我有WebClient的问题。
它非常慢。从一个网站下载字符串需要大约3-5秒钟的时间。我没有任何网络问题。
这是我的修改后的WebClient。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
namespace StatusChecker
{
class WebClientEx: WebClient
{
public CookieContainer CookieContainer { get; private set; }
public WebClientEx()
{
CookieContainer = new CookieContainer();
ServicePointManager.Expect100Continue = false;
Encoding = System.Text.Encoding.UTF8;
WebRequest.DefaultWebProxy = null;
Proxy = null;
}
public void ClearCookies()
{
CookieContainer = new CookieContainer();
}
protected override WebRequest GetWebRequest(Uri address)
{
var request = base.GetWebRequest(address);
if (request is HttpWebRequest)
{
(request as HttpWebRequest).CookieContainer = CookieContainer;
}
return request;
}
}
}
更新:在wireshark中我看到单个DownloadString正在发送和接收数千个数据包。