Socket简易聊天工具

演示

• 代码运行如图，看起来还不错，哈哈哈

服务端

package qiu;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.print.Printable;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Calendar;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

/**
 *  简单聊天软件的服务器
 * */
public class MyServer extends JFrame implements ActionListener{

    JTextArea jTextArea =null;//用来显示纯文本的单行区域
    JTextField jTextField=null;//可以允许用来编辑单行文本
    JButton sendButton=null;
    JPanel jPanel=null;
    JScrollPane jScrollPane =null;
    //把信息发给客户端对象
    PrintWriter printWriter =null;
/**
  *  服务端的主函数
  * */
public static void main(String[] args) {
    // TODO Auto-generated method stub
       new MyServer();
}
/**
 *  服务端的构造函数,用来进行初始化
 * */
public MyServer(){
    //这里是对GUI的初始化
    jTextArea = new JTextArea();
    jTextField= new JTextField(20);
    sendButton= new JButton("发送");
    sendButton.addActionListener(this);
    sendButton.setActionCommand("send");
    jScrollPane= new JScrollPane(jTextArea);
    jPanel = new JPanel();
    jPanel.add(jTextField);//添加编辑框
    jPanel.add(sendButton);//添加按钮

    //将两个面板添加布局
    this.add(jScrollPane,BorderLayout.CENTER);
    this.add(jPanel,BorderLayout.SOUTH);

    this.setSize(400,300);
    this.setTitle("聊天服务器");
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置退出按钮
    this.setVisible(true);
    this.setResizable(true);    

    //下面是socket服务器的搭建
    try {
        //服务器监听
        ServerSocket ss = new ServerSocket(9988);
        //等待客户端连接
        Socket socket = ss.accept();
        //获得客户端发送过来的数据的流
        BufferedReader br = new BufferedReader
                (new InputStreamReader(socket.getInputStream()));
        printWriter = new PrintWriter(socket.getOutputStream(),true);
        //读取从客户端发送过来的信息
        while(true){
            String info = br.readLine();
            jTextArea.append("客户端 "+getTime()+"\r\n"+info+"\r\n");
        }

    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }   }
/**
 * 用来获取当前的时间
 * @return 当前的时间
 */
public String getTime(){
    //可以对每个单独时间域进行修改
    Calendar c = Calendar.getInstance();
    int hour = c.get(Calendar.HOUR_OF_DAY);//获取小时
    int minute = c.get(Calendar.MINUTE);
    int second = c.get(Calendar.SECOND);

    return hour+":"+minute+":"+second;  
   }

/**
 * 当button被点击的时候调用
 */
@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    //当按钮按下的时候调用
    if(e.getActionCommand().equals("send")){
        //把服务器在jTextField写的内容发送给客户端
        String info= jTextField.getText();
        jTextArea.append("服务器 "+getTime()+"\r\n"+info+"\r\n");
        printWriter.println(info);
        //清楚发送框内容
        jTextField.setText("");

        }   
    }
}

客户端

package qiu;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Calendar;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

/**
 * 简单聊天软件的客户端
 * */
public class MyClient extends JFrame implements ActionListener{

    JTextArea jTextArea=null;
    JTextField jTextField=null;
    JPanel jPanel=null;
    JScrollPane jScrollPane=null;
    JButton sendButton=null;
    PrintWriter printWriter=null;

/**
  *  客户端的主函数
  * */
public static void main(String[] args) {
    // TODO Auto-generated method stub
      new MyClient();
}
/**
 * 客户端构造函数用来初始化
 * */
public MyClient(){
    //GUI初始化
    jTextArea= new JTextArea();
    jTextField=new JTextField(20);
    sendButton= new JButton("发送");
    sendButton.addActionListener(this);
    sendButton.setActionCommand("send");
    jScrollPane=new JScrollPane(jTextArea);
    jPanel=new JPanel();

    jPanel.add(jTextField);
    jPanel.add(sendButton);

    this.add(jScrollPane,BorderLayout.CENTER);
    this.add(jPanel,BorderLayout.SOUTH);

    this.setSize(400, 300);
    this.setTitle("聊天客户端");
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setVisible(true);
    this.setResizable(true);    

    //socket通信代码
     try {
        Socket s= new Socket("127.0.0.1",9988);
        BufferedReader br = new BufferedReader
                (new InputStreamReader(s.getInputStream()));
        printWriter= new PrintWriter(s.getOutputStream(),true);
        while(true){
            //不停的读取服务器发过来的信息
            String string=br.readLine();
            jTextArea.append("服务器 "+getTime()+"\r\n"+string+"\r\n");
            }

    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

/**
  * 用来获取当前的时间
  * @return 当前的时间
  */
public String getTime(){
    //可以对每个单独时间域进行修改
    Calendar c = Calendar.getInstance();
    int hour = c.get(Calendar.HOUR_OF_DAY);//获取小时
    int minute = c.get(Calendar.MINUTE);
    int second = c.get(Calendar.SECOND);

    return hour+":"+minute+":"+second;  
}
/**
  * 当button被点击的时候调用
  */
@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    if(sendButton.getActionCommand().equals("send")){
        String info= jTextField.getText();
        //将客户端发送的信息发送给服务端
        jTextArea.append("客户端 "+getTime()+"\r\n"+info+"\r\n");
        printWriter.println(info);
        jTextField.setText("");
        }
    }
}