使用Springmvc框架实现多文件上传（二）

上一个小demo中，我们使用的是传入数组的方式，接下来我们可以使用单个入参的方式也是可以的

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/*//多文件上传     @RequestMapping(value="/useraddsave.html",method=RequestMethod.POST)     public String addUserSave(User user,HttpSession session,HttpServletRequest request,                              @RequestParam(value ="a_idPicPath", required = false) MultipartFile idPicFile,                              @RequestParam(value ="a_workPicPath", required = false) MultipartFile workPicFile){         String idPicPath = null;         String workPicPath = null;         String path = request.getSession().getServletContext().getRealPath("statics"+File.separator+"uploadfiles");         logger.info("uploadFile path ============== > "+path);                   //判断文件是否为空(证件照)         if(!idPicFile.isEmpty()){             String oldFileName = idPicFile.getOriginalFilename();//原文件名             logger.info("uploadFile oldFileName ============== > "+oldFileName);             String prefix=FilenameUtils.getExtension(oldFileName);//原文件后缀                 logger.debug("uploadFile prefix============> " + prefix);             int filesize = 500000;             logger.debug("uploadFile size============> " + idPicFile.getSize());             if(idPicFile.getSize() >  filesize){//上传大小不得超过 500k                 request.setAttribute("uploadFileError", " * 上传大小不得超过 500k");                 return "useradd";             }else if(prefix.equalsIgnoreCase("jpg") || prefix.equalsIgnoreCase("png")                     || prefix.equalsIgnoreCase("jpeg") || prefix.equalsIgnoreCase("pneg")){//上传图片格式不正确                 String fileName = System.currentTimeMillis()+RandomUtils.nextInt(1000000)+"_Personal.jpg";                  logger.debug("new fileName======== " + idPicFile.getName());                 File targetFile = new File(path, fileName);                  if(!targetFile.exists()){                      targetFile.mkdirs();                  }                  //保存                  try {                      idPicFile.transferTo(targetFile);                  } catch (Exception e) {                      e.printStackTrace();                      request.setAttribute("uploadFileError", " * 上传失败！");                     return "useradd";                 }                  idPicPath = path+File.separator+fileName;             }else{                 request.setAttribute("uploadFileError", " * 上传图片格式不正确");                 return "useradd";             }         }                   //判断文件是否为空(工作证照)         if(!workPicFile.isEmpty()){             String oldFileName = workPicFile.getOriginalFilename();//原文件名             logger.info("uploadFile oldFileName ============== > "+oldFileName);             String prefix=FilenameUtils.getExtension(oldFileName);//原文件后缀                 logger.debug("uploadFile prefix============> " + prefix);             int filesize = 500000;             logger.debug("uploadFile size============> " + workPicFile.getSize());             if(workPicFile.getSize() >  filesize){//上传大小不得超过 500k                 request.setAttribute("uploadWpError", " * 上传大小不得超过 500k");                 return "useradd";             }else if(prefix.equalsIgnoreCase("jpg") || prefix.equalsIgnoreCase("png")                     || prefix.equalsIgnoreCase("jpeg") || prefix.equalsIgnoreCase("pneg")){//上传图片格式不正确                 String fileName = System.currentTimeMillis()+RandomUtils.nextInt(1000000)+"_Personal.jpg";                  logger.debug("new fileName======== " + workPicFile.getName());                 File targetFile = new File(path, fileName);                  if(!targetFile.exists()){                      targetFile.mkdirs();                  }                  //保存                  try {                      workPicFile.transferTo(targetFile);                  } catch (Exception e) {                      e.printStackTrace();                      request.setAttribute("uploadWpError", " * 上传失败！");                     return "useradd";                 }                  workPicPath = path+File.separator+fileName;             }else{                 request.setAttribute("uploadWpError", " * 上传图片格式不正确");                 return "useradd";             }         }                   user.setCreatedBy(((User)session.getAttribute(Constants.USER_SESSION)).getId());         user.setCreationDate(new Date());         user.setIdPicPath(idPicPath);         user.setWorkPicPath(workPicPath);         if(userService.add(user)){             return "redirect:/user/userlist.html";         }         return "useradd";     }*/