Jan 28 2022

ASP.NET Core : 十三.httpClient.GetAsync 报SSL错误的问题

阿里云代理

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一、问题描绘

把原来的程序从2.0升级到2.1，突然发现原本正常工作的httpClient.GetAsync("xxxx")竟然不工作了。

为了打扫项目中其他引证的搅扰，新建了一个洁净的2.1的项目，Main里直接调用

var client = new HttpClient(); var task = client.GetAsync(url);

仍然是报错。

错误信息如下：

System.AggregateException: One or more errors occurred. (The SSL connection could not be established, see inner exception.) ---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> Interop+Crypto+OpenSslCryptographicException: error:2006D002:BIO routines:BIO_new_file:system lib  at Interop.Crypto.CheckValidOpenSslHandle(SafeHandle handle)  at Internal.Cryptography.Pal.StorePal.LoadMachineStores()  at *****************************************

原本以为是升级runtime的时分出错了，从头装置后仍然是这样。

体系环境：

OS：CentOS 7  Host (useful for support):  Version: 2.1.2  Commit:  811c3ce6c0  .NET Core runtimes installed:  Microsoft.AspNetCore.All 2.1.2 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]  Microsoft.AspNetCore.App 2.1.2 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]  Microsoft.NETCore.App 2.1.2 [/usr/share/dotnet/shared/Microsoft.NETCore.App]