解决“未能创建 SSL/TLS 安全通道”异常 

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3
                                       | SecurityProtocolType.Tls
                                       | SecurityProtocolType.Tls11
                                       | SecurityProtocolType.Tls12;

net4.0环境则加

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3
                                       | SecurityProtocolType.Tls
                                       | (SecurityProtocolType)0x300 //Tls11
                                       | (SecurityProtocolType)0xC00; //Tls12
posted @ 2023-05-10 13:20  痞子无赖  阅读(172)  评论(0)  编辑  收藏  举报