Java代码  

1. @ResponseBody
2. @RequestMapping("/save")
3. public ModelAndView save(SimpleMessage simpleMessage){
4. //查询时可以使用 isNotNull
5. if(!ValueWidget.isNullOrEmpty(simpleMessage)){
6. try {
7. //把对象中空字符串改为null
8. ReflectHWUtils.convertEmpty2Null(simpleMessage);
9. } catch (SecurityException e) {
10. e.printStackTrace();
11. } catch (NoSuchFieldException e) {
12. e.printStackTrace();
13. } catch (IllegalArgumentException e) {
14. e.printStackTrace();
15. } catch (IllegalAccessException e) {
16. e.printStackTrace();
17. }
18. }
19. simpleMessage.setCreateTime(TimeHWUtil.getCurrentTimestamp());
20. simpleMessage.setHasReply(Constant2.SIMPLE_MESSAGE_HAS_REPLY_NOT_YET);
21. this.simpleMessageDao.add(simpleMessage);
22. Map map=new HashMap();
23. map.put("result", "success");
24. return new ModelAndView(new MappingJacksonJsonView(),map);
25. }

Java代码  

1. /***
2. * {"fileName":"20141002125209_571slide4.jpg","path":"D:\\software\\eclipse\\workspace2\\demo_channel_terminal\\upload\\image\\20141002125209_571slide4.jpg"}
3. * @param file
4. * @param request
5. * @param response
6. * @return
7. * @throws IOException
8. */
9. @ResponseBody
10. @RequestMapping(value = "/upload")
11. public String upload(
12. @RequestParam(value = "image223", required = false) MultipartFile file,
13. HttpServletRequest request, HttpServletResponse response)
14. throws IOException {
15. String content = null;
16. Map map = new HashMap();
17. if (ValueWidget.isNullOrEmpty(file)) {
18. map.put("error", "not specify file!!!");
19. } else {
20. System.out.println("request:" + request);// org.springframework.web.multipart.support.DefaultMultipartHttpServletRequest@7063d827
21. System.out.println("request:" + request.getClass().getSuperclass());
22. // // System.out.println("a:"+element+":$$");
23. // break;
24. // }
25. String fileName = file.getOriginalFilename();// 上传的文件名
26. fileName=fileName.replaceAll("[\\s]",   "");//IE中识别不了有空格的json
27. // 保存到哪儿
28. String finalFileName = TimeHWUtil.formatDateByPattern(TimeHWUtil
29. .getCurrentTimestamp(),"yyyyMMddHHmmss")+ "_"
30. + new Random().nextInt(1000) + fileName;
31. File savedFile = getUploadedFilePath(request,
32. Constant2.UPLOAD_FOLDER_NAME + "/image", finalFileName,
33. Constant2.SRC_MAIN_WEBAPP);// "D:\\software\\eclipse\\workspace2\\demo_channel_terminal\\ upload\\pic\\ys4-1.jpg"
34. System.out.println("[upload]savedFile:"
35. + savedFile.getAbsolutePath());
36. // 保存
37. try {
38. file.transferTo(savedFile);
39. } catch (Exception e) {
40. e.printStackTrace();
41. }
42. ObjectMapper mapper = new ObjectMapper();
43. map.put("fileName", finalFileName);
44. map.put("path", savedFile.getAbsolutePath());
45. try {
46. content = mapper.writeValueAsString(map);
47. System.out.println(content);
48. } catch (JsonGenerationException e) {
49. e.printStackTrace();
50. } catch (JsonMappingException e) {
51. e.printStackTrace();
52. } catch (IOException e) {
53. e.printStackTrace();
54. }
55. //          System.out.println("map:"+map);
56. }
57. /*
58. * {"fileName":"20141002125209_571slide4.jpg","path":"D:\\software\\eclipse\\workspace2\\demo_channel_terminal\\upload\\image\\20141002125209_571slide4.jpg"}
59. * */
60. return content;
61. }

Java代码  

1. @ResponseBody
2. @RequestMapping(value = "/upload",produces="application/json;charset=UTF-8")
3. public String upload(HttpServletRequest request, HttpServletResponse response,String contentType2)
4. throws IOException {
5. String content = null;
6. Map map = new HashMap();
7. ObjectMapper mapper = new ObjectMapper();
8. map.put("fileName", "a.txt");
9. try {
10. content = mapper.writeValueAsString(map);
11. System.out.println(content);
12. } catch (JsonGenerationException e) {
13. e.printStackTrace();
14. } catch (JsonMappingException e) {
15. e.printStackTrace();
16. } catch (IOException e) {
17. e.printStackTrace();
18. }
19. if("json".equals(contentType2)){
20. response.setContentType(SystemHWUtil.RESPONSE_CONTENTTYPE_JSON_UTF);
21. }
22. return content;
23. }

Producible Media Types