Question

我在客户端TCP / IP应用程序中使用Socket类将我的客户端连接到服务器。

我有以下代码：

var endPoint = new IPEndPoint(IPAddress.Parse(IP), port);
var client = new Socket(AddressFamily.InterNetwork, SocketType.Stream,
                        ProtocolType.Tcp);

client.Connect(endPoint);

try
{
    while (true)
    {
        // Do work...
        // Receive/Send data from/to server
    }
}
catch (SocketException)
{
    /* At some point the server disconnects...
    Exception catched because the server close the connection
    Socket error 10054 - WSAECONNRESET */

    // So I try to reconnect
    if(client.Connected == false)
    {
        /* The following line throws a InvalidOperationException.
        Message: After disconnecting the socket, you can reconnect only 
        asynchronously from a different EndPoint. BeginConnect must be 
        called on a thread that will not close until the operation completes.*/
        client.Connect(endPoint);   

        /* So I try instead Socket.BeginConnect, but the following line
        throws a SocketException 10061 - WSAECONNREFUSED */
        client.BeginConnect(endPoint, ConnectCallback, client);

        /* And also the following code throws a 
            SocketException 10061 - WSAECONNREFUSED */
        client = new Socket(AddressFamily.InterNetwork, SocketType.Stream,
                                ProtocolType.Tcp);
        client.Connect(endPoint);
    }
}

Here套接字错误列表。

因此，在某些时候服务器关闭连接，我需要知道什么是最好的方法来了解服务器什么时候准备接受另一个连接以及如何再次连接到同一个端点。

Answer 1

WSAECONNREFUSED表示服务器不接受您的连接请求。

您必须重试连接才能在重试之间休息几秒钟。客户端无法再次知道服务器何时可用，而无需尝试连接。

使用Socket连接到同一个端点

1 个答案: