使用HttpWebRequest进行请求时发生错误:基础连接已关闭,发送时发生错误处理

时间:2024-09-24 10:34:38

原文地址:http://blog.****.net/hawksoft/article/details/21776009

最近调试原来的微信模拟登陆时发生了“基础连接已关闭,发送时发生错误”的错误提示,原来都是好好的,只是很久没用了。

出错代码如下:

  1. HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://mp.weixin.qq.com/cgi-bin/loginpage?t=wxm2-login&lang=zh_CN");///cgi-bin/loginpage?t=wxm2-login&lang=zh_CN
  2. req.CookieContainer = cookie;
  3. req.Method = "GET";
  4. req.ProtocolVersion = HttpVersion.Version10;
  5. HttpWebResponse res = (HttpWebResponse)req.GetResponse();
  6. StreamReader rd = new StreamReader(res.GetResponseStream());
  7. string theContent = rd.ReadToEnd();

经过一番Google和试验,答案既如此简单,增加如下一句:

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
通过代码如下:

HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://mp.weixin.qq.com/cgi-bin/loginpage?t=wxm2-login&lang=zh_CN");///cgi-bin/loginpage?t=wxm2-login&lang=zh_CN

  1. req.CookieContainer = cookie;
  2. req.Method = "GET";
  3. req.ProtocolVersion = HttpVersion.Version10;
  4. ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
  5. HttpWebResponse res = (HttpWebResponse)req.GetResponse();
  6. StreamReader rd = new StreamReader(res.GetResponseStream());
  7. string theContent = rd.ReadToEnd();

记录一下,以防后错!