Question

我已经在.net 3.5框架中开发了一个应用程序，并使用以下代码通过它使用了Web服务

Module SslProtocolsExtensions
    Public Const Tls12 As SslProtocols = CType(&HC00, SslProtocols)
    Public Const Tls11 As SslProtocols = CType(&H300, SslProtocols)
End Module

Module SecurityProtocolTypeExtensions
    Public Const Tls12 As SecurityProtocolType = CType(SslProtocolsExtensions.Tls12, SecurityProtocolType)
    Public Const Tls11 As SecurityProtocolType = CType(SslProtocolsExtensions.Tls11, SecurityProtocolType)
    Public Const SystemDefault As SecurityProtocolType = CType(0, SecurityProtocolType)
End Module

Dim response As String
        Dim client As New WebClient()
        Dim credentials As String

        credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes("gujarat_ws_client" + ":" + "guj@r@t_C|ient"))
        client.Headers.Add("Authorization", "Basic " & credentials)
        client.Headers.Add(HttpRequestHeader.ContentType, "application/xml")
        If blnCookie Then
            client.Headers.Add(HttpRequestHeader.Cookie, strCookie)
        End If

        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls Or SecurityProtocolType.Ssl3 Or SecurityProtocolTypeExtensions.Tls11
        Try
            Dim strEaushadhiURI = "https://XXXXXXXXXXX/AMH/1031180700004"
            System.Net.ServicePointManager.ServerCertificateValidationCallback = _
  Function(se As Object, _
  cert As System.Security.Cryptography.X509Certificates.X509Certificate, _
  chain As System.Security.Cryptography.X509Certificates.X509Chain, _
  sslerror As System.Net.Security.SslPolicyErrors) True
            response = client.DownloadString(New Uri(strEaushadhiURI))
            System.Net.ServicePointManager.ServerCertificateValidationCallback = Nothing
            TextBox1.Text = response
        Catch ex As WebException
            Throw ex
        End Try

在我们的开发应用程序中，它运行良好，但是当我将其部署到生产环境中时，这给了我一个错误。我已经在三种不同的操作系统Windows 7，Windows Server 2008 R2和Windows Server 2003 R2中对其进行了测试

System.NotSupportedException：不支持所请求的安全协议。

我需要安装其他软件或补丁吗？

我经历了Microsoft Support

但是当我安装此修补程序时，出现错误“此修补程序不适用于您的系统”

System.NotSupportedException：不支持所请求的安全协议

0 个答案: