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1.优化代码结构，抽象预览接口服务

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2.新增更多图片预览格式支持
This commit is contained in:
kl
2018-01-17 17:51:53 +08:00
parent 78de36964d
commit 2f86701eea
33 changed files with 447 additions and 2631 deletions
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11
jodconverter-web/src/main/java/cn/keking/service/FilePreview.java Normal file
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package cn.keking.service;
import org.springframework.ui.Model;
/**
* Created by kl on 2018/1/17.
* Content :
*/
public interface FilePreview {
String filePreviewHandle(String url, Model model);
}

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jodconverter-web/src/main/java/cn/keking/service/FilePreviewFactory.java Normal file
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package cn.keking.service;
import cn.keking.model.FileAttribute;
import cn.keking.utils.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import java.util.Map;
/**
* Created by kl on 2018/1/17.
* Content :
*/
@Service
public class FilePreviewFactory {
@Autowired
FileUtils fileUtils;
@Autowired
ApplicationContext context;
public FilePreview get(String url) {
Map<String, FilePreview> filePreviewMap = context.getBeansOfType(FilePreview.class);
FileAttribute fileAttribute = fileUtils.getFileAttribute(url);
return filePreviewMap.get(fileAttribute.getType().getInstanceName());
}
}

62
jodconverter-web/src/main/java/cn/keking/service/impl/CompressFilePreviewImpl.java Normal file
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package cn.keking.service.impl;
import cn.keking.model.FileAttribute;
import cn.keking.param.ReturnResponse;
import cn.keking.service.FilePreview;
import cn.keking.utils.DownloadUtils;
import cn.keking.utils.FileUtils;
import cn.keking.utils.ZipReader;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
/**
* Created by kl on 2018/1/17.
* Content :处理压缩包文件
*/
@Service
public class CompressFilePreviewImpl implements FilePreview{
@Autowired
FileUtils fileUtils;
@Autowired
DownloadUtils downloadUtils;
@Autowired
ZipReader zipReader;
@Override
public String filePreviewHandle(String url, Model model) {
FileAttribute fileAttribute=fileUtils.getFileAttribute(url);
String fileName=fileAttribute.getName();
String decodedUrl=fileAttribute.getDecodedUrl();
String suffix=fileAttribute.getSuffix();
String fileTree = null;
// 判断文件名是否存在(redis缓存读取)
if (!StringUtils.hasText(fileUtils.getConvertedFile(fileName))) {
ReturnResponse<String> response = downloadUtils.downLoad(decodedUrl, suffix, fileName);
if (0 != response.getCode()) {
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
}
String filePath = response.getContent();
if ("zip".equalsIgnoreCase(suffix) || "jar".equalsIgnoreCase(suffix) || "gzip".equalsIgnoreCase(suffix)) {
fileTree = zipReader.readZipFile(filePath, fileName);
} else if ("rar".equalsIgnoreCase(suffix)) {
fileTree = zipReader.unRar(filePath, fileName);
}
fileUtils.addConvertedFile(fileName, fileTree);
} else {
fileTree = fileUtils.getConvertedFile(fileName);
}
if (null != fileTree) {
model.addAttribute("fileTree", fileTree);
return "compress";
} else {
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";
}
}
}

73
jodconverter-web/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java Normal file
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package cn.keking.service.impl;
import cn.keking.model.FileAttribute;
import cn.keking.param.ReturnResponse;
import cn.keking.service.FilePreview;
import cn.keking.utils.DownloadUtils;
import cn.keking.utils.FileUtils;
import cn.keking.utils.OfficeToPdf;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import java.io.File;
/**
* Created by kl on 2018/1/17.
* Content :处理office文件
*/
@Service
public class OfficeFilePreviewImpl implements FilePreview {
@Autowired
FileUtils fileUtils;
@Value("${file.dir}")
String fileDir;
@Autowired
DownloadUtils downloadUtils;
@Autowired
private OfficeToPdf officeToPdf;
@Override
public String filePreviewHandle(String url, Model model) {
FileAttribute fileAttribute=fileUtils.getFileAttribute(url);
String suffix=fileAttribute.getSuffix();
String fileName=fileAttribute.getName();
String decodedUrl=fileAttribute.getDecodedUrl();
boolean isHtml = suffix.equalsIgnoreCase("xls") || suffix.equalsIgnoreCase("xlsx");
String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + (isHtml ? "html" : "pdf");
// 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 (!fileUtils.listConvertedFiles().containsKey(pdfName)) {
String filePath = fileDir + fileName;
if (!new File(filePath).exists()) {
ReturnResponse<String> response = downloadUtils.downLoad(decodedUrl, suffix, null);
if (0 != response.getCode()) {
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
}
filePath = response.getContent();
}
String outFilePath = fileDir + pdfName;
if (StringUtils.hasText(outFilePath)) {
officeToPdf.openOfficeToPDF(filePath, outFilePath);
File f = new File(filePath);
if (f.exists()) {
f.delete();
}
if (isHtml) {
// 对转换后的文件进行操作(改变编码方式)
fileUtils.doActionConvertedFile(outFilePath);
}
// 加入缓存
fileUtils.addConvertedFile(pdfName, fileUtils.getRelativePath(outFilePath));
}
}
model.addAttribute("pdfUrl", pdfName);
return isHtml ? "html" : "pdf";
}
}

19
jodconverter-web/src/main/java/cn/keking/service/impl/OtherFilePreviewImpl.java Normal file
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package cn.keking.service.impl;
import cn.keking.service.FilePreview;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
/**
* Created by kl on 2018/1/17.
* Content :其他文件
*/
@Service
public class OtherFilePreviewImpl implements FilePreview {
@Override
public String filePreviewHandle(String url, Model model) {
model.addAttribute("msg", "系统还不支持该格式文件的在线预览，" +
"如有需要请按下方显示的邮箱地址联系系统维护人员");
return "fileNotSupported";
}
}

19
jodconverter-web/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java Normal file
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package cn.keking.service.impl;
import cn.keking.service.FilePreview;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
/**
* Created by kl on 2018/1/17.
* Content :处理pdf文件
*/
@Service
public class PdfFilePreviewImpl implements FilePreview{
@Override
public String filePreviewHandle(String url, Model model) {
model.addAttribute("pdfUrl", url);
return "pdf";
}
}

37
jodconverter-web/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java Normal file
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package cn.keking.service.impl;
import cn.keking.service.FilePreview;
import cn.keking.utils.FileUtils;
import com.google.common.collect.Lists;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.web.context.request.RequestContextHolder;
import java.util.List;
/**
* Created by kl on 2018/1/17.
* Content :图片文件处理
*/
@Service
public class PictureFilePreviewImpl implements FilePreview {
@Autowired
FileUtils fileUtils;
@Override
public String filePreviewHandle(String url, Model model) {
String fileKey=(String) RequestContextHolder.currentRequestAttributes().getAttribute("fileKey",0);
List imgUrls = Lists.newArrayList(url);
try{
imgUrls.clear();
imgUrls.addAll(fileUtils.getRedisImgUrls(fileKey));
}catch (Exception e){
imgUrls = Lists.newArrayList(url);
}
model.addAttribute("imgurls", imgUrls);
model.addAttribute("currentUrl",url);
return "picture";
}
}

42
jodconverter-web/src/main/java/cn/keking/service/impl/SimTextFilePreviewImpl.java Normal file
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package cn.keking.service.impl;
import cn.keking.model.FileAttribute;
import cn.keking.model.FileType;
import cn.keking.param.ReturnResponse;
import cn.keking.service.FilePreview;
import cn.keking.utils.FileUtils;
import cn.keking.utils.SimTextUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import java.net.URLDecoder;
/**
* Created by kl on 2018/1/17.
* Content :处理文本文件
*/
@Service
public class SimTextFilePreviewImpl implements FilePreview{
@Autowired
SimTextUtil simTextUtil;
@Autowired
FileUtils fileUtils;
@Override
public String filePreviewHandle(String url, Model model){
FileAttribute fileAttribute=fileUtils.getFileAttribute(url);
String decodedUrl=fileAttribute.getDecodedUrl();
String fileName=fileAttribute.getName();
ReturnResponse<String> response = simTextUtil.readSimText(decodedUrl, fileName);
if (0 != response.getCode()) {
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
}
model.addAttribute("ordinaryUrl", response.getMsg());
return "txt";
}
}