@RequestMapping(
     value = "/parseJsonList",
     method = {RequestMethod.POST})
 public void saveDemoList(@RequestBody List<DemoDTO> demoList) {
   LogUtil.info("demoList = " + demoList);
 }
 @RequestMapping(
     value = "/parseJson",
     method = {RequestMethod.POST})
 public void saveDemo(@RequestBody DemoDTO demo) {
   LogUtil.info("demo = " + demo.toString());
 }