Json对象（ajax返回一个json对象）

walleyekneel · 发表于 2013-1-23 01:33:15

一般处理程序
<%@ WebHandler Language="C#" Class="ajaxTest" %>

using System;
using System.Web;
using System.Web.Script.Serialization;

public class Person1
{
public string Name { get; set; }
public string Age { get; set; }
}
public class ajaxTest : IHttpHandler {

public void ProcessRequest (HttpContext context) {
      context.Response.ContentType = "text/plain";

      JavaScriptSerializer jss = new JavaScriptSerializer();

      Person1 p2 = new Person1();
      p2.Name = "ckg";
      p2.Age = "22";
      //context.Response.Write("1111");
      var txt = jss.Serialize(p2);
      context.Response.Write(txt);
}

public bool IsReusable {
      get {
         return false;
      }
}

}

前台
ajaxJson.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>无标题页</title>

<script src="js/jquery-1.4.1.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript">
      var xmlHttp = null;
      function createXMLHttp()
      {
         if(window.ActiveXObject)
            {
                  xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
         else if(window.XMLHttpRequest)
            {
                  xmlHttp = new XMLHttpRequest();
            }
      }
      function checka()
      {
         createXMLHttp();
            var txt=$("#Text1").val();
            var url = "ajaxTest.ashx?txt="+txt;
            xmlHttp.open("post",url,true);//采用post传输数据不会中断，并且传输容量可以达到4M
            xmlHttp.onreadystatechange = sub;
            xmlHttp.send();
      }
      function sub()
      {
         if(xmlHttp.readyState == 4&&xmlHttp.status==200)
         {
            var txt=xmlHttp.ResponseText;
            $("#Text2").val(txt);
         }
      }

//以下是jquery的AJAX
$(function(){
   $("#Button2").click(function(){
      var value=$("#Text1").val();
      $.post("ajaxTest.ashx?"+new Date(),{txt:value},function(data,textStatus){
            //  alert(data);
            var arry=$.parseJSON(data);
            alert(arry.Name);
            alert(textStatus);

      });
   // alert(value);
   });
})

</script>

</head>
<body>
<input id="Text1" type="text" />
<input id="Button1" type="button" value="ajax测试"  />
<input id="Button2" type="button" value="ajax测试jquery"  />
<input id="Text2" type="text" />
</body>
</html>

		自动登录	找回密码
密码			立即注册