本文实例为大家分享了java实现简单聊天室的具体代码，供大家参考，具体内容如下

先整理下思路：

1.创建一个通信服务端，传入端口号和相关的流后等待客户端连接，并初始化图形界面。

2.创建一个JFrame，用于写出聊天的界面，这里界面名称由其他类传入。

3.把客户端创建的方法写进JFrame(当然这里很粗糙的方法)

4.设置按钮的监听事件，发送消息和离线功能

首先创建一个服务端的类

import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

import com.jero.jframe.ChatSocketJFrame;

//创建服务端

public class ChatServerSocket{

//构造初始化方法

public ChatServerSocket(String name,int port) throws IOException{

//创建Socket服务连接对象

ServerSocket serverSocket = new ServerSocket(port);

//等待客户端连接

Socket client = serverSocket.accept();

//初始化聊天界面

try {

new ChatSocketJFrame(name,client);

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

//关闭流

serverSocket.close();

}

public static void main(String[] args) throws Exception{

new ChatServerSocket("服务端",8001);//启动服务端，指定网名和端口

}

}

package com.jero.jframe;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.InetAddress;

import java.net.Socket;

import java.net.UnknownHostException;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.border.EmptyBorder;

import com.jero.socket.ChatServerSocket;

import javax.swing.JTextPane;

import javax.swing.JTextField;

import javax.swing.JButton;

import javax.swing.JTextArea;

public class ChatSocketJFrame extends JFrame implements ActionListener {

private Socket socket;

private String name;

private JButton BT_SEND,BT_LEAVE,BT_LOGIN;

private JTextArea textArea;

private JPanel contentPane;

private JTextField textField;

private PrintWriter cout;

/**

* Launch the application.

* @throws Exception

* @throws IOException

* @throws UnknownHostException

*/

public static void main(String[] args) throws UnknownHostException, IOException, Exception {

//实例化界面以及客户端

new ChatSocketJFrame("客户端","127.0.0.1",8001);

}

/**

* Create the frame.

*/

public ChatSocketJFrame(String name, Socket socket)throws Exception, IOException {

//聊天室界面

super("聊天室"+name+" "+InetAddress.getLocalHost()+" "+socket.getPort());

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setBounds(100, 100, 733, 519);

this.textArea = new JTextArea();

this.textArea.setEditable(false);

this.getContentPane().add(new JScrollPane(this.textArea));

JPanel panel = new JPanel();

this.getContentPane().add(panel, "South");

this.textField = new JTextField(16);

panel.add(this.textField);

BT_SEND = new JButton("发送");

panel.add(BT_SEND);

BT_SEND.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

System.out.println("按钮已点击");

cout.println(name+"说: "+textField.getText()+"\n");

textArea.append("我说: "+textField.getText()+"\n");

textField.setText("");

}

});

BT_LEAVE = new JButton("离线");

panel.add(BT_LEAVE);

BT_LEAVE.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

textArea.append("我离线");

cout.println(name+"离线\n"+"bye");

BT_LEAVE.setEnabled(false);

BT_SEND.setEnabled(false);

}

});

this.setVisible(true);

//开始创建通信

this.socket = socket;

this.name = name;

//获得Socket的输出流并立即刷新

this.cout = new PrintWriter(socket.getOutputStream(),true);

//把网名传给对方

this.cout.println(name);

//获得Socket对象的输入流，创建字符输入流

BufferedReader buff = new BufferedReader(new InputStreamReader(socket.getInputStream()));

//接受对方的网名

String aline = buff.readLine();

//显示对方发送的内容

textArea.append("连接"+aline+"成功！！\n");

aline = buff.readLine();

//如果内容不为空并且对方不离线，则相互传送消息

while(aline!=null&&!aline.equals("bye")){

textArea.append(aline+"\r\n");

aline = buff.readLine();

}

//当对方离线时，关闭所有的流

buff.close();

cout.close();

socket.close();

//把按钮设置为不可操作

BT_SEND.setEnabled(false);

BT_LEAVE.setEnabled(false);

}

/**

* @wbp.parser.constructor

*/

public ChatSocketJFrame(String name,String host,int port) throws UnknownHostException, IOException, Exception{

//创建客户端

this(name,new Socket(host,port));

}

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

//可以把动作监听写进此函数，这个就不演示了

}

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。