Java网络编程之(一) TCP的简单连接

Java网络编程之(一): TCP的简单连接

这是一组非常基本的连接，

局域网中电脑A用作服务端，IP为192.168,31.168

电脑B用作客户端，IP为192.168.31.132

一. 服务端TcpServer_1.java

import java.net.*;
import java.io.IOException;
import java.io.PrintStream;

public class TcpServer_1
{
	public static void main(String[] args)throws IOException
	{
		//创建一个ServerSocket, 用于监听客户端Socket的连接请求
		ServerSocket ss = new ServerSocket(30000);
		//用循环不断接收来自客户端的请求
		while(true)
		{
			//每当接收到一个客户端的请求，服务器也对应产生一个Socket
			Socket s = ss.accept();
			//将Socket对应的输出流包装成printStream
			PrintStream ps = new PrintStream(s.getOutputStream());
			ps.println("You have received message form server!");
			//关闭输出流，关闭socket
			ps.close();
			s.close();
		}
	}
}

二. 客户端TcpClient_1.java

import java.net.*;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class TcpClient_1
{
	public static void main(String[] args)throws IOException
	{
		Socket socket = new Socket("192.168.31.168", 30000);
		//将Socket对应的输入流包装成BufferedReader
		BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
		String line = br.readLine();
		System.out.println("Get message form Server: " + line);
		//关闭输入流，关闭Socket;
		br.close();
		socket.close();
	}
}

三. 先在电脑A上运行服务端，然后在电脑B上运行客户端。运行结果:

服务端:

客户端: