服务端和客户端通信(TCP)

服务端

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;namespace TeachTcpServer
{class Program{static void Main(string[] args){#region 知识点一 回顾服务端需要做的事情//1.创建套接字Socket//2.用Bind方法将套接字和本地地址绑定//3.用Listen方法监听//4.用Accept方法等待客户端连接//5.建立连接、Accept返回新套接字//6.用Send、Receive相关方法收发数据//7.用Shutdown方法释放连接//8.关闭套接字#endregion#region 知识点二 实现服务端基本逻辑//1.创建套接字Socket(Tcp)Socket socketTcp = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//2.用Bind方法将套接字和本地地址绑定try{IPEndPoint ipPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8080);socketTcp.Bind(ipPoint);}catch (Exception e){Console.WriteLine("绑定报错" + e.Message);return;}//3.用Listen方法监听socketTcp.Listen(1024);Console.WriteLine("服务端绑定监听结束，等待客户端连入");//4.用Accept等待客户端连接//5.建立连接，Accept返回 新的套接字Socket socketClient= socketTcp.Accept();//6.用Send和Receive收发数据//发送socketClient.Send(Encoding.UTF8.GetBytes("欢迎连入服务端"));//接收byte[] result = new byte[1024];//返回值为接收到的字节数int receiveNum= socketClient.Receive(result);Console.WriteLine("接收到了{0}发来的消息{1}",socketClient.RemoteEndPoint.ToString(),Encoding.UTF8.GetString(result, 0, receiveNum));//7.用Shutdown方法释放连接socketClient.Shutdown(SocketShutdown.Both);//8.关闭套接字socketClient.Close();#endregion#region 总结//1.服务端开启的流程每次都是相同的//2.服务端的Accept、Send、Receive会阻塞主线程，要等到执行完毕才会执行后面的代码//抛出问题：//如何让服务器服务n个客户端#endregion Console.WriteLine("按任意键退出");Console.ReadKey();}}
}

客户端

using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
using UnityEngine;public class Lesson6 : MonoBehaviour
{// Start is called before the first frame updatevoid Start(){#region 知识点一 回顾客户端需要做的事情//1.创建套接字Socket//2.用Connect方法与客户端相连//3.用Send和Recive方法收发数据//4.用Shutdown方法释放连接//5.关闭套接字#endregion#region 知识点二 实现客户端基本逻辑//1.创建套接字SocketSocket socketTcp = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);IPEndPoint ipPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8080);//2.用Connect方法与客户端相连try{socketTcp.Connect(ipPoint);}catch (SocketException e){if (e.ErrorCode == 10061) print("服务器拒绝连接");else print("服务器连接失败" + e.ErrorCode);return;}//3.用Send和Recive方法收发数据//接收数据byte[] receive = new byte[1024];int receiveNum=socketTcp.Receive(receive);print("收到服务端发来的消息" + Encoding.UTF8.GetString(receive, 0, receiveNum));//发送socketTcp.Send(Encoding.UTF8.GetBytes("你好，我是客户端"));//4.用Shutdown方法释放连接socketTcp.Shutdown(SocketShutdown.Both);//5.关闭套接字socketTcp.Close();#endregion#region 总结//1.客户端连接的流程每次都是相同的//2.客户端的Connect、Send、Receive会阻塞主线程，要执行完毕才能继续执行后面的程序//问题：//如何让客户端的Socket不影响主线程，并且可以随时收发消息#endregion }// Update is called once per framevoid Update(){}
}

结果