jquery访问ashx文件示例代码_jquery

public class Login : IHttpHandler { 

public void ProcessRequest (HttpContext context) { 
context.Response.ContentType = "application/json"; 
//GET方式获取传递的数据 
//string username = context.Request.QueryString["username"]; 
//string password = context.Request.QueryString["password"]; 

//POST方式获取传递的数据 
string username = context.Request.Form["username"]; 
string password = context.Request.Form["password"]; 
string message = null; 
if (string.IsNullOrEmpty(username)) 
{ 
message = "用户名不能为空"; 
context.Response.Write("{\"success\":false,\"message\":\"" + message + "\"}");//此JSON格式非常重要，否则会执行jquery的的error函数 
context.Response.End(); 
} 
if (string.IsNullOrEmpty(password)) 
{ 
message = "密码不能为空"; 
context.Response.Write("{\"success\":false,\"message\":\"" + message + "\"}"); 
context.Response.End(); 
} 
if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password)) 
{ 
if (username.ToUpper() == "ADMIN" && password == "123") 
{ 
message = "登录成功"; 
context.Response.Write("{\"success\":true,\"message\":\"" + message + "\"}"); 
} 
else 
{ 
message = "用户名或密码错误"; 
context.Response.Write("{\"success\":false,\"message\":\"" + message + "\"}"); 
} 
} 
context.Response.End(); 

} 

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