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。