c#"请求被中止: 未能创建 SSL/TLS 安全通道"解决方法

admin

在.NET 4.5中，对此的解决方案是

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
如果您没有.NET 4.5，那么请使用

ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;


要执行请求前加上

ServicePointManager.SecurityProtocol = (SecurityProtocolType)192 | (SecurityProtocolType)768 | (SecurityProtocolType)3072;