需要使用 RestSharp 禁用 SSL 证书验证

Question

我已使用 Postman 工具禁用 SSL 证书验证并发送了一个带有 4 个参数的 post 请求。这种方法 returns 是正确的响应，但我似乎无法使用 VB.Net 复制它。我正在使用 RestSharp 连接到 RESTful API，我正在使用 ServicePointManager 将认证验证回调设置为始终 returns true 的函数，但我的问题仍然存在：

Public Function AcceptAllCertifications(sender As Object, certification As X509Certificate, 
                    chain As X509Chain, sslPolicyErrors As SslPolicyErrors) As Boolean
    Return True
End Function

Public Function SendRequest() As Boolean

    ServicePointManager.ServerCertificateValidationCallback =
            New RemoteCertificateValidationCallback(AddressOf AcceptAllCertifications)

    Dim client = New RestClient(TokenEndPoint) 'A basic URI endpoint
    Dim request = New RestRequest(Method.POST)

    request.AddHeader("Content-Type", "application/x-www-form-urlencoded")

    request.AddParameter("grant_type", "client_credentials")
    request.AddParameter("scope", "write")
    request.AddParameter("client_id", "client-app")
    request.AddParameter("client_secret", "secret")

    response = client.Execute(request)
    Console.WriteLine(response.Content)
End Function

我总是得到：

{"The underlying connection was closed: An unexpected error occurred on a send."}

作为回应。我该如何解决这个问题？

Answer 1

该错误通常表示 ServicePointManager.SecurityProtocol 需要更改。你可以试试 TLS。请注意，此设置是通用的，因此此时一切都将是 TLS，除非您将其更改为 SSL。

需要使用 RestSharp 禁用 SSL 证书验证

Need to disable SSL certificate verification with RestSharp

vb.net

certificate

restsharp