关于c# socket 同步通信的简单程序
C#socket通信
关于C#socket通信,分为同步和异步通信,本文简单介绍一下同步通信。
通信两端分别为客户端(Client)和服务器(Server):
(1)Cient:
1:建立一个Socket对像;
2:用socket对像的Connect()方法以上面建立的EndPoint对像做为参数,向服务器发出连接请求;
3:如果连接成功,就用socket对像的Send()方法向服务器发送信息;
4:用socket对像的Receive()方法接受服务器发来的信息 ;
5:通信结束后一定记得关闭socket;
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net.Sockets;
using System.Net;
namespace Client
{ class Program
{
static Socket ClientSocket;
static void Main( string [] args)
{
String IP = "127.0.0.1" ;
int port =8885 ;
IPAddress ip = IPAddress.Parse(IP); //将IP地址字符串转换成IPAddress实例
ClientSocket = 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
ClientSocket.Connect(endPoint); //与远程主机建立连接
Console.WriteLine( "开始发送消息" );
byte [] message = Encoding.UTF8.GetBytes( "hh 你是个大傻 B! 收到了没?" ); //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
ClientSocket.Send(message);
Console.WriteLine( "发送消息为:" + Encoding.UTF8.GetString(message));
byte [] receive = new byte [1024];
int length = ClientSocket.Receive(receive); // length 接收字节数组长度
Console.WriteLine( "接收消息为:" + Encoding.UTF8.GetString(receive));
ClientSocket.Close(); //关闭连接
}
}
} |
(2)Server:
1:建立一个Socket对像;
2:用socket对像的Bind()方法绑定EndPoint;
3:用socket对像的Listen()方法开始监听;
4:接受到客户端的连接,用socket对像的Accept()方法创建新的socket对像用于和请求的客户端进行通信;
5:用新的socket对象接收(Receive)和发送(Send)消息。
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net.Sockets;
using System.Net;
using System.Threading;
namespace Server
{ class Program
{
static Socket ReceiveSocket;
static void Main( string [] args)
{
int port = 8885;
IPAddress ip = IPAddress.Any; // 侦听所有网络客户接口的客活动
ReceiveSocket = 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 <br> ReceiveSocket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.ReuseAddress,true); //有关套接字设置
IPEndPoint endPoint = new IPEndPoint(ip,port);
ReceiveSocket.Bind( new IPEndPoint(ip, port)); //绑定IP地址和端口号
ReceiveSocket.Listen(10); //设定最多有10个排队连接请求
Console.WriteLine( "建立连接" );
Socket socket = ReceiveSocket.Accept();
byte [] receive = new byte [1024];
socket.Receive(receive);
Console.WriteLine( "接收到消息:" + Encoding.UTF8.GetString(receive));
byte [] send = Encoding.UTF8.GetBytes( "hh 你也是个大傻B 收到了!" );
socket.Send(send);
Console.WriteLine( "发送消息为:" +Encoding.UTF8.GetString(send));
}
}
} |
客户端:
服务端: