$.ajax({       type : "POST",       url : js_path + "/maintainAdd/add",       data : JSON.stringify(madd_data.editMaintain),       contentType : "application/json",       dataType : "json",       complete:function(msg) {         layer.msg("報修成功",{time:2000});         layer.close(madd_data.w_c_index);       }     }); 

<span style="white-space:pre;"> </span>@ResponseBody   @RequestMapping(value = "/add",method = RequestMethod.POST)   public void addMaintain(@RequestBody Maintain maintain){     this.save_maintain(maintain);   }