图片上传实例

jsp:

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<form action="/image/save.jhtml" method="post" enctype="multipart/form-data" style="width: 500px">     <input type="hidden" name="focusId" value="${image.focusId}"/>     <input type="hidden" name="type" value="${image.type}"/>     <input type="file" name="imageFile"/>     <input type="submit" value="上传"/>图片大小不能超过1M </form>

 java:

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@RequestMapping("/image/save.jhtml") public ModelAndView save(@RequestParam(value = "imageFile", required = false)                          MultipartFile imageFile, HttpServletRequest request, ModelMap model, Image image) {     HttpSession session = request.getSession(false);     User logUser = (User) session.getAttribute(GoutripUtils.USER_CONTEXT);     if (null == logUser)         return new ModelAndView("redirect:/views/public/index.jsp");     String name = logUser.getName();     image.setUpdator(name);     image.setCreator(name);     image.setStatus(1);     String fileName = imageFile.getOriginalFilename();     String lastName = fileName.substring(fileName.lastIndexOf('.'));     if (lastName.length() > 5)         lastName = ".jpg";     final File targetFile = PathUtil.getRandImgFile(lastName);     final String filePath = targetFile.getPath();     if (!targetFile.exists())         targetFile.mkdirs();     try {         imageFile.transferTo(targetFile);     } catch (IOException e) {         e.printStackTrace();     }     final String finalLastName = lastName;     new Thread(new Runnable() {         @Override         public void run() {             String picTo = null;             picTo = filePath.substring(filePath.lastIndexOf(".")) + "_1000x500" + finalLastName;             ImageUtils.resize(filePath, picTo, 500, 1000, true);         }     }).start();     String path = PathUtil.getRandImgFileUrl(targetFile);     if (path.equals("/"))         path = PathUtil.getImgFileUrl(targetFile.getPath());     System.out.println(path);     image.setUrl(path);     imageService.save(image);     if (null == model)         model = new ModelMap();     model.clear();     model.put("focusId", image.getFocusId());     model.put("type", image.getType());     return new ModelAndView("redirect:/image/manager.jhtml").addAllObjects(model); }