Socket通信--搭建一个服务器连接一个客户端进行通信

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当前实例只是简单的完成了一个服务器对一个客户，只能一对一，一对多会发生错误 一对多需要把连接进来的socket对象放入一个集合中

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导入.net
以及.net.sockets
//创建一个服务器类，
1.创建一个服务器通信，三个参数
2.IPEndPoint(ipAddress.parse(string ip),port);//传入ip地址以及端口号
3.bind
4.监听 listen
5.Accept//接收客户端的请求

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace Demo2048.网络通信
{
    class ServerDemo
    {
        Socket server;
        Socket user;
        bool isCreate;
        public ServerDemo(string ip,int port) {
            server = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
            try
            {
                server.Bind(new IPEndPoint(IPAddress.Parse(ip), port));
                server.Listen(0);//参数为0表示不限制连接进来的数量
                Console.WriteLine("等待用户的连接");
                isCreate = true;
            }
            catch (Exception e) {
                Console.WriteLine("ip格式不对");
            }

        }
        public void Start() {
            if (!isCreate) {
                Console.WriteLine("启动失败");
                return;
            }
            user=server.Accept();//接收并返回连接成功客户端套接字
            Console.WriteLine("用户链接成功");
            System.Threading.Thread th = new System.Threading.Thread(Recevie);
            th.Start();
            this.Send();
        }
        public void Recevie() {//接收客户端发回的消息
            while (true) {
                byte[] arr = new byte[1024 * 100];
                int num=user.Receive(arr);
                Console.WriteLine("用户：{0}", Encoding.Default.GetString(arr, 0, num));
            }
        }
        public void Send() {//发送消息给客户端
            while (true) {
                user.Send(Encoding.Default.GetBytes(Console.ReadLine()));
            }
        }
    }
}

//创建一个客户端类
1.创建一个客户端通信，三个参数，与服务器对应
2.连接
Class Client{
        Socket client;
        public Client(string ip, int port)
        {
            try
            {
                client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                IPEndPoint point = new IPEndPoint(IPAddress.Parse(ip), port);
                client.Connect(point);
                Console.WriteLine("连接服务器");
            }
            catch (FormatException e) {
                Console.WriteLine("不是有效路径");
            }
            catch (Exception e)
            {
                Console.WriteLine("未找到制定的服务器");
            }
        }
        public void Start(){
            Thread th =new Thread(ReceiveMessage);
            th.Start;
            this.SendMessage();
            }
        public void SendMessage(){
            while(true){
            string value =Console.readLine();
            byte[] data =Encoding.UTf8.GetBytes(value);
            client.Send(data,0,data.length);
            }
            }
          //接收服务器消息
        public void ReceiveMessage()
        {
            try
            {
                while (true)
                {
                    byte[] data = new byte[1024];
                    int num = client.Receive(data);
                    string value = Encoding.UTF8.GetString(data, 0, num);
                    Console.WriteLine("服务器说:" + value);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("与服务器断开连接");
            }
        }
    }
//实现类
         class Program
         {
               static void Main(string[] args)
               {
                   Client client = new Client("192.168.88.93",8888);
                   client.Start();
                }
         }

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