图片上传

来源：互联网发布：semirestore9 mac 编辑：程序博客网时间：2024/05/10 21:43

方法体

@RequestMapping(value = "/upload", method = RequestMethod.POST)
public void processImageUpload(@RequestParam("img") MultipartFile file, HttpServletRequest request, HttpServletResponse response) throws Exception {
  System.out.println("进入方法");
  if (!file.isEmpty()) {
   try {
    String print = null;
    if (Multimedia.isImageFile(file.getOriginalFilename())) {
     String[] nameAndPath = UploadImgUtils.getFileDir(tempDir);
     String w = request.getParameter("w");
     String h = request.getParameter("h");
     String fileName = StringUtil.random(15);
     File src = new File(nameAndPath[1] + file.getOriginalFilename());
     file.transferTo(src);
     String ext = FilenameUtils.getExtension(file.getOriginalFilename());
     File dest = new File(nameAndPath[1] + fileName + "." + ext);
     service.scale(src, dest, 0, 0);
     System.out.println(nameAndPath[0] + "/" + fileName + "." + ext);
     print = UploadImgUtils.output_json(new String[] { "name" }, new Object[] { nameAndPath[0] + "/" + fileName + "." + ext });
    } else {
     print = UploadImgUtils.output_json(new String[] { "msg" }, new Object[] { "<span style='color:red'>no image file</span>" });
    }
    response.setContentType("text/html;charset=UTF-8");
    response.getOutputStream().print(print);
   } catch (IOException e) {
    logger.error("上传图片到mongodb出错", e);
   }
  }
}