ajax请求信息 servlet没接收到

Question

前台

$.ajax({       type:"get",//请求方式
       url:"S12",//发送请求地址
       data:'{username:"ssd"}',       //请求成功后的回调函数有两个参数
       success:function(data,textStatus){
           alert(data);
       }
       });

后台

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        //Cookie [] c =request.getCookies();

         request.setCharacterEncoding("UTF-8");

        PrintWriter out = response.getWriter();

        String s = request.getParameter("username");

        System.out.println(s);

        out.println(s);

后台request没有取到username怎么回事？

Answer 1

应该是get只支持url拼接吧，没试过。