发送Ajax请求获取JSON格式数据

Aspx前端页面：

    <script type="text/javascript">
        $(function () {

            $.getJSON("Ajax/TestAjax.ashx?_=" + Math.random(), function (json) {  //发送请求
                        $('#result').html(json.result);
                        $('#message').html(json.message);
                    });
            $('#<%=btnAdd.ClientID %>').click=function () {
             }
            
        });
    </script>

ajax一般处理程序页面：

namespace WebFormTest.Ajax
{
    /// <summary>
    /// $codebehindclassname$ 的摘要说明
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    public class TestAjax : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            //string json ="{"Person":[{"Age":18,"Name":"张三","Sex":"男"}]}";
            
            StringBuilder successMessage = new StringBuilder();
            StringBuilder failedMessage = new StringBuilder();
            successMessage.Append(@"11	11	11
22	22	22
33	33	33
"); // 	制表转义符（空格效果） 
换行转义符
            failedMessage.Append(@"11	11	11
22	22	22
33	33	33
");

            string result = "结果信息";
            // \r\n转义后为
在前端浏览器解析后为换行
            string message = "发放失败：\r\n" + failedMessage.ToString() + "\r\n\r\n发放成功：\r\n" + successMessage.ToString(); 
            
            string json = "{"result":"" + result + "","message":"" + message + ""}"; //注意转义
            context.Response.Write(json);
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}