Java基于socket实现简易聊天室实例

时间:2022-02-22 01:33:07

本文实例讲述了Java基于socket实现简易聊天室的方法。分享给大家供大家参考。具体实现方法如下:

chatroomdemo.java

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package com.socket.demo;
import java.io.IOException;
import java.net.DatagramSocket;
public class ChatRoomDemo {
  /**
   * @param args
   * @throws IOException
   */
  public static void main(String[] args) throws IOException {
    System.out.println("----进入聊天室----");
    DatagramSocket send = new DatagramSocket();
    DatagramSocket rece = new DatagramSocket(10001);
    new Thread(new SendDemo(send)).start();// 启动发送端线程
    new Thread(new ReceiveDemo(rece)).start();// 启动接收端线程
  }
}

SendDemo.java

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package com.socket.demo;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
public class SendDemo implements Runnable {
  private DatagramSocket ds;
  // 有参数构造函数
  public SendDemo(DatagramSocket ds) {
    this.ds = ds;
  }
  @Override
  public void run() {
    try {
      BufferedReader bufr = new BufferedReader(new InputStreamReader(
          System.in));
      String line = null;
      while ((line = bufr.readLine()) != null) {
        byte[] buf = line.getBytes();
        /*
         * //192.168.1.255是ip段广播地址,发给这个IP的信息,
         * 在192.168.1.1-192.168.1.255的ip段的所有IP地址都能收到消息
         */
        DatagramPacket dp = new DatagramPacket(buf, buf.length,InetAddress.getByName("192.168.1.255"), 10001);
        ds.send(dp);
        if ("886".equals(line))
          break;
      }
      ds.close();
    } catch (Exception e) {
    }
  }
}

ReceiveDemo.java

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package com.socket.demo;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
public class ReceiveDemo implements Runnable {
  private DatagramSocket ds;
  public ReceiveDemo(DatagramSocket ds) {
    this.ds = ds;
  }
  @Override
  public void run() {
    try {
      while (true) {
        // 2,创建数据包。
        byte[] buf = new byte[1024];
        DatagramPacket dp = new DatagramPacket(buf, buf.length);
        // 3,使用接收方法将数据存储到数据包中。
        ds.receive(dp);// 阻塞式的。
        // 4,通过数据包对象的方法,解析其中的数据,比如,地址,端口,数据内容。
        String ip = dp.getAddress().getHostAddress();
        int port = dp.getPort();
        System.out.println("----port-----" + port);
        String text = new String(dp.getData(), 0, dp.getLength());
        System.out.println(ip + "::" + text);
        if (text.equals("886")) {
          System.out.println(ip + "....退出聊天室");
        }
      }
    } catch (Exception e) {
    }
  }
}

运行效果图如下:

Java基于socket实现简易聊天室实例

希望本文所述对大家的java程序设计有所帮助。