Question

运行客户端代码时，第一次尝试在IWcfServer接口上调用方法时，连接会立即中断，并显示以下消息：

+11:00

这一切在调用客户端代码的一秒钟内发生。

服务器代码：

System.ServiceModel.CommunicationException: 'The socket connection was aborted. 
This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. 
Local socket timeout was '00:00:59.6090000'.'

客户代码：

    Dim binding As New NetTcpBinding()

    binding.Security.Mode = SecurityMode.Transport
    binding.MaxReceivedMessageSize = 10000000
    binding.OpenTimeout = TimeSpan.FromSeconds(30)
    binding.SendTimeout = TimeSpan.FromSeconds(30)
    binding.ReceiveTimeout = TimeSpan.FromSeconds(30)

    Dim baseAddress As New Uri($"net.tcp://192.168.1.1:8025/WcfServer")

    _serviceHost = New ServiceHost(GetType(WcfServer), baseAddress)
    _serviceHost.AddServiceEndpoint(GetType(IWcfServer), binding, baseAddress)

    _serviceHost.Open()

在接口上调用方法非常简单：

    var binding = new NetTcpBinding();
    var url = $"net.tcp://192.168.1.1:8025/WcfServer";
    var address = new EndpointAddress(url);
    var channelFactory = new ChannelFactory<IWcfServer>(binding, address);

    ClientData = channelFactory.CreateChannel();

Answer 1

默认情况下，Nettcpbinding使用传输安全模式，并且客户端凭据类型为Windows。
因此，我们在调用服务时应在客户端提供Windows凭据。
此外，TCP通讯也受Windows防火墙保护，请关闭防火墙，然后重试。
最后，添加Console.Readline（）以防止服务主机自动关闭。

using (ServiceHost sh = new ServiceHost(typeof(MyService)))
            {
                sh.Open();
                Console.WriteLine("serivce is ready....");
                Console.ReadLine();
                sh.Close();
            }

已更新：
服务器端（控制台应用程序）

 class Program
{
    static void Main(string[] args)
    {
        using (ServiceHost sh = new ServiceHost(typeof(MyService)))
        {
            sh.Open();
            Console.WriteLine("serivce is ready....");
            Console.ReadLine();
            sh.Close();
        }
    }
}
[ServiceContract]
public interface IService
{
    [OperationContract]
    string Test();

}
public class MyService : IService
{

    public string Test()
    {
        return DateTime.Now.ToLongTimeString();
    }
}

App.config（服务器）

<system.serviceModel>
  <services>
    <service name="VM1.MyService">
      <endpoint address="" binding="netTcpBinding" contract="VM1.IService" >
      </endpoint>
      <endpoint address="mex" binding="mexTcpBinding" contract="IMetadataExchange" ></endpoint>
      <host>
        <baseAddresses>
          <add baseAddress="net.tcp://localhost:5566"/>
        </baseAddresses>
      </host>
    </service>
  </services>
  <behaviors>
    <serviceBehaviors>
      <behavior>
        <serviceMetadata />
      </behavior>
    </serviceBehaviors>
  </behaviors>
</system.serviceModel>

客户端。

  class Program
{
    static void Main(string[] args)
    {
        Uri uri = new Uri("net.tcp://10.157.13.69:5566");
        NetTcpBinding binding = new NetTcpBinding();
        ChannelFactory<IService> factory = new ChannelFactory<IService>(binding, new EndpointAddress(uri));
        factory.Credentials.Windows.ClientCredential.UserName = "administrator";
        factory.Credentials.Windows.ClientCredential.Password = "abcd1234!";
        IService service = factory.CreateChannel();
        try
        {
            var result = service.Test();
            Console.WriteLine(result);

        }
        catch (Exception)
        {

            throw;
        }
    }

}
[ServiceContract]
public interface IService
{
    [OperationContract]
    string Test();
}

结果。

请随时让我知道问题是否仍然存在。

WCF远程处理客户端连接错误：System.ServiceModel.CommunicationException

1 个答案: