c#socket同步通信

再次特别感谢张子阳老师的文章，读后深感益处。

废话不多说，先贴代码

这是服务器端代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Data.SqlClient;
namespace SeverConsole {
    class Program {
        const int bufferSize = 8192;//接受的最大字节数

        static void Main(string[] args) {
            Console.WriteLine("Sever is runing");
            IPAddress ip = new IPAddress( new byte[]{127,0,0,1});
            TcpListener tcpListener = new TcpListener(ip, 8500);//监听对象
            tcpListener.Start();

            while (true) {
                try{
                TcpClient remoteClient = tcpListener.AcceptTcpClient();//接受客户端的连接请求，会在此处等待。 不会继虚向下执行
                Console.WriteLine(@"有客户端连入，{0}<--{1}", remoteClient.Client.LocalEndPoint, remoteClient.Client.RemoteEndPoint);

                NetworkStream streamFromClient = remoteClient.GetStream();//获取连接到客户端的流
                byte[] buffer = new byte[bufferSize];
                int bytesRead = streamFromClient.Read(buffer, 0, bufferSize);//从客户端和服务器获取的流都是二进制形式的
                Console.WriteLine("read {0} bytes from client", bytesRead);
                string msg = Encoding.Unicode.GetString(buffer, 0, bytesRead);
                Console.WriteLine("Received: {0}", msg);

                string magSend = msg.ToUpper();
                buffer = Encoding.Unicode.GetBytes(magSend);
                lock (streamFromClient) {//为了保证数据的完整性以及安全性  锁定数据流
                    streamFromClient.Write(buffer, 0, buffer.Length);
                    Console.WriteLine("send: {0}", msg.ToUpper());
                }

                }catch(Exception ex){
                    Console.WriteLine(ex.Message);
                }

            }
            Console.WriteLine(@"please press 'Q' to exit");
            //Console.ReadLine();
            ConsoleKey key;
            do {
                key = Console.ReadKey().Key;
            } while (key != ConsoleKey.Q);
        }
    }
}

这是客户端代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;
namespace clientConsole {
    class Program {
        const int bufferSize = 8192;
        static void Main(string[] args) {
            Console.WriteLine("Client is running!");

            TcpClient client;
            for (int i = 0; i < 4; i++) {
                 client = new TcpClient();
                try {
                    client.Connect("127.0.0.1", 8500);
                } catch (Exception ex) {
                    Console.WriteLine(ex.Message);
                }
                Console.WriteLine("connecting successful");
                Console.WriteLine("{0}-->{1}", client.Client.LocalEndPoint, client.Client.RemoteEndPoint);
                string msg = "let me to connect with you ";
                NetworkStream clientToSever = client.GetStream();
                byte[] buffer = Encoding.Unicode.GetBytes(msg);
                clientToSever.Write(buffer, 0, buffer.Length);
                int t = buffer.Length;
                Console.WriteLine("Send: {0}", msg);
                lock (clientToSever) {//
                    int bytesRead = clientToSever.Read(buffer, 0, t);
                    msg = Encoding.Unicode.GetString(buffer, 0, buffer.Length);
                    Console.WriteLine("Received: {0}", msg);
                }
            }
            ConsoleKey key;
            do {
                key = Console.ReadKey().Key;
            } while (key != ConsoleKey.Q);

        }
    }
}

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