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我已经使用Postman工具禁用了SSL证书验证，并发送了带有4个参数的发布请求。此方法返回正确的响应，但我似乎无法复制这使用VB.Net。我使用RestSharp连接到一个RESTful API和我设置的认证验证回调到一个函数的，使用ServicePointManager总是返回true，但我的问题仍然存在：需要使用RestSharp禁用SSL证书验证
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。我怎样才能解决这个问题？
尝试搞乱ServicePointManager.SecurityProtocol的值。它可能需要TLS。 – N0Alias
@NoAlias谢谢。我不得不使用： 'ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12' 然后它工作！ – Mayron
很高兴工作。我不想将它作为基于猜测的答案发布，但是由于您确认了它的工作，我添加了比上述评论更彻底的答案。 – N0Alias