Socket简单通信

Socket通信流程图

C# Socket代码实现

服务端：

using System;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace ServerManager
{
    class Program
    {
        static Socket server;   //服务器
        static void Main(string[] args)
        {
            int port = 8885;    //端口
            IPAddress ip = IPAddress.Any; // 侦听所有网络客户接口的客活动

            server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//使用指定的地址簇协议、套接字类型和通信协议 
            IPEndPoint endPoint = new IPEndPoint(ip, port);
            server.Bind(new IPEndPoint(ip, port));//绑定IP地址和端口号
            server.Listen(10); //设定最多有10个排队连接请求

            Console.WriteLine("建立连接");
            Socket socket = server.Accept(); //挂起，一直等客户端连接

            byte[] receive = new byte[1024];
            int length = socket.Receive(receive); // length 接收字节数组长度
            Console.WriteLine("接收到消息：" + Encoding.ASCII.GetString(receive,0,length));

            byte[] send = Encoding.ASCII.GetBytes("Success receive the message,send the back the message");
            socket.Send(send);
            Console.WriteLine("发送消息为：" + Encoding.ASCII.GetString(send));

            socket.Close(); 
            server.Close();
            Console.ReadLine();
        }
    }
}

客户端：

using System;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace ClientManager
{
    class Program
    {
        static Socket client;
        static void Main(string[] args)
        {
            int port = 8885;
            IPAddress ip = IPAddress.Parse("127.0.0.1"); //将IP地址字符串转换成IPAddress实例

            client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//使用指定的地址簇协议、套接字类型和通信协议
            IPEndPoint endPoint = new IPEndPoint(ip, port);// 用指定的ip和端口号初始化IPEndPoint实例
            client.Connect(endPoint); //与远程主机建立连接


            Console.WriteLine("开始发送消息");
            byte[] message = Encoding.ASCII.GetBytes("Connect the Server"); //通信时实际发送的是字节数组，所以要将发送消息转换字节
            client.Send(message);
            Console.WriteLine("发送消息为:" + Encoding.ASCII.GetString(message));

            byte[] receive = new byte[1024];
            int length = client.Receive(receive); // length 接收字节数组长度
            Console.WriteLine("接收消息为：" + Encoding.ASCII.GetString(receive,0,length));

            client.Close(); //关闭连接
            Console.ReadLine();
        }
    }
}

C# WebSocket代码实现

更多学习请参考

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