采用apache-common-io包简化所有的文件下载io操作

.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="file" type="cn.keking.model.FileAttribute" --]
+[#-- @ftlvariable name="fileName" type="java.lang.String" --]
 [#-- @ftlvariable name="fileTree" type="java.lang.String" --]
 [#-- @ftlvariable name="baseUrl" type="java.lang.String" --]
 [#-- @ftlvariable name="imgUrls" type="String" --]

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

@@ -1,7 +1,7 @@
 package cn.keking.config;
 
 import cn.keking.service.cache.CacheService;
-import cn.keking.utils.FileUtils;
+import cn.keking.utils.KkFileUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
@@ -31,7 +31,7 @@ public class SchedulerCleanConfig {
     public void clean() {
         logger.info("Cache clean start");
         cacheService.cleanCache();
-        FileUtils.deleteDirectory(fileDir);
+        KkFileUtils.deleteDirectory(fileDir);
         logger.info("Cache clean end");
     }
 }

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) {
@@ -48,6 +50,8 @@ 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);
+
     }
 
     private static FileType to(String fileType){

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

@@ -2,7 +2,7 @@ package cn.keking.service;
 
 import cn.keking.config.ConfigConstants;
 import cn.keking.model.FileType;
-import cn.keking.utils.FileUtils;
+import cn.keking.utils.KkFileUtils;
 import cn.keking.web.filter.BaseUrlFilter;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -48,7 +48,7 @@ public class CompressFileReader {
         String baseUrl = BaseUrlFilter.getBaseUrl();
         String archiveFileName = fileHandlerService.getFileNameFromPath(filePath);
         try {
-            ZipFile zipFile = new ZipFile(filePath, FileUtils.getFileEncode(filePath));
+            ZipFile zipFile = new ZipFile(filePath, KkFileUtils.getFileEncode(filePath));
             Enumeration<ZipArchiveEntry> entries = zipFile.getEntries();
             // 排序
             entries = sortZipEntries(entries);
@@ -382,7 +382,7 @@ public class CompressFileReader {
             } catch (IOException e) {
                 e.printStackTrace();
             }
-            FileUtils.deleteFileByPath(filePath);
+            KkFileUtils.deleteFileByPath(filePath);
         }
 
         private void extractZipFile(String childName, InputStream zipFile) {
@@ -439,7 +439,7 @@ public class CompressFileReader {
             } catch (IOException e) {
                 e.printStackTrace();
             }
-            FileUtils.deleteFileByPath(filePath);
+            KkFileUtils.deleteFileByPath(filePath);
         }
     }
 
@@ -468,7 +468,7 @@ public class CompressFileReader {
             } catch (IOException e) {
                 e.printStackTrace();
             }
-            FileUtils.deleteFileByPath(filePath);
+            KkFileUtils.deleteFileByPath(filePath);
         }
 
         private void extractRarFile(String childName, FileHeader header, Archive archive) {

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

@@ -4,7 +4,7 @@ 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.KkFileUtils;
 import cn.keking.utils.WebUtils;
 import com.aspose.cad.Color;
 import com.aspose.cad.fileformats.cad.CadDrawTypeMode;
@@ -263,7 +263,7 @@ public class FileHandlerService {
         if (StringUtils.hasText(fullFileName)) {
             fileName = fullFileName;
             type = FileType.typeFromFileName(fullFileName);
-            suffix = FileUtils.suffixFromFileName(fullFileName);
+            suffix = KkFileUtils.suffixFromFileName(fullFileName);
         } else {
             fileName = WebUtils.getFileNameFromURL(url);
             type = FileType.typeFromUrl(url);

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

@@ -8,5 +8,18 @@ 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 XML_FILE_PREVIEW_PAGE = "xml";
+    String MARKDOWN_FILE_PREVIEW_PAGE = "markdown";
+    String NOT_SUPPORTED_FILE_PAGE = "fileNotSupported";
+
     String filePreviewHandle(String url, Model model, FileAttribute fileAttribute);
 }

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

@@ -25,9 +25,11 @@ public class CadFilePreviewImpl implements FilePreview {
     private static final String FILE_DIR = ConfigConstants.getFileDir();
 
     private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public CadFilePreviewImpl(FileHandlerService fileHandlerService) {
+    public CadFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -35,7 +37,6 @@ public class CadFilePreviewImpl implements FilePreview {
         // 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 pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
         String outFilePath = FILE_DIR + pdfName;
@@ -44,17 +45,13 @@ public class CadFilePreviewImpl implements FilePreview {
             String filePath;
             ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
             if (response.isFailure()) {
-                model.addAttribute("fileType", suffix);
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             }
             filePath = response.getContent();
             if (StringUtils.hasText(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
@@ -63,10 +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, fileHandlerService, 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

@@ -20,10 +20,12 @@ public class CompressFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
     private final CompressFileReader compressFileReader;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public CompressFilePreviewImpl(FileHandlerService fileHandlerService, CompressFileReader compressFileReader) {
+    public CompressFilePreviewImpl(FileHandlerService fileHandlerService, CompressFileReader compressFileReader, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
         this.compressFileReader = compressFileReader;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -35,9 +37,7 @@ public class CompressFilePreviewImpl implements FilePreview {
         if (!StringUtils.hasText(fileHandlerService.getConvertedFile(fileName))  || !ConfigConstants.isCacheEnabled()) {
             ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
             if (response.isFailure()) {
-                model.addAttribute("fileType", suffix);
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             }
             String filePath = response.getContent();
             if ("zip".equalsIgnoreCase(suffix) || "jar".equalsIgnoreCase(suffix) || "gzip".equalsIgnoreCase(suffix)) {
@@ -55,11 +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

@@ -5,8 +5,6 @@ import cn.keking.service.FilePreview;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
 
-import static com.sun.glass.ui.Clipboard.TEXT_TYPE;
-
 /**
  * @author kl (http://kailing.pub)
  * @since 2020/12/25
@@ -23,7 +21,7 @@ public class MarkdownFilePreviewImpl implements FilePreview {
 
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
-        model.addAttribute(TEXT_TYPE,"markdown");
-        return simTextFilePreview.filePreviewHandle(url, model, fileAttribute);
+         simTextFilePreview.filePreviewHandle(url, model, fileAttribute);
+         return MARKDOWN_FILE_PREVIEW_PAGE;
     }
 }

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

@@ -19,9 +19,11 @@ import org.springframework.ui.Model;
 public class MediaFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public MediaFilePreviewImpl(FileHandlerService fileHandlerService) {
+    public MediaFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -29,10 +31,8 @@ public class MediaFilePreviewImpl 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, fileAttribute.getName());
-            if (!response.isSuccess()) {
-                model.addAttribute("fileType", fileAttribute.getSuffix());
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+            if (response.isFailure()) {
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             } else {
                 model.addAttribute("mediaUrl", BaseUrlFilter.getBaseUrl() + fileHandlerService.getRelativePath(response.getContent()));
             }
@@ -40,11 +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

@@ -27,10 +27,12 @@ public class OfficeFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
     private final OfficeToPdfService officeToPdfService;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, OfficeToPdfService officeToPdfService) {
+    public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, OfficeToPdfService officeToPdfService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
         this.officeToPdfService = officeToPdfService;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -38,8 +40,8 @@ public class OfficeFilePreviewImpl implements FilePreview {
         // 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;
@@ -48,9 +50,7 @@ public class OfficeFilePreviewImpl implements FilePreview {
             String filePath;
             ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
             if (response.isFailure()) {
-                model.addAttribute("fileType", suffix);
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+                return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
             }
             filePath = response.getContent();
             if (StringUtils.hasText(outFilePath)) {
@@ -66,25 +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, fileHandlerService, 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, FileHandlerService fileHandlerService, String officePreviewTypeImage) {
+    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

@@ -20,16 +20,17 @@ import java.util.List;
 public class PdfFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
     private static final String FILE_DIR = ConfigConstants.getFileDir();
 
-    public PdfFilePreviewImpl(FileHandlerService fileHandlerService) {
+    public PdfFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
+        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";
@@ -39,9 +40,7 @@ public class PdfFilePreviewImpl implements FilePreview {
             if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
                 ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
                 if (response.isFailure()) {
-                    model.addAttribute("fileType", suffix);
-                    model.addAttribute("msg", response.getMsg());
-                    return "fileNotSupported";
+                    return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
                 }
                 outFilePath = response.getContent();
                 if (ConfigConstants.isCacheEnabled()) {
@@ -51,16 +50,14 @@ public class PdfFilePreviewImpl implements FilePreview {
             }
             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
@@ -68,9 +65,7 @@ public class PdfFilePreviewImpl implements FilePreview {
                 if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
                     ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, pdfName);
                     if (response.isFailure()) {
-                        model.addAttribute("fileType", suffix);
-                        model.addAttribute("msg", response.getMsg());
-                        return "fileNotSupported";
+                        return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
                     }
                     model.addAttribute("pdfUrl", fileHandlerService.getRelativePath(response.getContent()));
                     if (ConfigConstants.isCacheEnabled()) {
@@ -84,6 +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

@@ -19,9 +19,11 @@ import java.util.List;
 public class PictureFilePreviewImpl implements FilePreview {
 
     private final FileHandlerService fileHandlerService;
+    private final OtherFilePreviewImpl otherFilePreview;
 
-    public PictureFilePreviewImpl(FileHandlerService fileHandlerService) {
+    public PictureFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
         this.fileHandlerService = fileHandlerService;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @Override
@@ -37,20 +39,18 @@ public class PictureFilePreviewImpl implements FilePreview {
         if (url != null && !url.toLowerCase().startsWith("http")) {
             ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
             if (response.isFailure()) {
-                model.addAttribute("fileType", fileAttribute.getSuffix());
-                model.addAttribute("msg", response.getMsg());
-                return "fileNotSupported";
+                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

@@ -4,6 +4,7 @@ import cn.keking.model.FileAttribute;
 import cn.keking.model.ReturnResponse;
 import cn.keking.service.FilePreview;
 import cn.keking.utils.DownloadUtils;
+import cn.keking.utils.KkFileUtils;
 import org.apache.commons.io.FileUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
@@ -11,7 +12,6 @@ import org.springframework.util.Base64Utils;
 
 import java.io.File;
 import java.io.IOException;
-import java.nio.charset.StandardCharsets;
 
 /**
  * Created by kl on 2018/1/17.
@@ -20,31 +20,28 @@ import java.nio.charset.StandardCharsets;
 @Service
 public class SimTextFilePreviewImpl implements FilePreview {
 
-    public static final String TEXT_TYPE = "textType";
-    public static final String DEFAULT_TEXT_TYPE = "simText";
+    private final OtherFilePreviewImpl otherFilePreview;
+
+    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 (response.isFailure()) {
-            model.addAttribute("msg", response.getMsg());
-            model.addAttribute("fileType", fileAttribute.getSuffix());
-            return "fileNotSupported";
+            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()));
+            String charset = KkFileUtils.getFileEncode(originFile);
+            String xmlString = FileUtils.readFileToString(originFile, charset);
+            model.addAttribute("textData", Base64Utils.encodeToString(xmlString.getBytes(charset)));
         } 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

@@ -5,8 +5,6 @@ import cn.keking.service.FilePreview;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
 
-import static com.sun.glass.ui.Clipboard.TEXT_TYPE;
-
 /**
  * @author kl (http://kailing.pub)
  * @since 2020/12/25
@@ -20,10 +18,9 @@ public class XmlFilePreviewImpl implements FilePreview {
         this.simTextFilePreview = simTextFilePreview;
     }
 
-
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
-        model.addAttribute(TEXT_TYPE,"xml");
-        return simTextFilePreview.filePreviewHandle(url, model, fileAttribute);
+        simTextFilePreview.filePreviewHandle(url, model, fileAttribute);
+        return XML_FILE_PREVIEW_PAGE;
     }
 }

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

@@ -2,16 +2,19 @@ package cn.keking.utils;
 
 import cn.keking.config.ConfigConstants;
 import cn.keking.model.FileAttribute;
-import cn.keking.model.FileType;
 import cn.keking.model.ReturnResponse;
+import io.mola.galimatias.GalimatiasParseException;
+import org.apache.commons.io.FileUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.*;
 import java.net.*;
-import java.nio.charset.StandardCharsets;
 import java.util.UUID;
 
+import static cn.keking.utils.KkFileUtils.isFtpUrl;
+import static cn.keking.utils.KkFileUtils.isHttpUrl;
+
 /**
  * @author yudian-it
  */
@@ -30,42 +33,26 @@ public class DownloadUtils {
      */
     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!!!", "");
-        UUID uuid = UUID.randomUUID();
-        if (null == fileName) {
-            fileName = uuid + "." + type;
-        } else { // 文件后缀不一致时，以type为准(针对simText【将类txt文件转为txt】)
-            fileName = fileName.replace(fileName.substring(fileName.lastIndexOf(".") + 1), type);
-        }
-        String realPath = fileDir + fileName;
-        File dirFile = new File(fileDir);
-        if (!dirFile.exists() && !dirFile.mkdirs()) {
-            logger.error("创建目录【{}】失败,可能是权限不够，请检查", fileDir);
-        }
+        String realPath = DownloadUtils.getRelFilePath(fileName, fileAttribute);
         try {
-            URL url = new URL(urlStr);
-            if (url.getProtocol() != null && (url.getProtocol().toLowerCase().startsWith("file") || url.getProtocol().toLowerCase().startsWith("http"))) {
-                byte[] bytes = getBytesFromUrl(urlStr);
-                OutputStream os = new FileOutputStream(realPath);
-                saveBytesToOutStream(bytes, os);
-            } else if (url.getProtocol() != null && "ftp".equalsIgnoreCase(url.getProtocol())) {
+            URL url = WebUtils.normalizedURL(urlStr);
+            if (isHttpUrl(url)) {
+                File realFile = new File(realPath);
+                FileUtils.copyURLToFile(url, realFile);
+            } else if (isFtpUrl(url)) {
                 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);
-                response.setContent(null);
                 response.setMsg("url不能识别url" + urlStr);
             }
             response.setContent(realPath);
             response.setMsg(fileName);
-            if (FileType.simText.equals(fileAttribute.getType())) {
-                convertTextPlainFileCharsetToUtf8(realPath);
-            }
             return response;
-        } catch (IOException e) {
+        } catch (IOException | GalimatiasParseException e) {
             logger.error("文件下载失败，url：{}", urlStr, e);
             response.setCode(1);
             response.setContent(null);
@@ -78,82 +65,27 @@ public class DownloadUtils {
         }
     }
 
-    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);
-                throw new IOException("文件下载异常：url：" + urlStr);
-            }
-        }
-        return getBytesFromStream(is);
-    }
-
-    public static void saveBytesToOutStream(byte[] b, OutputStream os) throws IOException {
-        os.write(b);
-        os.close();
-    }
-
-    private static InputStream getInputStreamFromUrl(String urlStr) {
-        try {
-            URL url = new URL(urlStr);
-            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) {
-            logger.warn("连接url异常：url：{}", urlStr);
-            return null;
-        }
-    }
-
-    private static byte[] getBytesFromStream(InputStream is) throws IOException {
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        byte[] buffer = new byte[1024];
-        int len;
-        while ((len = is.read(buffer)) != -1) {
-            baos.write(buffer, 0, len);
-        }
-        byte[] b = baos.toByteArray();
-        is.close();
-        baos.close();
-        return b;
-    }
 
     /**
-     * 转换文本文件编码为utf8
-     * 探测源文件编码,探测到编码切不为utf8则进行转码
+     * 获取真实文件绝对路径
      *
-     * @param filePath 文件路径
+     * @param fileName 文件名
+     * @return 文件路径
      */
-    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);
-            if (!FileUtils.DEFAULT_FILE_ENCODING.equals(encoding)) {
-                // 不为utf8,进行转码
-                File tmpUtf8File = new File(filePath + ".utf8");
-                Writer writer = new OutputStreamWriter(new FileOutputStream(tmpUtf8File), StandardCharsets.UTF_8);
-                Reader reader = new BufferedReader(new InputStreamReader(new FileInputStream(sourceFile), encoding));
-                char[] buf = new char[1024];
-                int read;
-                while ((read = reader.read(buf)) > 0) {
-                    writer.write(buf, 0, read);
-                }
-                reader.close();
-                writer.close();
-                // 删除源文件
-                if (!sourceFile.delete()) {
-                    logger.error("源文件【{}】删除失败,请检查文件目录权限！", filePath);
-                }
-                // 重命名
-                if (tmpUtf8File.renameTo(sourceFile)) {
-                    logger.error("临时文件【{}】重命名失败，请检查文件路径权限！", tmpUtf8File.getPath());
-                }
-            }
+    private static String getRelFilePath(String fileName, FileAttribute fileAttribute) {
+        String type = fileAttribute.getSuffix();
+        if (null == fileName) {
+            UUID uuid = UUID.randomUUID();
+            fileName = uuid + "." + type;
+        } else { // 文件后缀不一致时，以type为准(针对simText【将类txt文件转为txt】)
+            fileName = fileName.replace(fileName.substring(fileName.lastIndexOf(".") + 1), type);
         }
+        String realPath = fileDir + fileName;
+        File dirFile = new File(fileDir);
+        if (!dirFile.exists() && !dirFile.mkdirs()) {
+            logger.error("创建目录【{}】失败,可能是权限不够，请检查", fileDir);
+        }
+        return realPath;
     }
+
 }

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

@@ -6,19 +6,39 @@ import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
+import java.net.URL;
 import java.util.Objects;
 
-public class FileUtils {
+public class KkFileUtils {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(FileUtils.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(KkFileUtils.class);
 
     public static final String DEFAULT_FILE_ENCODING = "UTF-8";
 
+    /**
+     * 判断url是否是http资源
+     *
+     * @param url url
+     * @return 是否http
+     */
+    public static boolean isHttpUrl(URL url) {
+        return url.getProtocol().toLowerCase().startsWith("file") || url.getProtocol().toLowerCase().startsWith("http");
+    }
+
+    /**
+     * 判断url是否是ftp资源
+     *
+     * @param url url
+     * @return 是否ftp
+     */
+    public static boolean isFtpUrl(URL url) {
+        return "ftp".equalsIgnoreCase(url.getProtocol());
+    }
+
     /**
      * 删除单个文件
      *
-     * @param fileName
-     *            要删除的文件的文件名
+     * @param fileName 要删除的文件的文件名
      * @return 单个文件删除成功返回true，否则返回false
      */
     public static boolean deleteFileByName(String fileName) {
@@ -39,17 +59,26 @@ public class FileUtils {
     }
 
     /**
-     * 判断文件编码格式
+     * 检测文件编码格式
      *
      * @param filePath 绝对路径
      * @return 编码格式
      */
     public static String getFileEncode(String filePath) {
-        File file = new File(filePath);
+        return getFileEncode(new File(filePath));
+    }
+
+    /**
+     * 检测文件编码格式
+     *
+     * @param file 检测的文件
+     * @return 编码格式
+     */
+    public static String getFileEncode(File file) {
         CharsetPrinter cp = new CharsetPrinter();
         try {
             String encoding = cp.guessEncoding(file);
-            LOGGER.info("检测到文件【{}】编码: {}", filePath, encoding);
+            LOGGER.info("检测到文件【{}】编码: {}", file.getAbsolutePath(), encoding);
             return encoding;
         } catch (IOException e) {
             LOGGER.warn("文件编码获取失败，采用默认的编码格式：UTF-8", e);
@@ -59,6 +88,7 @@ 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
      */
@@ -82,8 +112,7 @@ public class FileUtils {
     /**
      * 删除目录及目录下的文件
      *
-     * @param dir
-     *            要删除的目录的文件路径
+     * @param dir 要删除的目录的文件路径
      * @return 目录删除成功返回true，否则返回false
      */
     public static boolean deleteDirectory(String dir) {
@@ -103,13 +132,13 @@ public class FileUtils {
         for (int i = 0; i < Objects.requireNonNull(files).length; i++) {
             // 删除子文件
             if (files[i].isFile()) {
-                flag = FileUtils.deleteFileByName(files[i].getAbsolutePath());
+                flag = KkFileUtils.deleteFileByName(files[i].getAbsolutePath());
                 if (!flag) {
                     break;
                 }
-            }  else if (files[i].isDirectory()) {
+            } else if (files[i].isDirectory()) {
                 // 删除子目录
-                flag = FileUtils.deleteDirectory(files[i].getAbsolutePath());
+                flag = KkFileUtils.deleteDirectory(files[i].getAbsolutePath());
                 if (!flag) {
                     break;
                 }

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

@@ -1,5 +1,9 @@
 package cn.keking.utils;
 
+import io.mola.galimatias.GalimatiasParseException;
+
+import java.net.MalformedURLException;
+import java.net.URL;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -8,6 +12,16 @@ import java.util.Map;
  * create : 2020-12-27 1:30 上午
  **/
 public class WebUtils {
+
+    /**
+     * 获取标准的URL
+     * @param urlStr url
+     * @return 标准的URL
+     */
+    public static URL normalizedURL(String urlStr) throws GalimatiasParseException, MalformedURLException {
+        return io.mola.galimatias.URL.parse(urlStr).toJavaURL();
+    }
+
     /**
      * 获取url中的参数
      *
@@ -81,6 +95,6 @@ public class WebUtils {
     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);
+        return KkFileUtils.suffixFromFileName(fileName);
     }
 }

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

@@ -5,14 +5,17 @@ import cn.keking.service.FilePreview;
 import cn.keking.service.FilePreviewFactory;
 
 import cn.keking.service.cache.CacheService;
-import cn.keking.utils.DownloadUtils;
+import cn.keking.service.impl.OtherFilePreviewImpl;
 import cn.keking.service.FileHandlerService;
-import com.thoughtworks.xstream.core.util.Base64JavaUtilCodec;
+import cn.keking.utils.WebUtils;
+import io.mola.galimatias.GalimatiasParseException;
+import org.apache.commons.io.IOUtils;
 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;
@@ -20,73 +23,96 @@ 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.net.URL;
 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 OtherFilePreviewImpl otherFilePreview;
 
-    public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService) {
+    public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService, OtherFilePreviewImpl otherFilePreview) {
         this.previewFactory = filePreviewFactory;
         this.fileHandlerService = fileHandlerService;
         this.cacheService = cacheService;
+        this.otherFilePreview = otherFilePreview;
     }
 
     @RequestMapping(value = "/onlinePreview")
     public String onlinePreview(String url, Model model, HttpServletRequest req) {
-        String fileUrl = new String(Base64Utils.decodeFromString(url));
-        FileAttribute fileAttribute = fileHandlerService.getFileAttribute(fileUrl,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);
+        model.addAttribute("file", fileAttribute);
         FilePreview filePreview = previewFactory.get(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());
-        } catch (IOException e) {
+            URL url = WebUtils.normalizedURL(urlPath);
+            byte[] bytes = IOUtils.toByteArray(url);
+            IOUtils.write(bytes, response.getOutputStream());
+        } catch (IOException | GalimatiasParseException e) {
             logger.error("下载跨域pdf文件异常，url：{}", urlPath, e);
         }
     }
 
     /**
      * 通过api接口入队
+     *
      * @param url 请编码后在入队
      */
     @RequestMapping("/addTask")

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/index.ftl

@@ -2,51 +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>
+    <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(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 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>
@@ -59,86 +57,100 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(bas
                 </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="btnSubmit" 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>
@@ -172,9 +184,9 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(bas
             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', {});
                 }
             },
@@ -183,6 +195,7 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(bas
             }
         })
     }
+
     $(function () {
         $('#table').bootstrapTable({
             url: 'listFiles',
@@ -193,14 +206,14 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(bas
                 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(Base64.encode('${baseUrl}' + item.fileName)) +"'>预览</a>" +
-                    "<a class='btn btn-default' href='javascript:void(0);' onclick='deleteFile(\""+item.fileName+"\")'>删除</a>";
+                item.action = "<a class='btn btn-default' target='_blank' href='${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;
         });
 
@@ -210,12 +223,12 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(bas
             $(".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', {});

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

@@ -0,0 +1,118 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8"/>
+    <meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1.0">
+    <title>普通文本预览</title>
+</head>
+<body>
+<input hidden id="textData" value="${textData}"/>
+
+<div class="container">
+    <div class="panel panel-default">
+        <div id="markdown_btn" class="panel-heading">
+            <h4 class="panel-title">
+                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
+                    ${file.name}
+                </a>
+            </h4>
+        </div>
+        <div id="text_btn" class="panel-heading">
+            <h4 class="panel-title">
+                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
+                    ${file.name}
+                </a>
+            </h4>
+        </div>
+        <div class="panel-body">
+            <div id="markdown"></div>
+        </div>
+    </div>
+</div>
+
+<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css"/>
+
+<script src="js/jquery-3.0.0.min.js" type="text/javascript"></script>
+<script src="js/jquery.form.min.js" type="text/javascript"></script>
+<script src="bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
+<script src="js/watermark.js" type="text/javascript"></script>
+<script src="js/marked.min.js" type="text/javascript"></script>
+<script src="js/base64.min.js" type="text/javascript"></script>
+
+<script>
+    /**
+     * 初始化
+     */
+    window.onload = function () {
+        $("#markdown_btn").hide()
+        initWaterMark();
+        loadMarkdown();
+    }
+
+    /**
+     * 初始化水印
+     */
+    function initWaterMark() {
+        let watermarkTxt = '${watermarkTxt}';
+        if (watermarkTxt !== '') {
+            watermark.init({
+                watermark_txt: '${watermarkTxt}',
+                watermark_x: 0,
+                watermark_y: 0,
+                watermark_rows: 0,
+                watermark_cols: 0,
+                watermark_x_space: ${watermarkXSpace},
+                watermark_y_space: ${watermarkYSpace},
+                watermark_font: '${watermarkFont}',
+                watermark_fontsize: '${watermarkFontsize}',
+                watermark_color: '${watermarkColor}',
+                watermark_alpha: ${watermarkAlpha},
+                watermark_width: ${watermarkWidth},
+                watermark_height: ${watermarkHeight},
+                watermark_angle: ${watermarkAngle},
+            });
+        }
+    }
+
+
+    /**
+     * 加载markdown
+     */
+    function loadMarkdown() {
+        var textData = Base64.decode($("#textData").val())
+        window.textPreData = "<pre style='background-color: #FFFFFF;border:none'>" + textData + "</pre>";
+        window.textMarkdownData = marked(textData);
+        $("#markdown").html(window.textMarkdownData);
+    }
+
+
+    $(function () {
+        $("#markdown_btn").click(function () {
+            $("#markdown").html(window.textMarkdownData);
+            $("#text_btn").show()
+            $("#markdown_btn").hide()
+        });
+
+        $("#text_btn").click(function () {
+            $("#markdown_btn").show()
+            $("#text_btn").hide();
+            $("#markdown").html(window.textPreData);
+        });
+    });
+
+</script>
+<style>
+    * {
+        margin: 0;
+        padding: 0;
+    }
+
+    html, body {
+        height: 100%;
+        width: 100%;
+    }
+
+</style>
+</body>
+
+</html>

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

@@ -6,32 +6,29 @@
     <title>普通文本预览</title>
 </head>
 <body>
-<input hidden id="textType" value="${textType}"/>
 <input hidden id="textData" value="${textData}"/>
 
 <div class="container">
-    <#if textType?? && textType == "markdown">
-        <p>
-            <button id="markdown_btn" type="button" class="btn btn-primary">切换markdown</button>
-            <button id="text_btn" type="button" class="btn btn-primary">切换text</button>
-        </p>
-        <div id="markdown" style="padding: 18px;"></div>
-    <#elseif textType?? && textType == "xml" >
-        <div id="xml" style="padding: 18px;"></div>
-    <#else>
-        <div id="text"></div>
-    </#if>
+    <div class="panel panel-default">
+        <div class="panel-heading">
+            <h4 class="panel-title">
+                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
+                    ${file.name}
+                </a>
+            </h4>
+        </div>
+        <div class="panel-body">
+            <div id="text"></div>
+        </div>
+    </div>
 </div>
 
-<link rel="stylesheet" href="css/xmlTreeViewer.css"/>
 <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css"/>
 
 <script src="js/jquery-3.0.0.min.js" type="text/javascript"></script>
 <script src="js/jquery.form.min.js" type="text/javascript"></script>
 <script src="bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
 <script src="js/watermark.js" type="text/javascript"></script>
-<script src="js/marked.min.js" type="text/javascript"></script>
-<script src="js/xmlTreeViewer.js" type="text/javascript"></script>
 <script src="js/base64.min.js" type="text/javascript"></script>
 
 <script>
@@ -39,12 +36,8 @@
      * 初始化
      */
     window.onload = function () {
-        $("#markdown_btn").hide()
         initWaterMark();
-        fetchData();
         loadText();
-        loadXmlData()
-        loadMarkdown();
     }
 
     /**
@@ -72,56 +65,16 @@
         }
     }
 
-    /**
-     * 获取文本数据
-     */
-    function fetchData() {
-        window.textData = Base64.decode($("#textData").val())
-        window.textPreData = "<pre>" + window.textData + "</pre>";
-    }
-
     /**
      *加载普通文本
      */
     function loadText() {
-        $("#text").html(window.textPreData);
+        var textData = Base64.decode($("#textData").val())
+        var textPreData = "<pre style='background-color: #FFFFFF;border:none'>" + textData + "</pre>";
+
+        $("#text").html(textPreData);
     }
 
-    /**
-     * 加载markdown
-     */
-    function loadMarkdown() {
-        if ($("#textType").val() === "markdown") {
-            window.textMarkdownData = marked(window.textData);
-            $("#markdown").html(window.textMarkdownData);
-        }
-    }
-
-    /**
-     * 加载xml数据
-     */
-    function loadXmlData() {
-        if ($("#textType").val() === "xml") {
-            var xmlNode = xmlTreeViewer.parseXML(window.textData);
-            var retNode = xmlTreeViewer.getXMLViewerNode(xmlNode.xml);
-            $("#xml").html(retNode);
-        }
-    }
-
-    $(function () {
-        $("#markdown_btn").click(function () {
-            $("#markdown").html(window.textMarkdownData);
-            $("#text_btn").show()
-            $("#markdown_btn").hide()
-        });
-
-        $("#text_btn").click(function () {
-            $("#markdown_btn").show()
-            $("#text_btn").hide();
-            $("#markdown").html(window.textPreData);
-        });
-    });
-
 </script>
 <style>
     * {
@@ -134,13 +87,6 @@
         width: 100%;
     }
 
-    #markdown, #xml {
-        height: 97%;
-        max-height: 97%;
-        border: 1px solid #ece7e7;
-        overflow-y: scroll;
-        width: 100%;
-    }
 </style>
 </body>
 

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

@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8"/>
+    <meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1.0">
+    <title>普通文本预览</title>
+</head>
+<body>
+<input hidden id="textData" value="${textData}"/>
+<div class="container">
+    <div class="panel panel-default">
+        <div class="panel-heading">
+            <h4 class="panel-title">
+                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
+                     ${file.name}
+                </a>
+            </h4>
+        </div>
+        <div class="panel-body">
+            <div id="xml"></div>
+        </div>
+    </div>
+</div>
+
+<link rel="stylesheet" href="css/xmlTreeViewer.css"/>
+<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css"/>
+
+<script src="js/jquery-3.0.0.min.js" type="text/javascript"></script>
+<script src="js/jquery.form.min.js" type="text/javascript"></script>
+<script src="bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
+<script src="js/watermark.js" type="text/javascript"></script>
+<script src="js/marked.min.js" type="text/javascript"></script>
+<script src="js/xmlTreeViewer.js" type="text/javascript"></script>
+<script src="js/base64.min.js" type="text/javascript"></script>
+
+<script>
+    /**
+     * 初始化
+     */
+    window.onload = function () {
+        initWaterMark();
+        loadXmlData()
+    }
+
+    /**
+     * 初始化水印
+     */
+    function initWaterMark() {
+        let watermarkTxt = '${watermarkTxt}';
+        if (watermarkTxt !== '') {
+            watermark.init({
+                watermark_txt: '${watermarkTxt}',
+                watermark_x: 0,
+                watermark_y: 0,
+                watermark_rows: 0,
+                watermark_cols: 0,
+                watermark_x_space: ${watermarkXSpace},
+                watermark_y_space: ${watermarkYSpace},
+                watermark_font: '${watermarkFont}',
+                watermark_fontsize: '${watermarkFontsize}',
+                watermark_color: '${watermarkColor}',
+                watermark_alpha: ${watermarkAlpha},
+                watermark_width: ${watermarkWidth},
+                watermark_height: ${watermarkHeight},
+                watermark_angle: ${watermarkAngle},
+            });
+        }
+    }
+
+
+    /**
+     * 加载xml数据
+     */
+    function loadXmlData() {
+        var textData = Base64.decode($("#textData").val())
+        var xmlNode = xmlTreeViewer.parseXML(textData);
+        var retNode = xmlTreeViewer.getXMLViewerNode(xmlNode.xml);
+        $("#xml").html(retNode);
+
+    }
+
+</script>
+<style>
+    * {
+        margin: 0;
+        padding: 0;
+    }
+
+    html, body {
+        height: 100%;
+        width: 100%;
+    }
+
+</style>
+</body>
+
+</html>