jsp response.getWriter().write(json) 传 ajax json

 System.out.println(reString.toString());
       
        JSONObject jo=new JSONObject();
        jo.put("level", "警告");
        jo.put("msg", "1");
       
        System.out.println(jo.toString());
        response.setCharacterEncoding("UTF-8");
        response.getWriter().write(jo.toString());

 
    jQuery.post(url,{}, function(data) { 
       
        alert(data);
        var aa=("(" + data + ")")

        alert(aa.level);

JQuery为Input输入框赋值

$("#name").val("lee");或者$("#name").attr("value","lee");