Asp.net中C#使用Socket发送和接收TCP数据示例

时间：2022-06-25 08:12:43 编辑：袖梨来源：一聚教程网

程序代码

代码如下

复制代码

using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace ConsoleApplication1
{
    public static class SocketTest
    {
        private static Encoding encode = Encoding.Default;

///

/// 监听请求
///

        ///
        public static void Listen(int port)
        {
            Socket listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            listenSocket.Bind(new IPEndPoint(IPAddress.Any, port));
            listenSocket.Listen(100);
            Console.WriteLine("Listen " + port + " ...");

            while (true)
            {
                Socket acceptSocket = listenSocket.Accept();
                string receiveData = Receive(acceptSocket, 5000); //5 seconds timeout.
                Console.WriteLine("Receive：" + receiveData);
                acceptSocket.Send(encode.GetBytes("ok"));
                DestroySocket(acceptSocket); //import
            }
        }

///

/// 发送数据
///

        ///
        ///
        ///
        ///
        public static string Send(string host, int port, string data)
        {
            string result = string.Empty;

            Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            clientSocket.Connect(host, port);
            clientSocket.Send(encode.GetBytes(data));
            Console.WriteLine("Send：" + data);
            result = Receive(clientSocket, 5000 * 2); //5*2 seconds timeout.
            Console.WriteLine("Receive：" + result);
            DestroySocket(clientSocket);

return result;
}

///

/// 接收数据
///

        ///
        ///
        ///
        private static string Receive(Socket socket, int timeout)
        {
            string result = string.Empty;

            socket.ReceiveTimeout = timeout;
            List data = new List();
            byte[] buffer = new byte[1024];
            int length = 0;
            try
            {
                while ((length = socket.Receive(buffer)) > 0)
                {
                    for (int j = 0; j < length; j++)
                    {
                        data.Add(buffer[j]);
                    }
                    if (length < buffer.Length)
                    {
                        break;
                    }
                }
            }
            catch { }
            if (data.Count > 0)
            {
                result = encode.GetString(data.ToArray(), 0, data.Count);
            }

return result;
}

///

/// 销毁Socket对象
///

        ///
        private static void DestroySocket(Socket socket)
        {
            if (socket.Connected)
            {
                socket.Shutdown(SocketShutdown.Both);
            }
            socket.Close();
        }
    }
}

运行服务器监听数据：

代码如下	复制代码
SocketTest.Listen(8888);

发送和接收TCP数据：

SocketTest.Send("127.0.0.1", 8888, "www.111com.net");]

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