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

来源：互联网发布：淘宝首页海报图片编辑：程序博客网时间：2024/05/22 11:53

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：

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            req.CookieContainer = cookie;            req.Method = "GET";            req.ProtocolVersion = HttpVersion.Version10;            HttpWebResponse res = (HttpWebResponse)req.GetResponse();            StreamReader rd = new StreamReader(res.GetResponseStream());            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

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

记录一下，以防后错！

1 0