[Java] Socket/ServerSocket/Thread 控制台聊天程序--两人任意聊

最新推荐文章于 2024-11-06 10:26:26 发布

ShanHaiyang

最新推荐文章于 2024-11-06 10:26:26 发布

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分类专栏： Java 文章标签：聊天 java thread dos string class

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本文介绍了一个基于Java的简单网络聊天室程序的设计与实现。该程序包括服务器端和客户端两部分，采用多线程处理收发消息，允许两端自由聊天。通过ServerSocket监听指定端口，客户端连接后可通过输入输出流交互。

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//服务器端代码 import java.io.*; import java.net.*; public class ServerTest3{ public static void main(String[] args){ try{ //设置sever端的链接 ServerSocket s = new ServerSocket(8888); Socket s1 = s.accept();//sever等待链接 //实例化输出流 OutputStream os = s1.getOutputStream(); DataOutputStream dos = new DataOutputStream(os); //实例化输入流 InputStream is = s1.getInputStream(); DataInputStream dis = new DataInputStream(is); //实例化两个线程的对象 Thread msr = new MyServerReader(dis); Thread msw = new MyServerWriter(dos); //启动线程 msr.start(); msw.start(); } //捕获异常 catch(SocketException e){ System.out.println(e); }catch(IOException e){ System.out.println(e); } } } //创建一个进程用来进行接收读取数据 class MyServerReader extends Thread{ private DataInputStream dis; public MyServerReader (DataInputStream dis){ this.dis = dis; } public void run(){ String msg; try{ while(true){ msg = dis.readUTF(); System.out.println("对方说:" + msg); if(msg.equals("bye")){ System.out.println("对方下线,程序退出"); System.exit(0); } } }catch(IOException e){ System.out.println(e); } } } //创建一个进程用来写入并发送数据 class MyServerWriter extends Thread{ private DataOutputStream dos; public MyServerWriter(DataOutputStream dos){ this.dos = dos; } public void run(){ InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); String msg; try{ while(true){ msg = br.readLine(); dos.writeUTF(msg); if(msg.equals("bye")){ System.out.println("自己下线,程序退出"); System.exit(0); } } }catch(IOException e){ System.out.println(e); } } }

//客户端代码 import java.io.*; import java.net.*; public class ClientTest3{ public static void main(String[] args){ try{ //链接sever端 Socket s1 = new Socket("127.0.0.1",8888); //实例化输入流 InputStream is = s1.getInputStream(); DataInputStream dis = new DataInputStream(is); //实例化输出流 OutputStream os = s1.getOutputStream(); DataOutputStream dos = new DataOutputStream(os); //实例化两个进程 Thread mcr = new MyClientReader(dis); Thread mcw = new MyClientWriter(dos); //启动两个进程 mcr.start(); mcw.start(); //捕获异常 }catch(SocketException e){ System.out.println(e); }catch(IOException e){ System.out.println(e); } } } //创建一个进程用来进行接收读取数据 class MyClientReader extends Thread{ private DataInputStream dis; public MyClientReader(DataInputStream dis){ this.dis = dis; } @Override public void run(){ String msg; try{ while(true){ msg = dis.readUTF(); System.out.println("对方说:"+msg); if(msg.equals("bye")){ System.out.println("对方下线,程序退出"); System.exit(0); } } }catch(IOException e){ System.out.println(e); } } } //创建一个进程用来写入并发送数据 class MyClientWriter extends Thread{ private DataOutputStream dos; public MyClientWriter(DataOutputStream dos){ this.dos = dos; } @Override public void run(){ InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); String msg; try{ while(true){ msg = br.readLine(); dos.writeUTF(msg); if(msg.equals("bye")){ System.out.println("自己下线,程序退出"); System.exit(0); } } }catch(IOException e){ System.out.println(e); } } }

打开两个控制台,先运行服务器端代码,再运行客户端代码, 两端可以自由聊天.