HttpWebRequest请求百度 为何返回的是乱码

Question

using System;
using System.IO;
using System.Collections;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
using System.Net;
using System.Text;namespace WebApplication1
{
    /// <summary>
    /// $codebehindclassname$ 的摘要说明
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    public class Handler1 : IHttpHandler
    {        public void ProcessRequest(HttpContext context)
        {
            //context.Response.Write("beijule");
            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("http://www.baidu.com/");
            Encoding encoding = Encoding.UTF8;
            string responseData = String.Empty;
            req.Method = "GET";
            using (HttpWebResponse response = (HttpWebResponse)req.GetResponse())
            {                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    responseData = reader.ReadToEnd().ToString();
                }
                context.Response.Write(responseData);            }
        }        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}

Answer 1

我在a.aspx请求的 b.ashx
b.ashx就是上面那些代码了返回给a.aspx中文就乱码了

Answer 2

using (StreamReader reader = new StreamReader(response.GetResponseStream(),Encoding.GetEncoding("GB2312")))

Answer 3

Encoding encoding = Encoding.Defalue;
——百度是默认编码
——大众点评是 UTF8 编码