Java线程的方式实现TCP通信的小案例

今天药忘吃喽~ 2022-05-29 06:15 164阅读 0赞

package cn.wlt.chat;

import java.io.BufferedReader;  
import java.io.IOException;  
import java.io.InputStream;  
import java.io.InputStreamReader;  
import java.net.InetAddress;  
import java.net.ServerSocket;  
import java.net.Socket;  
/\*\*  
\*服务器端  
\*/  
public class TCPServer \{  
//端口  
private int port;

public TCPServer(int port) {
        super();
        this.port = port;
        Recevice r=new Recevice();
        //创建线程
        Thread t= new Thread(r);
        //启动线程
        t.start();
    }
    
    class Recevice implements Runnable{
    
        @Override
        public void run() {
            ServerSocket ss=null;
            Socket s=null;
            BufferedReader br=null;
            try {
                //创建服务器端的服务套接字 Socket
                ss=new ServerSocket(port);
                System.out.println("服务器已经启动...");
                //接收Socket
                s = ss.accept();
                //获得客户端的IP
                InetAddress ia = s.getInetAddress();
                //获得输入流
                InputStream in = s.getInputStream();
                //字节流转换城字符流
                br=new BufferedReader(new InputStreamReader(in));
                String line=null;
                while((line=br.readLine())!=null){
                    if("exit".equals(line)){
                        System.out.println("欢迎使用...");
                        break;
                    }
                    System.out.println(ia.getHostAddress()+"说:"+line);
                }
                System.out.println("sssss");
            } catch (IOException e) {
                e.printStackTrace();
            }finally {
    
                    try {
                        if(br!=null)
                        br.close();
                        if(s!=null)
                        s.close();
                        if(ss!=null)
                        ss.close();
    
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
            }
        }
    }
        public static void main(String[] args) {
            new TCPServer(10000);
        }

--------------------

package cn.wlt.chat;

import java.io.BufferedReader;  
import java.io.BufferedWriter;  
import java.io.IOException;  
import java.io.InputStreamReader;  
import java.io.OutputStream;  
import java.io.OutputStreamWriter;  
import java.net.InetAddress;  
import java.net.Socket;  
import java.net.UnknownHostException;  
/\*\*  
\*客户端 测试的时候开启两个eclipse就可以啦  
\*/  
public class TCPClient \{  
private String ip;  
private int port;

public TCPClient(String ip, int port) {
        super();
        this.ip = ip;
        this.port = port;
        Sender s=new Sender();
        Thread t=new Thread(s);
        t.start();
    }
    
    class Sender implements Runnable {
    
        @Override
        public void run() {
            Socket s = null;
            BufferedReader br = null;
            BufferedWriter bw = null;
            try {
                s = new Socket(ip, port);
                // 从控制台输入
                br = new BufferedReader(new InputStreamReader(System.in));
                // 获得输出通道
                OutputStream out = s.getOutputStream();
                // 创建输出流
                bw = new BufferedWriter(new OutputStreamWriter(out));
                String line = null;
                while ((line = br.readLine()) != null) {
                    if ("exit".equals(line)) {
                        System.out.println("欢迎使用...");
                        break;
                    }
                    System.out.println("我说:\r\n" + line);
                    bw.write(line);
                    bw.newLine();
                    // 清缓存
                    bw.flush();
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
    
                try {
                    if (bw != null)
                        bw.close();
                    if (br != null)
                        br.close();
                    if (s != null)
                        s.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    
    }
    public static void main(String[] args) {
        try {
            new TCPClient(InetAddress.getLocalHost().getHostName(), 20000);
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
    }