springmvc整合jquer的json传值接收值

controller类里面的方法..

 

@ResponseBody
 @RequestMapping(params="method=getStreetListByDistrictID")
 public List getStreetListByDistrictID(HttpServletRequest request,
   HttpServletResponse response) throws Exception {
  //contentType:'application/json;charset=UTF-8',
  request.setCharacterEncoding("utf-8");
  request.getRequestDispatcher("application/json");
  String district_id=request.getParameter("district_id");
  System.out.println("**district_id**"+district_id);
  int id=Integer.parseInt(district_id);
  List streets=streetBiz.getStreetListByDistrictID(id);
  return streets;
 }

注:用了ResponseBody注释，返回的值会自动解析成json格式

 

function district_change(){
  var district_id=$("#district_id").val();
  $.ajax( {
  type : "POST",
  url : "xxxx",
  data :"district_id="+$("#district_id").val(),
  dataType : 'json',
  complete:function(date){ }
 }
 });
 }