Question

c# tcplient and TcpServer 如何实现两边都可以发送与接收数据

目前我只能实现 服务器端接收数据 用户端发送数据。求大师指点 两边可同时发送与接收数据。最好是有源代码，给出实际的例子。急！！！！

Answer 1

我之前用socket做的，大体思路跟你讲一下，在读取到一个客户端是开一条线程保留这个socket，当传送数据是再开一条线程即时通讯。这样服务器可以连接多个客户端，也可以同步接收发送。

Answer 2

服务器端：
namespace SocketServer
{
class Program
{
private static byte[] result = new byte[1024];
private static int myProt = 8885; //端口
static Socket serverSocket;
static void Main(string[] args)
{
//服务器IP地址
IPAddress ip = IPAddress.Parse("127.0.0.1");
serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
serverSocket.Bind(new IPEndPoint(ip, myProt)); //绑定IP地址：端口
serverSocket.Listen(10); //设定最多10个排队连接请求
Console.WriteLine("启动监听{0}成功", serverSocket.LocalEndPoint.ToString());
//通过Clientsoket发送数据
Thread myThread = new Thread(ListenClientConnect);
myThread.Start();
Console.ReadLine();
}

/// <summary>
/// 监听客户端连接
/// </summary>
private static void ListenClientConnect()
{
while (true)
{
Socket clientSocket = serverSocket.Accept();
clientSocket.Send(Encoding.ASCII.GetBytes("Server Say Hello"));
Thread receiveThread = new Thread(ReceiveMessage);
receiveThread.Start(clientSocket);
}
}

/// <summary>
/// 接收消息
/// </summary>
/// <param name="clientSocket"></param>
private static void ReceiveMessage(object clientSocket)
{
Socket myClientSocket = (Socket)clientSocket;
while (true)
{
try
{
//通过clientSocket接收数据
int receiveNumber = myClientSocket.Receive(result);
Console.WriteLine("接收客户端{0}消息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber));
}
catch(Exception ex)
{
Console.WriteLine(ex.Message);
myClientSocket.Shutdown(SocketShutdown.Both);
myClientSocket.Close();
break;
}
}
}
}
}

客户端：
namespace SocketClient
{
class Program
{
private static byte[] result = new byte[1024];
static void Main(string[] args)
{
//设定服务器IP地址
IPAddress ip = IPAddress.Parse("127.0.0.1");
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
clientSocket.Connect(new IPEndPoint(ip, 8885)); //配置服务器IP与端口
Console.WriteLine("连接服务器成功");
}
catch
{
Console.WriteLine("连接服务器失败，请按回车键退出！");
return;
}
//通过clientSocket接收数据
int receiveLength = clientSocket.Receive(result);
Console.WriteLine("接收服务器消息：{0}",Encoding.ASCII.GetString(result,0,receiveLength));
//通过 clientSocket 发送数据
for (int i = 0; i < 10; i++)
{
try
{
Thread.Sleep(1000); //等待1秒钟
string sendMessage = "client send Message Hellp" + DateTime.Now;
clientSocket.Send(Encoding.ASCII.GetBytes(sendMessage));
Console.WriteLine("向服务器发送消息：{0}" + sendMessage);
}
catch
{
clientSocket.Shutdown(SocketShutdown.Both);
clientSocket.Close();
break;
}
}
Console.WriteLine("发送完毕，按回车键退出");
Console.ReadLine();
}
}
}