.net 抓取 SSL時出現錯誤（Could not create SSL/TLS secure channel）－夜市小霸王

Nov 22 Sun 2020 03:57
.net 抓取 SSL時出現錯誤（Could not create SSL/TLS secure channel）

最近抓取網頁會出現錯誤
Could not create SSL/TLS secure channel

不過前幾天都還正常，可能是對方升級了網路SSL協定，只要在程式第一行補上這句即可

System.Net.ServicePointManager.SecurityProtocol = DirectCast(3072, System.Net.SecurityProtocolType) Or DirectCast(768, System.Net.SecurityProtocolType) Or DirectCast(192, System.Net.SecurityProtocolType) Or DirectCast(48, System.Net.SecurityProtocolType)