java不解壓直接讀取壓縮包中文件的實現方法

@RequestMapping(value = "packageUpload")
 public void packageUpload(HttpServletRequest request,
    HttpServletResponse response) {
  File file = null;
  try {
   MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
   MultipartFile multipartFile = multipartRequest.getFile("file");

   if (null == multipartFile){
    return;
   }
   String originalFilename = multipartFile.getOriginalFilename();

   //判斷上傳文件必須是zip或者是rar否則不允許上傳
   String[] filename = originalFilename.split("\\.");
   if (!filename[1].equals("zip") && !filename[1].equals("rar")){
    return;
   }

   //創建臨時文件時，名稱長度必須大於2
   file = File.createTempFile(filename[0].length() <= 2 ? "壓縮包" + filename[0] : filename[0], filename[1]);
   multipartFile.transferTo(file);
   file.deleteOnExit();
   ZipFile zf = new ZipFile(file);
   Enumeration<?> zipEnum = zf.entries();
   ZipEntry ze;
   while (zipEnum.hasMoreElements()) {
    ze = (ZipEntry) zipEnum.nextElement();
    if (!ze.isDirectory()) {
     long size = ze.getSize();
     if (size > 0) {
      String[] name = ze.getName().split("\\.");
      String emojiName = name[0];
      String type = name[1];

      if (type.equals("jpg") || type.equals("png") || type.equals("gif") || type.equals("jpeg")){
       String[] split = emojiName.split("/");
       String picName = split[1] + "." + type;
  
       InputStream is = zf.getInputStream(ze);
       logger.info("picName:" + picName + ",size:" + size + ",inputStream:" + is);
       ///到這裡調用上傳文件的方法上傳這個圖片就可以瞭
      }
     }
    }
   }
  } catch (Exception e) {
   logger.error("packageUpload_error:" , e);
  }
 }