java聊天室：本人做的例子(一)

最新推荐文章于 2025-06-04 23:03:38 发布

原创最新推荐文章于 2025-06-04 23:03:38 发布 · 2.3k 阅读

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文章标签：

#聊天 #java #variables #socket #constructor #服务器

本文介绍了一个简单的Java聊天室项目的实现过程。服务器使用Java.net.ServerSocket监听特定端口，并通过线程处理客户端连接请求。客户端可以向服务器发送消息，服务器接收并显示这些消息。

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工作三年，我一直想用java写一个聊天室，最近不忙，终于忍不住开始动手写了：具体思路：1：服务器用java.net.ServerSocket监听特定端口，客户端连接服务器，我用的工具是：netbean6.0+jdk1.6，下面是三个类，说明一下，服务器也是界面，所以必须写一个线程类单独启动一个线程进行端口的监听。我写的不好的地方希望高手给予指点，现在只实现服务器接收信息，我会努力完成全部功能。(注意一下：必须在jdk1.6下面才可以运行，有几个类是jdk1.5里面没有的。)

第一个：ServerWindow.java服务器界面:
package ftpupload;

import java.io.BufferedReader;
import java.io.IOException;
import java.lang.Thread;
import java.net.ServerSocket;

/*
* ServerWindow.java
*
* Created on 2008年5月7日, 上午10:00
*/
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
*
* @author DELL
*/
public class ServerWindow extends javax.swing.JFrame {

    /** Creates new form ServerWindow */
    public ServerWindow() {
            initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        messageDisplay = new javax.swing.JTextArea();
        jPanel1 = new javax.swing.JPanel();
        jButton2 = new javax.swing.JButton();
        jButton1 = new javax.swing.JButton();
        sendMessage = new javax.swing.JTextField();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTree1 = new javax.swing.JTree();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("服务器");
        setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        addComponentListener(new java.awt.event.ComponentAdapter() {
            public void componentShown(java.awt.event.ComponentEvent evt) {
                formComponentShown(evt);
            }
        });

        messageDisplay.setColumns(20);
        messageDisplay.setRows(5);
        messageDisplay.setName("messageDisplay"); // NOI18N
        jScrollPane1.setViewportView(messageDisplay);

getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);

jPanel1.setPreferredSize(new java.awt.Dimension(100, 50));

        jButton2.setText("清空");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        sendMessage.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                sendMessageActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addComponent(sendMessage, javax.swing.GroupLayout.DEFAULT_SIZE, 548, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 57, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jButton2)
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap())
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(sendMessage, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

jButton1.getAccessibleContext().setAccessibleName("send");

getContentPane().add(jPanel1, java.awt.BorderLayout.SOUTH);

jScrollPane2.setViewportView(jTree1);

getContentPane().add(jScrollPane2, java.awt.BorderLayout.LINE_END);

pack();
}// </editor-fold>

    private void formComponentShown(java.awt.event.ComponentEvent evt) {

    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

    }

    private void sendMessageActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
    }

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                    ServerWindow serverWindow = new ServerWindow();
                    serverWindow.setVisible(true);
            }
        });
    }
    public javax.swing.JTextArea getMessageDisplay(){
        return this.messageDisplay;
    }

    public void setMessageDisplay(javax.swing.JTextArea messageDisplay){
        this.messageDisplay=messageDisplay;
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTree jTree1;
    private javax.swing.JTextArea messageDisplay;
    private javax.swing.JTextField sendMessage;
    // End of variables declaration

}

第二个：ServerThread.java 服务器监听线程:
package ftpupload;

import java.io.BufferedReader;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

public class ServerThread extends Thread{
    private ServerSocket serverSocket;
    private Socket socket;
    private int port=12345;
    public void run(){
         ServerWindow serverWindow=new ServerWindow();
         serverWindow.setVisible(true);
         initServer(serverWindow);
    }
    void initServer(ServerWindow serverWindow){
    try {
           serverSocket = new ServerSocket(port);
           while(true){
               socket=serverSocket.accept();
                if(socket.isConnected()){
                    BufferedReader breader = new BufferedReader(new java.io.InputStreamReader(socket.getInputStream()));
                   serverWindow.getMessageDisplay().append(breader.readLine());
                }

            }
        } catch (IOException ex) {
            Logger.getLogger(ServerWindow.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public static void main(String args[]){
        new ServerThread().run();
    }
}

第三个：ClientWindow.java 客户端线程:
/*
* ClientWindow.java
*
* Created on 2008年5月7日, 上午10:19
*/

package ftpupload;

import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
*
* @author DELL
*/
public class ClientWindow extends javax.swing.JFrame {

    /** Creates new form ClientWindow */
    private int port = 12345;
    private String ip = "localhost";
    private Socket socket ;
    public ClientWindow() {

            initComponents();

    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jPanel1 = new javax.swing.JPanel();
        sendMessage = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTree1 = new javax.swing.JTree();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("客户端");

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);

jPanel1.setPreferredSize(new java.awt.Dimension(100, 50));

        jButton1.setText("发送");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

jButton2.setText("清空");

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addComponent(sendMessage, javax.swing.GroupLayout.DEFAULT_SIZE, 618, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton2)
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addContainerGap(11, Short.MAX_VALUE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 28, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 28, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(sendMessage, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap())
        );

getContentPane().add(jPanel1, java.awt.BorderLayout.PAGE_END);

jScrollPane2.setViewportView(jTree1);

getContentPane().add(jScrollPane2, java.awt.BorderLayout.LINE_END);

pack();
}// </editor-fold>

    private void sendMessageActionPerformed(java.awt.event.ActionEvent evt) {

}

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
       sendMessage(sendMessage.getText());
    }

    public void sendMessage(String text){
        try {
            socket = new Socket(ip, port);
            System.out.println("连接状态"+socket.isConnected());
            if (socket.isConnected()) {
                PrintStream ps = new PrintStream(socket.getOutputStream());
                ps.println(text);
            }
        } catch (UnknownHostException ex) {
            Logger.getLogger(ClientWindow.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(ClientWindow.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new ClientWindow().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTree jTree1;
    private javax.swing.JTextField sendMessage;
    // End of variables declaration

}