zip文件解压

/*** 解压zip** @param zipFile* @param descDir* @throws Exception*/@RequestMapping("/ff")@ResponseBodypublic  AjaxResult unZipFiles(MultipartFile fil, String descDir) throws Exception {System.out.println("******************解压开始********************");File zipFile = null;if(fil.equals("") ||fil.getSize()<=0){fil = null;}else {InputStream ins = null;ins = fil.getInputStream();zipFile = new File(fil.getOriginalFilename());inputStreamToFile(ins, zipFile);ins.close();}descDir = Global.getAvatarPath()+DateUtils.datePath() ;File pathFile = new File(descDir);if (!pathFile.exists()) {pathFile.mkdirs();}@SuppressWarnings("resource")ZipFile zip = new ZipFile(zipFile, Charset.forName("GBK"));for (Enumeration<?> entries = zip.entries(); entries.hasMoreElements();) {ZipEntry entry = (ZipEntry) entries.nextElement();String zipEntryName = entry.getName();InputStream in = zip.getInputStream(entry);String outPath = (descDir + "/" + zipEntryName).replaceAll("\\*", "/");// 判断路径是否存在,不存在则创建文件路径File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));if (!file.exists()) {file.mkdirs();}// 判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压if (new File(outPath).isDirectory()) {continue;}OutputStream out = new FileOutputStream(outPath);byte[] buf1 = new byte[1024];int len;while ((len = in.read(buf1)) > 0) {out.write(buf1, 0, len);}if ((zipEntryName.trim().lastIndexOf("/")) == -1) {}in.close();out.close();}System.out.println("******************解压完毕********************");System.out.println("******************遍历文件夹********************");String parent_id = "";traverse(descDir, parent_id);return success();}public  void inputStreamToFile(InputStream ins, File file) {try {OutputStream os = new FileOutputStream(file);int bytesRead = 0;byte[] buffer = new byte[8192];while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {os.write(buffer, 0, bytesRead);}os.close();ins.close();} catch (Exception e) {e.printStackTrace();}}/*** 文件夹遍历* * @param path* @throws Exception*/public  void traverse(String path, String parent_id) throws Exception {System.out.println("path---->" + path);File file = new File(path);if (file.exists()) {File[] files = file.listFiles();if (files.length == 0) {System.out.println("文件夹是空的!");return;} else {String k_id = "aaa";for (File file2 : files) {if (file2.isDirectory()) {// 文件夹traverse(file2.getAbsolutePath(), parent_id);parent_id = k_id;} else if (file2.isFile()) {// 文件if (file2.getName().endsWith(".xls")||file2.getName().endsWith(".xlsx")) {ExcelUtil<SysUser> util = new ExcelUtil<SysUser>(SysUser.class);List<SysUser> userList = util.importExcel(new FileInputStream(file2));List<SysUser> users = new ArrayList<>();for (SysUser sysUser : userList) {if (sysUser.getRecordPicture()!=null) {sysUser.setRecordPicture(DateUtils.datePath()+"/"+sysUser.getRecordPicture());users.add(sysUser);}}String operName = ShiroUtils.getSysUser().getLoginName();userService.importUser(users, true, operName);FileUtils.deleteFile(file2.getCanonicalPath());}}}}} else {System.out.println("文件不存在!");}}

将目标文件压缩为zip文件下载到桌面

1.将文件及图片打包压缩文件zip文件

@RequestMapping("/download")@ResponseBodypublic  void download(HttpServletRequest request, HttpServletResponse response) throws Exception{response.setCharacterEncoding("UTF-8");//获得要下载的文件名String fileName = "导入用户示例.xlsx";String fileName2 = "张1.jpg";String fileSaveRootPath = "D:\\Work\\fw\\profile\\avatar\\示例\\";//得到要下载的文件File file = new File(fileSaveRootPath, fileName);File file2 = new File(fileSaveRootPath, fileName2);System.out.println("Excel文件保存路径1:" + fileSaveRootPath + fileName);System.out.println("Excel文件保存路径2:" + fileSaveRootPath + fileName2);//如果文件不存在if (!file.exists() ) {request.setAttribute("message", "您要下载的资源已被删除！！");request.getRequestDispatcher("/message.jsp").forward(request, response);return ;}//先压缩String zipName = "导入用户示例.zip";//获取当前用户桌面File desktopDir = FileSystemView.getFileSystemView() .getHomeDirectory();String desktopPath = desktopDir.getAbsolutePath();String zipPath = desktopPath+"\\" + zipName;ZipOutputStream zipOutput = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipPath)));ZipEntry zEntry = new ZipEntry(file.getName());zipOutput.putNextEntry(zEntry);BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));byte[] buffer = new byte[1024];int read = 0;while((read = bis.read(buffer)) != -1){zipOutput.write(buffer, 0, read);}zEntry = new ZipEntry(file2.getName());zipOutput.putNextEntry(zEntry);bis = new BufferedInputStream(new FileInputStream(file2));while((read = bis.read(buffer)) != -1){zipOutput.write(buffer, 0, read);}bis.close();zipOutput.close();//创建输出流，下载ziptry(OutputStream out = response.getOutputStream();FileInputStream in = new FileInputStream(new File(zipPath));){//设置响应头，控制浏览器下载该文件response.setHeader("Content-Type","application/octet-stream");response.setHeader("Content-Disposition","attachment;filename="+java.net.URLEncoder.encode(zipName, "UTF-8"));while((read = in.read(buffer)) != -1){out.write(buffer, 0, read);}System.out.println("zip下载路径："+zipPath);}finally {try {/*//删除压缩包File zfile = new File(zipPath);zfile.delete();*/}catch (Exception e){e.printStackTrace();}}}

2.将zip实例文件放到工程中通过浏览器直接下载

@RequestMapping("/download")
@ResponseBody
public  String download(HttpServletResponse response) throws Exception{response.setCharacterEncoding("UTF-8");String url = "http://localhost:8080/user.zip";Runtime runtime = Runtime.getRuntime();try {runtime.exec("rundll32 url.dll,FileProtocolHandler " + url);} catch (IOException e) {return null;}return "";
}