一个简单AJAX注册示例

前台页面代码：

Code

<%@ WebHandler Language="C#" Class="Handler" %>

using System;

using System.Web;

public class Handler : IHttpHandler {

public void ProcessRequest (HttpContext context) {

context.Response.ContentType = "text/plain";

string flag = context.Request.QueryString["flag"];

if (flag == "" || flag == null)

return;

if (flag.Equals("addAdmin"))

{

string userName = context.Request.QueryString["userName"].ToString();

if (userName == "test")

{

context.Response.Write("该用户已经存在");

}

else

{

context.Response.Write("你可以注册［" + userName + "］");

}

}

else if (flag.Equals("updateTitle"))

{

}

}

public bool IsReusable {

get {

return false;

}

}

}