ajax请求不返回html代码的三种方式
ajax请求代码：
function ajaxSend() {
$.ajax({
url: “Test_Ajax.aspx”,
type: “post”,
data: { name: “ajax” },//如果请求的自身页面，为了在后台判断是不是ajax请求
error: function(xhr, textStatus, errorThown) {
alert(errorThown);
},
success: function(data) {
alert(data);
}
});
}
1、把.aspx页面的html代码删除，删除后代码如下（ajax请求的不是自身页面）
.aspx页面代码
<%@ Page Language=”C#” AutoEventWireup=”true” CodeBehind=”AjaxReceive.aspx.cs” Inherits=”testJqueryUI.ajax.AjaxReceive” %>
.aspx.cs页面代码如下
protected void Page_Load(object sender, EventArgs e)
{
Response.Write(“love life”);
}
2.通过clear和end方法实现
.aspx.cs代码如下
string name = Request["name"];
//如果请求的是自身页面则需要这一步，判断是不是ajax请求
if (!String.IsNullOrEmpty(name))
{
Response.Clear();
Response.Write(“hello the world”);
Response.End();
}
3、通过实现IHttpModul实现
httpmodul代码如下
public class AjaxModul : IHttpModule
{
#region IHttpModule Members
public void Dispose()
{
//throw new NotImplementedException();
}
public void Init(HttpApplication context)
{
context.ReleaseRequestState += AjaxFilter;
}
private void AjaxFilter(object sender, EventArgs e)
{
HttpRequest request = HttpContext.Current.Request;
HttpResponse response = HttpContext.Current.Response;
if (!string.IsNullOrEmpty(request["name"]))
{
HttpResponse reponse1 = HttpContext.Current.Response;
reponse1.Filter = new AjaxResponseFilter(reponse1.Filter);
}
}
#endregion
}
AjaxResponseFilter.cs代码如下
public class AjaxResponseFilter : Stream
{
private readonly StringBuilder html;
private Stream response;
/// <summary>
/// 所有要往页面输出的内容保存在html中
/// </summary>
/// <param name=”buffer”></param>
/// <param name=”offset”></param>
/// <param name=”coun
