = otherFilePreview;
+    }
+
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         // 预览Type，参数传了就取参数的，没传取系统默认
         String officePreviewType = fileAttribute.getOfficePreviewType();
         String baseUrl = BaseUrlFilter.getBaseUrl();
-        String suffix=fileAttribute.getSuffix();
-        String fileName=fileAttribute.getName();
+        String suffix = fileAttribute.getSuffix();
+        String fileName = fileAttribute.getName();
         boolean isHtml = suffix.equalsIgnoreCase("xls") || suffix.equalsIgnoreCase("xlsx");
         String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + (isHtml ? "html" : "pdf");
         String outFilePath = FILE_DIR + pdfName;
         // 判断之前是否已转换过，如果转换过，直接返回，否则执行转换
         if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
             String filePath;
-            ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null);
-            if (0 != response.getCode()) {
-                model.addAttribute("fileType", suffix);
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+            ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
+            if (response.isFailure()) {
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             }
             filePath = response.getContent();
             if (StringUtils.hasText(outFilePath)) {
@@ -71,25 +66,23 @@ public class OfficeFilePreviewImpl implements FilePreview {
             }
         }
         if (!isHtml && baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
-            return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, pdfUtils, OFFICE_PREVIEW_TYPE_IMAGE);
+            return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE, otherFilePreview);
         }
         model.addAttribute("pdfUrl", pdfName);
-        return isHtml ? "html" : "pdf";
+        return isHtml ? EXEL_FILE_PREVIEW_PAGE : PDF_FILE_PREVIEW_PAGE;
     }
 
-    static String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType, String baseUrl, String pdfName, String outFilePath, PdfUtils pdfUtils, String officePreviewTypeImage) {
-        List<String> imageUrls = pdfUtils.pdf2jpg(outFilePath, pdfName, baseUrl);
+    static String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType, String baseUrl, String pdfName, String outFilePath, FileHandlerService fileHandlerService, String officePreviewTypeImage, OtherFilePreviewImpl otherFilePreview) {
+        List<String> imageUrls = fileHandlerService.pdf2jpg(outFilePath, pdfName, baseUrl);
         if (imageUrls == null || imageUrls.size() < 1) {
-            model.addAttribute("msg", "office转图片异常，请联系管理员");
-            model.addAttribute("fileType",fileAttribute.getSuffix());
-            return "fileNotSupported";
+            return otherFilePreview.notSupportedFile(model, fileAttribute, "office转图片异常，请联系管理员");
         }
         model.addAttribute("imgurls", imageUrls);
         model.addAttribute("currentUrl", imageUrls.get(0));
         if (officePreviewTypeImage.equals(officePreviewType)) {
-            return "officePicture";
+            return OFFICE_PICTURE_FILE_PREVIEW_PAGE;
         } else {
-            return "picture";
+            return PICTURE_FILE_PREVIEW_PAGE;
         }
     }
 }

server/src/main/java/cn/keking/service/impl/OtherFilePreviewImpl.java

@@ -11,10 +11,41 @@ import org.springframework.ui.Model;
  */
 @Service
 public class OtherFilePreviewImpl implements FilePreview {
+
+
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
-        model.addAttribute("fileType",fileAttribute.getSuffix());
-        model.addAttribute("msg", "系统还不支持该格式文件的在线预览");
-        return "fileNotSupported";
+        return this.notSupportedFile(model, fileAttribute, "系统还不支持该格式文件的在线预览");
     }
+
+    /**
+     * 通用的预览失败，导向到不支持的文件响应页面
+     *
+     * @return 页面
+     */
+    public String notSupportedFile(Model model, FileAttribute fileAttribute, String errMsg) {
+        return this.notSupportedFile(model, fileAttribute.getSuffix(), errMsg);
+    }
+
+    /**
+     * 通用的预览失败，导向到不支持的文件响应页面
+     *
+     * @return 页面
+     */
+    public String notSupportedFile(Model model, String errMsg) {
+        return this.notSupportedFile(model, "未知", errMsg);
+    }
+
+    /**
+     * 通用的预览失败，导向到不支持的文件响应页面
+     *
+     * @return 页面
+     */
+    public String notSupportedFile(Model model, String fileType, String errMsg) {
+        model.addAttribute("fileType", fileType);
+        model.addAttribute("msg", errMsg);
+        return NOT_SUPPORTED_FILE_PAGE;
+    }
+
+
 }

server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java

@@ -6,7 +6,6 @@ import cn.keking.model.ReturnResponse;
 import cn.keking.service.FilePreview;
 import cn.keking.utils.DownloadUtils;
 import cn.keking.service.FileHandlerService;
-import cn.keking.utils.PdfUtils;
 import cn.keking.web.filter.BaseUrlFilter;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
@@ -21,25 +20,17 @@ import java.util.List;
 public class PdfFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
-
-    private final PdfUtils pdfUtils;
-
-    private final DownloadUtils downloadUtils;
-
+    private final OtherFilePreviewImpl otherFilePreview;
     private static final String FILE_DIR = ConfigConstants.getFileDir();
 
-    public PdfFilePreviewImpl(FileHandlerService fileHandlerService,
-                              PdfUtils pdfUtils,
-                              DownloadUtils downloadUtils) {
+    public PdfFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
-        this.pdfUtils = pdfUtils;
-        this.downloadUtils = downloadUtils;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
-        String suffix=fileAttribute.getSuffix();
-        String fileName=fileAttribute.getName();
+        String fileName = fileAttribute.getName();
         String officePreviewType = fileAttribute.getOfficePreviewType();
         String baseUrl = BaseUrlFilter.getBaseUrl();
         String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
@@ -47,11 +38,9 @@ public class PdfFilePreviewImpl implements FilePreview {
         if (OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType)) {
             //当文件不存在时，就去下载
             if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
-                ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileName);
-                if (0 != response.getCode()) {
-                    model.addAttribute("fileType", suffix);
-                    model.addAttribute("msg", response.getMsg());
-                    return "fileNotSupported";
+                ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
+                if (response.isFailure()) {
+                    return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
                 }
                 outFilePath = response.getContent();
                 if (ConfigConstants.isCacheEnabled()) {
@@ -59,28 +48,24 @@ public class PdfFilePreviewImpl implements FilePreview {
                     fileHandlerService.addConvertedFile(pdfName, fileHandlerService.getRelativePath(outFilePath));
                 }
             }
-            List<String> imageUrls = pdfUtils.pdf2jpg(outFilePath, pdfName, baseUrl);
+            List<String> imageUrls = fileHandlerService.pdf2jpg(outFilePath, pdfName, baseUrl);
             if (imageUrls == null || imageUrls.size() < 1) {
-                model.addAttribute("msg", "pdf转图片异常，请联系管理员");
-                model.addAttribute("fileType",fileAttribute.getSuffix());
-                return "fileNotSupported";
+                return otherFilePreview.notSupportedFile(model, fileAttribute, "pdf转图片异常，请联系管理员");
             }
             model.addAttribute("imgurls", imageUrls);
             model.addAttribute("currentUrl", imageUrls.get(0));
             if (OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType)) {
-                return "officePicture";
+                return OFFICE_PICTURE_FILE_PREVIEW_PAGE;
             } else {
-                return "picture";
+                return PICTURE_FILE_PREVIEW_PAGE;
             }
         } else {
             // 不是http开头，浏览器不能直接访问，需下载到本地
             if (url != null && !url.toLowerCase().startsWith("http")) {
                 if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
-                    ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, pdfName);
-                    if (0 != response.getCode()) {
-                        model.addAttribute("fileType", suffix);
-                        model.addAttribute("msg", response.getMsg());
-                        return "fileNotSupported";
+                    ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, pdfName);
+                    if (response.isFailure()) {
+                        return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
                     }
                     model.addAttribute("pdfUrl", fileHandlerService.getRelativePath(response.getContent()));
                     if (ConfigConstants.isCacheEnabled()) {
@@ -94,6 +79,6 @@ public class PdfFilePreviewImpl implements FilePreview {
                 model.addAttribute("pdfUrl", url);
             }
         }
-        return "pdf";
+        return PDF_FILE_PREVIEW_PAGE;
     }
 }

server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java

@@ -19,13 +19,11 @@ import java.util.List;
 public class PictureFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    private final DownloadUtils downloadUtils;
-
-    public PictureFilePreviewImpl(FileHandlerService fileHandlerService,
-                                  DownloadUtils downloadUtils) {
+    public PictureFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
-        this.downloadUtils = downloadUtils;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -39,22 +37,20 @@ public class PictureFilePreviewImpl implements FilePreview {
         }
         // 不是http开头，浏览器不能直接访问，需下载到本地
         if (url != null && !url.toLowerCase().startsWith("http")) {
-            ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null);
-            if (0 != response.getCode()) {
-                model.addAttribute("fileType", fileAttribute.getSuffix());
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+            ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
+            if (response.isFailure()) {
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             } else {
                 String file = fileHandlerService.getRelativePath(response.getContent());
                 imgUrls.clear();
                 imgUrls.add(file);
-                model.addAttribute("imgurls", imgUrls);
+                model.addAttribute("imgUrls", imgUrls);
                 model.addAttribute("currentUrl", file);
             }
         } else {
-            model.addAttribute("imgurls", imgUrls);
+            model.addAttribute("imgUrls", imgUrls);
             model.addAttribute("currentUrl", url);
         }
-        return "picture";
+        return PICTURE_FILE_PREVIEW_PAGE;
     }
 }

server/src/main/java/cn/keking/service/impl/SimTextFilePreviewImpl.java

@@ -23,34 +23,30 @@ public class SimTextFilePreviewImpl implements FilePreview {
     public static final String TEXT_TYPE = "textType";
     public static final String DEFAULT_TEXT_TYPE = "simText";
 
-    private final DownloadUtils downloadUtils;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public SimTextFilePreviewImpl(DownloadUtils downloadUtils) {
-        this.downloadUtils = downloadUtils;
+    public SimTextFilePreviewImpl(OtherFilePreviewImpl otherFilePreview) {
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         String fileName = fileAttribute.getName();
-        ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileName);
-        if (0 != response.getCode()) {
-            model.addAttribute("msg", response.getMsg());
-            model.addAttribute("fileType", fileAttribute.getSuffix());
-            return "fileNotSupported";
+        ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
+        if (response.isFailure()) {
+            return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
         }
         try {
             File originFile = new File(response.getContent());
             String xmlString = FileUtils.readFileToString(originFile, StandardCharsets.UTF_8);
-            model.addAttribute("textData", Base64Utils.encodeToString(xmlString.getBytes()));
+            model.addAttribute("textData", Base64Utils.encodeToString(xmlString.getBytes(StandardCharsets.UTF_8)));
         } catch (IOException e) {
-            model.addAttribute("msg", e.getLocalizedMessage());
-            model.addAttribute("fileType", fileAttribute.getSuffix());
-            return "fileNotSupported";
+            return otherFilePreview.notSupportedFile(model, fileAttribute, e.getLocalizedMessage());
         }
         if (!model.containsAttribute(TEXT_TYPE)) {
             model.addAttribute(TEXT_TYPE, DEFAULT_TEXT_TYPE);
         }
-        return "txt";
+        return TXT_FILE_PREVIEW_PAGE;
     }
 
 }

server/src/main/java/cn/keking/service/impl/XmlFilePreviewImpl.java

@@ -5,7 +5,7 @@ import cn.keking.service.FilePreview;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
 
-import static com.sun.glass.ui.Clipboard.TEXT_TYPE;
+import static cn.keking.service.impl.SimTextFilePreviewImpl.TEXT_TYPE;
 
 /**
  * @author kl (http://kailing.pub)
@@ -20,7 +20,6 @@ public class XmlFilePreviewImpl implements FilePreview {
         this.simTextFilePreview = simTextFilePreview;
     }
 
-
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         model.addAttribute(TEXT_TYPE,"xml");

server/src/main/java/cn/keking/utils/CadUtils.java

@@ -1,50 +0,0 @@
-package cn.keking.utils;
-
-import com.aspose.cad.Color;
-import com.aspose.cad.fileformats.cad.CadDrawTypeMode;
-import com.aspose.cad.imageoptions.CadRasterizationOptions;
-import com.aspose.cad.imageoptions.PdfOptions;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Component;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.OutputStream;
-
-/**
- * @author chenjhc
- * @since 2019/11/21 14:34
- */
-@Component
-public class CadUtils {
-
-    private final Logger logger = LoggerFactory.getLogger(CadUtils.class);
-
-    public boolean cadToPdf(String inputFilePath, String outputFilePath)  {
-        com.aspose.cad.Image cadImage = com.aspose.cad.Image.load(inputFilePath);
-        CadRasterizationOptions cadRasterizationOptions = new CadRasterizationOptions();
-        cadRasterizationOptions.setLayouts(new String[]{"Model"});
-        cadRasterizationOptions.setNoScaling(true);
-        cadRasterizationOptions.setBackgroundColor(Color.getWhite());
-        cadRasterizationOptions.setPageWidth(cadImage.getWidth());
-        cadRasterizationOptions.setPageHeight(cadImage.getHeight());
-        cadRasterizationOptions.setPdfProductLocation("center");
-        cadRasterizationOptions.setAutomaticLayoutsScaling(true);
-        cadRasterizationOptions.setDrawType(CadDrawTypeMode.UseObjectColor);
-        PdfOptions pdfOptions = new PdfOptions();
-        pdfOptions.setVectorRasterizationOptions(cadRasterizationOptions);
-        File outputFile = new File(outputFilePath);
-        OutputStream stream;
-        try {
-            stream = new FileOutputStream(outputFile);
-            cadImage.save(stream, pdfOptions);
-            cadImage.close();
-            return true;
-        } catch (FileNotFoundException e) {
-            logger.error("PDFFileNotFoundException，inputFilePath：{}", inputFilePath, e);
-            return false;
-        }
-    }
-}

server/src/main/java/cn/keking/utils/DownloadUtils.java

@@ -1,14 +1,12 @@
 package cn.keking.utils;
 
 import cn.keking.config.ConfigConstants;
-import cn.keking.hutool.URLUtil;
 import cn.keking.model.FileAttribute;
 import cn.keking.model.FileType;
 import cn.keking.model.ReturnResponse;
-import cn.keking.service.FileHandlerService;
+import io.mola.galimatias.GalimatiasParseException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Component;
 
 import java.io.*;
 import java.net.*;
@@ -18,27 +16,20 @@ import java.util.UUID;
 /**
  * @author yudian-it
  */
-@Component
 public class DownloadUtils {
 
     private final static Logger logger = LoggerFactory.getLogger(DownloadUtils.class);
-    private final String fileDir = ConfigConstants.getFileDir();
+    private static final String fileDir = ConfigConstants.getFileDir();
     private static final String URL_PARAM_FTP_USERNAME = "ftp.username";
     private static final String URL_PARAM_FTP_PASSWORD = "ftp.password";
     private static final String URL_PARAM_FTP_CONTROL_ENCODING = "ftp.control.encoding";
 
-    private final FileHandlerService fileHandlerService;
-
-    public DownloadUtils(FileHandlerService fileHandlerService) {
-        this.fileHandlerService = fileHandlerService;
-    }
-
     /**
      * @param fileAttribute fileAttribute
      * @param fileName      文件名
      * @return 本地文件绝对路径
      */
-    public ReturnResponse<String> downLoad(FileAttribute fileAttribute, String fileName) {
+    public static ReturnResponse<String> downLoad(FileAttribute fileAttribute, String fileName) {
         String urlStr = fileAttribute.getUrl();
         String type = fileAttribute.getSuffix();
         ReturnResponse<String> response = new ReturnResponse<>(0, "下载成功!!!", "");
@@ -60,9 +51,9 @@ public class DownloadUtils {
                 OutputStream os = new FileOutputStream(realPath);
                 saveBytesToOutStream(bytes, os);
             } else if (url.getProtocol() != null && "ftp".equalsIgnoreCase(url.getProtocol())) {
-                String ftpUsername = fileHandlerService.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_USERNAME);
-                String ftpPassword = fileHandlerService.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_PASSWORD);
-                String ftpControlEncoding = fileHandlerService.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_CONTROL_ENCODING);
+                String ftpUsername = WebUtils.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_USERNAME);
+                String ftpPassword = WebUtils.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_PASSWORD);
+                String ftpControlEncoding = WebUtils.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_CONTROL_ENCODING);
                 FtpUtils.download(fileAttribute.getUrl(), realPath, ftpUsername, ftpPassword, ftpControlEncoding);
             } else {
                 response.setCode(1);
@@ -72,7 +63,7 @@ public class DownloadUtils {
             response.setContent(realPath);
             response.setMsg(fileName);
             if (FileType.simText.equals(fileAttribute.getType())) {
-                this.convertTextPlainFileCharsetToUtf8(realPath);
+                convertTextPlainFileCharsetToUtf8(realPath);
             }
             return response;
         } catch (IOException e) {
@@ -88,10 +79,9 @@ public class DownloadUtils {
         }
     }
 
-    public byte[] getBytesFromUrl(String urlStr) throws IOException {
+    public static byte[] getBytesFromUrl(String urlStr) throws IOException {
         InputStream is = getInputStreamFromUrl(urlStr);
         if (is == null) {
-            urlStr = URLUtil.normalize(urlStr, true, true);
             is = getInputStreamFromUrl(urlStr);
             if (is == null) {
                 logger.error("文件下载异常：url：{}", urlStr);
@@ -101,26 +91,27 @@ public class DownloadUtils {
         return getBytesFromStream(is);
     }
 
-    public void saveBytesToOutStream(byte[] b, OutputStream os) throws IOException {
+    public static void saveBytesToOutStream(byte[] b, OutputStream os) throws IOException {
         os.write(b);
         os.close();
     }
 
-    private InputStream getInputStreamFromUrl(String urlStr) {
+    private static InputStream getInputStreamFromUrl(String urlStr) {
         try {
-            URL url = new URL(urlStr);
+
+            URL url = io.mola.galimatias.URL.parse(urlStr).toJavaURL();
             URLConnection connection = url.openConnection();
             if (connection instanceof HttpURLConnection) {
                 connection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
             }
             return connection.getInputStream();
-        } catch (IOException e) {
+        } catch (IOException | GalimatiasParseException e) {
             logger.warn("连接url异常：url：{}", urlStr);
             return null;
         }
     }
 
-    private byte[] getBytesFromStream(InputStream is) throws IOException {
+    private static byte[] getBytesFromStream(InputStream is) throws IOException {
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         byte[] buffer = new byte[1024];
         int len;
@@ -139,7 +130,7 @@ public class DownloadUtils {
      *
      * @param filePath 文件路径
      */
-    private void convertTextPlainFileCharsetToUtf8(String filePath) throws IOException {
+    private static void convertTextPlainFileCharsetToUtf8(String filePath) throws IOException {
         File sourceFile = new File(filePath);
         if (sourceFile.exists() && sourceFile.isFile() && sourceFile.canRead()) {
             String encoding = FileUtils.getFileEncode(filePath);

server/src/main/java/cn/keking/utils/FileUtils.java

@@ -57,6 +57,16 @@ public class FileUtils {
         }
     }
 
+    /**
+     * 通过文件名获取文件后缀
+     * @param fileName 文件名称
+     * @return 文件后缀
+     */
+    public static String suffixFromFileName(String fileName) {
+        return fileName.substring(fileName.lastIndexOf(".") + 1);
+    }
+
+
     /**
      * 根据文件路径删除文件
      *

server/src/main/java/cn/keking/utils/PdfUtils.java

@@ -1,79 +0,0 @@
-package cn.keking.utils;
-
-import cn.keking.service.FileHandlerService;
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.rendering.ImageType;
-import org.apache.pdfbox.rendering.PDFRenderer;
-import org.apache.pdfbox.tools.imageio.ImageIOUtil;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Component;
-
-import java.awt.image.BufferedImage;
-import java.io.File;
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
-import java.util.ArrayList;
-import java.util.List;
-
-@Component
-public class PdfUtils {
-
-    private final Logger logger = LoggerFactory.getLogger(PdfUtils.class);
-
-    private final FileHandlerService fileHandlerService;
-
-    @Value("${server.tomcat.uri-encoding:UTF-8}")
-    private String uriEncoding;
-
-    public PdfUtils(FileHandlerService fileHandlerService) {
-        this.fileHandlerService = fileHandlerService;
-    }
-
-    public List<String> pdf2jpg(String pdfFilePath, String pdfName, String baseUrl) {
-        List<String> imageUrls = new ArrayList<>();
-        Integer imageCount = fileHandlerService.getConvertedPdfImage(pdfFilePath);
-        String imageFileSuffix = ".jpg";
-        String pdfFolder = pdfName.substring(0, pdfName.length() - 4);
-        String urlPrefix = null;
-        try {
-            urlPrefix = baseUrl + URLEncoder.encode(URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\\+", "%20"), uriEncoding);
-        } catch (UnsupportedEncodingException e) {
-            logger.error("UnsupportedEncodingException", e);
-            urlPrefix = baseUrl + pdfFolder;
-        }
-        if (imageCount != null && imageCount > 0) {
-            for (int i = 0; i < imageCount ; i++)
-            imageUrls.add(urlPrefix + "/" + i + imageFileSuffix);
-            return imageUrls;
-        }
-        try {
-            File pdfFile = new File(pdfFilePath);
-            PDDocument doc = PDDocument.load(pdfFile);
-            int pageCount = doc.getNumberOfPages();
-            PDFRenderer pdfRenderer = new PDFRenderer(doc);
-
-            int index = pdfFilePath.lastIndexOf(".");
-            String folder = pdfFilePath.substring(0, index);
-
-            File path = new File(folder);
-            if (!path.exists()) {
-                path.mkdirs();
-            }
-            String imageFilePath;
-            for (int pageIndex = 0; pageIndex < pageCount; pageIndex++) {
-                imageFilePath = folder + File.separator + pageIndex + imageFileSuffix;
-                BufferedImage image = pdfRenderer.renderImageWithDPI(pageIndex, 105, ImageType.RGB);
-                ImageIOUtil.writeImage(image, imageFilePath, 105);
-                imageUrls.add(urlPrefix + "/" + pageIndex + imageFileSuffix);
-            }
-            doc.close();
-            fileHandlerService.addConvertedPdfImage(pdfFilePath, pageCount);
-        } catch (IOException e) {
-            logger.error("Convert pdf to jpg exception, pdfFilePath：{}", pdfFilePath, e);
-        }
-        return imageUrls;
-    }
-}

server/src/main/java/cn/keking/utils/WebUtils.java

@@ -0,0 +1,86 @@
+package cn.keking.utils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @author : kl
+ * create : 2020-12-27 1:30 上午
+ **/
+public class WebUtils {
+    /**
+     * 获取url中的参数
+     *
+     * @param url  url
+     * @param name 参数名
+     * @return 参数值
+     */
+    public static String getUrlParameterReg(String url, String name) {
+        Map<String, String> mapRequest = new HashMap<>();
+        String strUrlParam = truncateUrlPage(url);
+        if (strUrlParam == null) {
+            return "";
+        }
+        //每个键值为一组
+        String[] arrSplit = strUrlParam.split("[&]");
+        for (String strSplit : arrSplit) {
+            String[] arrSplitEqual = strSplit.split("[=]");
+            //解析出键值
+            if (arrSplitEqual.length > 1) {
+                //正确解析
+                mapRequest.put(arrSplitEqual[0], arrSplitEqual[1]);
+            } else if (!arrSplitEqual[0].equals("")) {
+                //只有参数没有值，不加入
+                mapRequest.put(arrSplitEqual[0], "");
+            }
+        }
+        return mapRequest.get(name);
+    }
+
+
+    /**
+     * 去掉url中的路径，留下请求参数部分
+     *
+     * @param strURL url地址
+     * @return url请求参数部分
+     */
+    private static String truncateUrlPage(String strURL) {
+        String strAllParam = null;
+        strURL = strURL.trim();
+        String[] arrSplit = strURL.split("[?]");
+        if (strURL.length() > 1) {
+            if (arrSplit.length > 1) {
+                if (arrSplit[1] != null) {
+                    strAllParam = arrSplit[1];
+                }
+            }
+        }
+        return strAllParam;
+    }
+
+    /**
+     * 从url中剥离出文件名
+     *
+     * @param url 格式如：http://www.com.cn/20171113164107_月度绩效表模板(新).xls?UCloudPublicKey=ucloudtangshd@weifenf.com14355492830001993909323&Expires=&Signature=I D1NOFtAJSPT16E6imv6JWuq0k=
+     * @return 文件名
+     */
+    public static String getFileNameFromURL(String url) {
+        // 因为url的参数中可能会存在/的情况，所以直接url.lastIndexOf("/")会有问题
+        // 所以先从？处将url截断，然后运用url.lastIndexOf("/")获取文件名
+        String noQueryUrl = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
+        return noQueryUrl.substring(noQueryUrl.lastIndexOf("/") + 1);
+    }
+
+
+    /**
+     * 从url中获取文件后缀
+     *
+     * @param url url
+     * @return 文件后缀
+     */
+    public static String suffixFromUrl(String url) {
+        String nonPramStr = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
+        String fileName = nonPramStr.substring(nonPramStr.lastIndexOf("/") + 1);
+        return FileUtils.suffixFromFileName(fileName);
+    }
+}

server/src/main/java/cn/keking/web/controller/FileController.java

@@ -28,9 +28,7 @@ public class FileController {
     private final Logger logger = LoggerFactory.getLogger(FileController.class);
 
     private final String fileDir = ConfigConstants.getFileDir();
-
     private final String demoDir = "demo";
-
     private final String demoPath = demoDir + File.separator;
 
     @RequestMapping(value = "fileUpload", method = RequestMethod.POST)
@@ -49,19 +47,19 @@ public class FileController {
         }
         // 判断是否存在同名文件
         if (existsFile(fileName)) {
-            return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(1, "存在同名文件，请先删除原有文件再次上传", null));
+            return new ObjectMapper().writeValueAsString(ReturnResponse.failure("存在同名文件，请先删除原有文件再次上传"));
         }
         File outFile = new File(fileDir + demoPath);
-        if (!outFile.exists()) {
-            outFile.mkdirs();
+        if (!outFile.exists() && !outFile.mkdirs()) {
+            logger.error("创建文件夹【{}】失败，请检查目录权限！",fileDir + demoPath);
         }
         logger.info("上传文件：{}", fileDir + demoPath + fileName);
         try(InputStream in = file.getInputStream(); OutputStream out = new FileOutputStream(fileDir + demoPath + fileName)) {
             StreamUtils.copy(in, out);
-            return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(0, "SUCCESS", null));
+            return new ObjectMapper().writeValueAsString(ReturnResponse.success(null));
         } catch (IOException e) {
             logger.error("文件上传失败", e);
-            return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(1, "FAILURE", null));
+            return new ObjectMapper().writeValueAsString(ReturnResponse.failure());
         }
     }
 
@@ -72,10 +70,10 @@ public class FileController {
         }
         File file = new File(fileDir + demoPath + fileName);
         logger.info("删除文件：{}", file.getAbsolutePath());
-        if (file.exists()) {
-            file.delete();
+        if (file.exists() && !file.delete()) {
+           logger.error("删除文件【{}】失败，请检查目录权限！",file.getPath());
         }
-        return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(0, "SUCCESS", null));
+        return new ObjectMapper().writeValueAsString(ReturnResponse.success());
     }
 
     @RequestMapping(value = "listFiles", method = RequestMethod.GET)
@@ -84,7 +82,7 @@ public class FileController {
         File file = new File(fileDir + demoPath);
         if (file.exists()) {
             Arrays.stream(Objects.requireNonNull(file.listFiles())).forEach(file1 -> {
-                Map<String, String> fileName = new HashMap();
+                Map<String, String> fileName = new HashMap<>();
                 fileName.put("fileName", demoDir + "/" + file1.getName());
                 list.add(fileName);
             });

server/src/main/java/cn/keking/web/controller/OnlinePreviewController.java

@@ -5,12 +5,15 @@ import cn.keking.service.FilePreview;
 import cn.keking.service.FilePreviewFactory;
 
 import cn.keking.service.cache.CacheService;
+import cn.keking.service.impl.OtherFilePreviewImpl;
 import cn.keking.utils.DownloadUtils;
 import cn.keking.service.FileHandlerService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.util.Base64Utils;
+import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -18,68 +21,85 @@ import org.springframework.web.bind.annotation.ResponseBody;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.*;
-import java.net.URLDecoder;
 import java.util.Arrays;
 import java.util.List;
 
+import static cn.keking.service.FilePreview.PICTURE_FILE_PREVIEW_PAGE;
+
 /**
  * @author yudian-it
  */
 @Controller
 public class OnlinePreviewController {
 
+    public static final String BASE64_DECODE_ERROR_MSG = "Base64解码失败，请检查你的 %s 是否采用 Base64 + urlEncode 双重编码了！";
     private final Logger logger = LoggerFactory.getLogger(OnlinePreviewController.class);
 
     private final FilePreviewFactory previewFactory;
     private final CacheService cacheService;
     private final FileHandlerService fileHandlerService;
-    private final DownloadUtils downloadUtils;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService, DownloadUtils downloadUtils) {
+    public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService, OtherFilePreviewImpl otherFilePreview) {
         this.previewFactory = filePreviewFactory;
         this.fileHandlerService = fileHandlerService;
         this.cacheService = cacheService;
-        this.downloadUtils = downloadUtils;
+        this.otherFilePreview = otherFilePreview;
     }
 
-
     @RequestMapping(value = "/onlinePreview")
     public String onlinePreview(String url, Model model, HttpServletRequest req) {
-        FileAttribute fileAttribute = fileHandlerService.getFileAttribute(url,req);
+        String fileUrl;
+        try {
+            fileUrl = new String(Base64Utils.decodeFromString(url));
+        } catch (Exception ex) {
+            String errorMsg = String.format(BASE64_DECODE_ERROR_MSG, "url");
+            return otherFilePreview.notSupportedFile(model, errorMsg);
+        }
+        FileAttribute fileAttribute = fileHandlerService.getFileAttribute(fileUrl, req);
         FilePreview filePreview = previewFactory.get(fileAttribute);
-        logger.info("预览文件url：{}，previewType：{}", url, fileAttribute.getType());
-        return filePreview.filePreviewHandle(url, model, fileAttribute);
+        logger.info("预览文件url：{}，previewType：{}", fileUrl, fileAttribute.getType());
+        return filePreview.filePreviewHandle(fileUrl, model, fileAttribute);
     }
 
     @RequestMapping(value = "/picturesPreview")
-    public String picturesPreview(Model model, HttpServletRequest req) throws UnsupportedEncodingException {
-        String urls = req.getParameter("urls");
-        String currentUrl = req.getParameter("currentUrl");
-        logger.info("预览文件url：{}，urls：{}", currentUrl, urls);
-        // 路径转码
-        String decodedUrl = URLDecoder.decode(urls, "utf-8");
-        String decodedCurrentUrl = URLDecoder.decode(currentUrl, "utf-8");
+    public String picturesPreview(String urls, Model model, HttpServletRequest req) throws UnsupportedEncodingException {
+        String fileUrls;
+        try {
+            fileUrls = new String(Base64Utils.decodeFromString(urls));
+        } catch (Exception ex) {
+            String errorMsg = String.format(BASE64_DECODE_ERROR_MSG, "urls");
+            return otherFilePreview.notSupportedFile(model, errorMsg);
+        }
+        logger.info("预览文件url：{}，urls：{}", fileUrls, urls);
         // 抽取文件并返回文件列表
-        String[] imgs = decodedUrl.split("\\|");
-        List<String> imgUrls = Arrays.asList(imgs);
+        String[] images = fileUrls.split("\\|");
+        List<String> imgUrls = Arrays.asList(images);
         model.addAttribute("imgUrls", imgUrls);
-        model.addAttribute("currentUrl",decodedCurrentUrl);
-        return "picture";
+
+        String currentUrl = req.getParameter("currentUrl");
+        if (StringUtils.hasText(currentUrl)) {
+            String decodedCurrentUrl = new String(Base64Utils.decodeFromString(currentUrl));
+            model.addAttribute("currentUrl", decodedCurrentUrl);
+        } else {
+            model.addAttribute("currentUrl", imgUrls.get(0));
+        }
+        return PICTURE_FILE_PREVIEW_PAGE;
     }
 
     /**
      * 根据url获取文件内容
      * 当pdfjs读取存在跨域问题的文件时将通过此接口读取
      *
-     * @param urlPath url
+     * @param urlPath  url
      * @param response response
      */
     @RequestMapping(value = "/getCorsFile", method = RequestMethod.GET)
     public void getCorsFile(String urlPath, HttpServletResponse response) {
         logger.info("下载跨域pdf文件url：{}", urlPath);
         try {
-            byte[] bytes = downloadUtils.getBytesFromUrl(urlPath);
-            downloadUtils.saveBytesToOutStream(bytes, response.getOutputStream());
+            byte[] bytes = DownloadUtils.getBytesFromUrl(urlPath);
+            DownloadUtils.saveBytesToOutStream(bytes, response.getOutputStream());
         } catch (IOException e) {
             logger.error("下载跨域pdf文件异常，url：{}", urlPath, e);
         }
@@ -87,6 +107,7 @@ public class OnlinePreviewController {
 
     /**
      * 通过api接口入队
+     *
      * @param url 请编码后在入队
      */
     @RequestMapping("/addTask")

server/src/main/java/cn/keking/web/filter/BaseUrlFilter.java

@@ -38,7 +38,7 @@ public class BaseUrlFilter implements Filter {
         pathBuilder.append(request.getScheme()).append("://").append(request.getServerName()).append(":")
                 .append(request.getServerPort()).append(((HttpServletRequest) request).getContextPath()).append("/");
         String baseUrlTmp = ConfigConstants.getBaseUrl();
-        if (baseUrlTmp != null && !ConfigConstants.DEFAULT_BASE_URL.equals(baseUrlTmp.toLowerCase())) {
+        if (baseUrlTmp != null && !ConfigConstants.DEFAULT_BASE_URL.equalsIgnoreCase(baseUrlTmp)) {
             if (!baseUrlTmp.endsWith("/")) {
                 baseUrlTmp = baseUrlTmp.concat("/");
             }

server/src/main/log/README.txt

@@ -0,0 +1,7 @@
+README.txt
+log目录是用来存放kkFileView.log的，预览服务的运行情况最终都会反映到这个日志文件里，
+可以提供给开发、运维排查系统问题。如果通过kkFileView.log还无法定位问题所在，请你在寻求
+kk官方支持时，QQ群一 613025121、QQ群二 484680571。将此日志文件一并携带，并按照这个
+格式重命名日志文件 kkFileView-QQ昵称-时间日期.log。如：kkFileView-kl博主-2020-12-27.log 。
+所有收集的日志文件我们都会存档，供所有的kk用户作为排查案例使用，所以在你提供日志前，请
+先自行处理日志文件里的业务敏感内容。

server/src/main/resources/web/compress.ftl

@@ -23,9 +23,6 @@
         h6 {font-weight: normal;font-size: 12px;letter-spacing: 1px;line-height: 24px;text-align: center;}
         a {color:#3C6E31;text-decoration: underline;}
         a:hover {background-color:#3C6E31;color:white;}
-        input.radio {margin: 0 2px 0 8px;}
-        input.radio.first {margin-left:0;}
-        input.empty {color: lightgray;}
         code {color: #2f332a;}
         div.zTreeDemoBackground {width:600px;text-align:center;margin: 0 auto;background-color: #ffffff;}
     </style>
@@ -38,8 +35,11 @@
 <script src="js/watermark.js" type="text/javascript"></script>
 <script type="text/javascript" src="js/jquery-3.0.0.min.js"></script>
 <script type="text/javascript" src="js/jquery.ztree.core.js"></script>
+<script type="text/javascript" src="js/base64.min.js" ></script>
+
 <script type="text/javascript">
-    var data = JSON.parse('${fileTree}');
+    const data = JSON.parse('${fileTree}');
+    var baseUrl = "${baseUrl}";
     var setting = {
         view: {
             fontCss : {"color":"blue"},
@@ -71,8 +71,8 @@
                     } else {
                         fulls += ",resizable"; // 对于不支持screen属性的浏览器，可以手工进行最大化。 manually
                     }
-                    window.open("onlinePreview?url="
-                            + encodeURIComponent("${baseUrl}" + treeNode.fileName)+"&fileKey="+ encodeURIComponent(treeNode.fileKey), "_blank",fulls);
+                    var previewUrl = baseUrl + treeNode.fileName +"?fileKey="+ treeNode.fileKey;
+                    window.open("onlinePreview?url=" + encodeURIComponent(Base64.encode(previewUrl)), "_blank",fulls);
                 }
             }
         }

server/src/main/resources/web/index.ftl

@@ -2,50 +2,49 @@
 
 <html lang="en">
 <head>
-    <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1.0" />
+    <meta charset="utf-8"/>
+    <meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1.0"/>
     <title>kkFileView演示首页</title>
-    <link rel="stylesheet" href="css/viewer.min.css" />
-    <link rel="stylesheet" href="css/loading.css" />
-    <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css" />
-    <link rel="stylesheet" href="bootstrap-table/bootstrap-table.min.css" />
-    <link rel="stylesheet" href="gitalk/gitalk.css" />
+    <link rel="stylesheet" href="css/viewer.min.css"/>
+    <link rel="stylesheet" href="css/loading.css"/>
+    <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css"/>
+    <link rel="stylesheet" href="bootstrap-table/bootstrap-table.min.css"/>
+    <link rel="stylesheet" href="gitalk/gitalk.css"/>
     <script type="text/javascript" src="js/jquery-3.0.0.min.js"></script>
     <script type="text/javascript" src="js/jquery.form.min.js"></script>
     <script type="text/javascript" src="bootstrap/js/bootstrap.min.js"></script>
     <script type="text/javascript" src="bootstrap-table/bootstrap-table.min.js"></script>
     <script type="text/javascript" src="gitalk/gitalk.min.js"></script>
+    <script type="text/javascript" src="js/base64.min.js"></script>
 </head>
 
 <body>
-<h1>文件预览项目接入和测试界面</h1>
-<div class="panel-group" id="accordion">
+<div class="panel-group container" id="accordion">
+    <h1>文件预览项目接入和测试界面</h1>
+
     <div class="panel panel-default">
         <div class="panel-heading">
             <h4 class="panel-title">
-                <a data-toggle="collapse" data-parent="#accordion"
-                   href="#collapseOne">
+                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
                     接入说明
                 </a>
             </h4>
         </div>
-        <div id="collapseOne" class="panel-collapse collapse">
-            <div class="panel-body">
-                <div>
-                    如果你的项目需要接入文件预览项目，达到对docx、excel、ppt、jpg等文件的预览效果，那么通过在你的项目中加入下面的代码就可以
-                    成功实现：
-                    <pre style="background-color: #2f332a;color: #cccccc">
-var url = 'http://127.0.0.1:8080/file/test.txt'; //要预览文件的访问地址
-window.open('http://127.0.0.1:8012/onlinePreview?url='+encodeURIComponent(url));
-                    </pre>
-                </div>
-                <div>
-                    新增多图片同时预览功能，接口如下：
-                    <pre style="background-color: #2f332a;color: #cccccc">
-var fileUrl =url1+"|"+"url2";//多文件使用“|”字符隔开
-window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fileUrl));
-                    </pre>
-                </div>
+        <div class="panel-body">
+            <div>
+                如果你的项目需要接入文件预览项目，达到对docx、excel、ppt、jpg等文件的预览效果，那么通过在你的项目中加入下面的代码就可以
+                成功实现：
+                <pre style="background-color: #2f332a;color: #cccccc">
+                    var url = 'http://127.0.0.1:8080/file/test.txt'; //要预览文件的访问地址
+                    window.open('http://127.0.0.1:8012/onlinePreview?url='+encodeURIComponent(base64Encode(url)));
+                </pre>
+            </div>
+            <div>
+                新增多图片同时预览功能，接口如下：
+                <pre style="background-color: #2f332a;color: #cccccc">
+                    var fileUrl =url1+"|"+"url2";//多文件使用“|”字符隔开
+                    window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(base64Encode(fileUrl)));
+                </pre>
             </div>
         </div>
     </div>
@@ -58,86 +57,100 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fil
                 </a>
             </h4>
         </div>
-        <div id="collapseTwo" class="panel-collapse collapse">
-            <div class="panel-body">
-                <div style="padding: 10px">
-                    <form enctype="multipart/form-data" id="fileUpload">
-                        <input type="file" name="file" />
-                        <input type="button" id="btnsubmit" value=" 上 传 " />
-                    </form>
-                </div>
-                <div>
-                    <table id="table" data-pagination="true"></table>
-                </div>
+        <div class="panel-body">
+            <div style="padding: 10px">
+                <form enctype="multipart/form-data" id="fileUpload">
+                    <input type="file" name="file"/>
+                    <input type="button" id="btnubmit" value=" 上 传 "/>
+                </form>
+            </div>
+            <div>
+                <table id="table" data-pagination="true"></table>
             </div>
         </div>
     </div>
     <div class="panel panel-default">
         <div class="panel-heading">
             <h4 class="panel-title">
-                <a data-toggle="collapse" data-parent="#accordion"
-                   href="#collapseThree">
-                    更新记录
+                <a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
+                    发版记录
                 </a>
             </h4>
         </div>
-        <div id="collapseThree" class="panel-collapse collapse in">
-            <div class="panel-body">
-                <div>
-                    2020年05月20日 ：<br>
-                        1. 新增支持全局水印，并支持通过参数动态改变水印内容<br>
-                        2. 新增支持CAD文件预览<br>
-                        3. 新增base.url配置，支持使用nginx反向代理和使用context-path<br>
-                        4. 支持所有配置项支持从环境变量里读取，方便Docker镜像部署和集群中大规模使用<br>
-                        5. 支持配置限信任站点（只能预览来自信任点的文件源），保护预览服务不被滥用<br>
-                        6. 支持配置自定义缓存清理时间（cron表达式）<br>
-                        7. 全部能识别的纯文本直接预览，不用再转跳下载，如.md .java .py等<br>
-                        8. 支持配置限制转换后的PDF文件下载<br>
-                        9. 优化maven打包配置，解决 .sh 脚本可能出现换行符问题<br>
-                        10. 将前端所有CDN依赖放到本地，方便没有外网连接的用户使用<br>
-                        11. 首页评论服务由搜狐畅言切换到Gitalk<br>
-                        12. 修复url中包含特殊字符可能会引起的预览异常<br>
-                        13. 修复转换文件队列addTask异常<br>
-                        14. 修复其他已经问题<br>
-                        15. 官网建设：<a href="https://kkfileview.keking.cn">https://kkfileview.keking.cn</a><br>
-                        16. 官方Docker镜像仓库建设：<a href="https://hub.docker.com/r/keking/kkfileview">https://hub.docker.com/r/keking/kkfileview</a><br><br>
+        <div class="panel-body">
+            <div>
+                2020年12月27日 ：<br>
+                2020年年终大版本更新，架构全面设计，代码全面重构，代码质量全面提升，二次开发更便捷，欢迎拉源码品鉴，提issue、pr共同建设<br>
+                1. 架构模块调整,大量的代码重构，代码质量提升N个等级，欢迎品鉴<br>
+                2. 增强XML文件预览效果，新增XML文档数结构预览<br>
+                3. 新增markdown文件预览支持，预览支持md渲染和源文本切换支持<br>
+                4. 切换底层web server为jetty，解决这个issue：<a href="https://github.com/kekingcn/kkFileView/issues/168">#issues/168</a><br>
+                5. 引入cpdetector，解决文件编码识别问题<br>
+                6. url采用base64+urlencode双编码，彻底解决各种奇葩文件名预览问题<br>
+                7. 新增配置项office.preview.switch.disabled，控制offic文件预览切换开关<br>
+                8. 优化文本类型文件预览逻辑，采用Base64传输内容，避免预览时再次请求文件内容<br>
+                9. office预览图片模式禁用图片放大效果，达到图片和pdf预览效果一致的体验<br>
+                10. 直接代码静态设置pdfbox兼容低版本jdk，在IDEA中运行也不会有警告提示<br>
+                11. 移除guava、hutool等非必须的工具包，减少代码体积<br>
+                12. Office组件加载异步化，提速应用启动速度最快到5秒内<br>
+                13. 合理设置预览消费队列的线程数<br>
+                14. 修复压缩包里文件再次预览失败的bug<br>
+                15. 修复图片预览的bug<br><br>
 
-                    2019年06月18日 ：<br>
-                        1. 支持自动清理缓存及预览文件<br>
-                        2. 支持http/https下载流url文件预览<br>
-                        3. 支持FTP url文件预览<br>
-                        4. 加入Docker构建<br><br>
+                2020年05月20日 ：<br>
+                1. 新增支持全局水印，并支持通过参数动态改变水印内容<br>
+                2. 新增支持CAD文件预览<br>
+                3. 新增base.url配置，支持使用nginx反向代理和使用context-path<br>
+                4. 支持所有配置项支持从环境变量里读取，方便Docker镜像部署和集群中大规模使用<br>
+                5. 支持配置限信任站点（只能预览来自信任点的文件源），保护预览服务不被滥用<br>
+                6. 支持配置自定义缓存清理时间（cron表达式）<br>
+                7. 全部能识别的纯文本直接预览，不用再转跳下载，如.md .java .py等<br>
+                8. 支持配置限制转换后的PDF文件下载<br>
+                9. 优化maven打包配置，解决 .sh 脚本可能出现换行符问题<br>
+                10. 将前端所有CDN依赖放到本地，方便没有外网连接的用户使用<br>
+                11. 首页评论服务由搜狐畅言切换到Gitalk<br>
+                12. 修复url中包含特殊字符可能会引起的预览异常<br>
+                13. 修复转换文件队列addTask异常<br>
+                14. 修复其他已经问题<br>
+                15. 官网建设：<a href="https://kkfileview.keking.cn">https://kkfileview.keking.cn</a><br>
+                16. 官方Docker镜像仓库建设：<a href="https://hub.docker.com/r/keking/kkfileview">https://hub.docker.com/r/keking/kkfileview</a><br><br>
 
-                    2019年04月08日 ：<br>
-                        1. 缓存及队列实现抽象，提供JDK和REDIS两种实现(REDIS成为可选依赖)<br>
-                        2. 打包方式提供zip和tar.gz包，并提供一键启动脚本<br><br>
+                2019年06月18日 ：<br>
+                1. 支持自动清理缓存及预览文件<br>
+                2. 支持http/https下载流url文件预览<br>
+                3. 支持FTP url文件预览<br>
+                4. 加入Docker构建<br><br>
 
-                    2018年01月19日 ：<br>
-                        1. 大文件入队提前处理<br>
-                        1. 新增addTask文件转换入队接口<br>
-                        1. 采用redis队列，支持kkFIleView接口和异构系统入队两种方式<br><br>
+                2019年04月08日 ：<br>
+                1. 缓存及队列实现抽象，提供JDK和REDIS两种实现(REDIS成为可选依赖)<br>
+                2. 打包方式提供zip和tar.gz包，并提供一键启动脚本<br><br>
 
-                    2018年01月15日 ：<br>
-                        1.首页新增社会化评论框<br><br>
+                2018年01月19日 ：<br>
+                1. 大文件入队提前处理<br>
+                1. 新增addTask文件转换入队接口<br>
+                1. 采用redis队列，支持kkFIleView接口和异构系统入队两种方式<br><br>
 
-                    2018年01月12日 ：<br>
-                        1.新增多图片同时预览<br>
-                        2.支持压缩包内图片轮番预览<br><br>
+                2018年01月15日 ：<br>
+                1.首页新增社会化评论框<br><br>
 
-                    2018年01月02日 ：<br>
-                        1.修复txt等文本编码问题导致预览乱码<br>
-                        2.修复项目模块依赖引入不到的问题<br>
-                        3.新增spring boot profile，支持多环境配置<br>
-                        4.引入pdf.js预览doc等文件，支持doc标题生成pdf预览菜单，支持手机端预览<br><br>
+                2018年01月12日 ：<br>
+                1.新增多图片同时预览<br>
+                2.支持压缩包内图片轮番预览<br><br>
 
-                    2017年12月12日：<br>
-                        1.项目gitee开源:<a href="https://gitee.com/kekingcn/file-online-preview" target="_blank">https://gitee.com/kekingcn/file-online-preview</a><br>
-                        2.项目github开源:<a href="https://github.com/kekingcn/kkFileView" target="_blank">https://github.com/kekingcn/kkFileView</a>
-                </div>
+                2018年01月02日 ：<br>
+                1.修复txt等文本编码问题导致预览乱码<br>
+                2.修复项目模块依赖引入不到的问题<br>
+                3.新增spring boot profile，支持多环境配置<br>
+                4.引入pdf.js预览doc等文件，支持doc标题生成pdf预览菜单，支持手机端预览<br><br>
+
+                2017年12月12日：<br>
+                1.项目gitee开源:<a href="https://gitee.com/kekingcn/file-online-preview" target="_blank">https://gitee.com/kekingcn/file-online-preview</a><br>
+                2.项目github开源:<a href="https://github.com/kekingcn/kkFileView" target="_blank">https://github.com/kekingcn/kkFileView</a>
             </div>
         </div>
+
         <div class="panel-body">
-            <div id = "comments"></div>
+            <div id="comments"></div>
         </div>
 
     </div>
@@ -171,9 +184,9 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fil
             url: '${baseUrl}deleteFile?fileName=' + encodeURIComponent(fileName),
             success: function (data) {
                 // 删除完成，刷新table
-                if (1 == data.code) {
+                if (1 === data.code) {
                     alert(data.msg);
-                } else{
+                } else {
                     $('#table').bootstrapTable('refresh', {});
                 }
             },
@@ -182,6 +195,7 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fil
             }
         })
     }
+
     $(function () {
         $('#table').bootstrapTable({
             url: 'listFiles',
@@ -192,14 +206,14 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fil
                 field: 'action',
                 title: '操作'
             },]
-        }).on('pre-body.bs.table', function (e,data) {
+        }).on('pre-body.bs.table', function (e, data) {
             // 每个data添加一列用来操作
             $(data).each(function (index, item) {
-                item.action = "<a class='btn btn-default' target='_blank' href='${baseUrl}onlinePreview?url="+ encodeURIComponent('${baseUrl}' + item.fileName) +"'>预览</a>" +
-                    "<a class='btn btn-default' href='javascript:void(0);' onclick='deleteFile(\""+item.fileName+"\")'>删除</a>";
+                item.action = "<a class='btn btn-default' target='_blank' href='${baseUrl}onlinePreview?url=" + encodeURIComponent(Base64.encode('${baseUrl}' + item.fileName)) + "'>预览</a>" +
+                    "<a class='btn btn-default' href='javascript:void(0);' onclick='deleteFile(\"" + item.fileName + "\")'>删除</a>";
             });
             return data;
-        }).on('post-body.bs.table', function (e,data) {
+        }).on('post-body.bs.table', function (e, data) {
             return data;
         });
 
@@ -209,12 +223,12 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fil
             $(".loading_container").css("height", height).show();
         }
 
-        $("#btnsubmit").click(function () {
+        $("#btnSubmit").click(function () {
             showLoadingDiv();
             $("#fileUpload").ajaxSubmit({
                 success: function (data) {
                     // 上传完成，刷新table
-                    if (1 == data.code) {
+                    if (1 === data.code) {
                         alert(data.msg);
                     } else {
                         $('#table').bootstrapTable('refresh', {});