处理HttpWebRequest访问https有安全证书的问题

处理HttpWebRequest访问https有安全证书的问题（ 请求被中止: 未能创建 SSL/TLS 安全通道。）

string strUrl = "https://xx.xx.xx.xx:port/jk/xxx";

ServicePointManager.ServerCertificateValidationCallback += (s, cert, chain, sslPolicyErrors) => true;

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls;

 

WebRequest webReq = WebRequest.Create(strUrl);

//webReq.ContentType = "application/json";//application/x-www-form-urlencoded;charset=gb2312;

webReq.ContentType = "application/x-www-form-urlencoded;";

webReq.Method = "POST";

webReq.ContentLength = bytes.Length;

Stream stream = webReq.GetRequestStream();

stream.Write(bytes, 0, bytes.Length);

using (WebResponse webRes = webReq.GetResponse())

{

    Stream webResStream = webRes.GetResponseStream();

    StreamReader sr = new StreamReader(webResStream);

    strRet = sr.ReadToEnd();

}