java实现简单聊天软件

java实现简单聊天软件

本文为大家分享了java实现简单聊天软件的具体代码，供大家参考，具体内容如下

介绍

这是我自己学习Socket时写的，用到了多线程，Socket的知识，还有Java的IO技术，并且做了一个Java的UI，废话不多说，先上效果图

SendThread

这个类是用来实现数据的发送的，当按键按下时，会调用sendMessage方法

public class SendThread {

ChatWindow chatWindow;

private String remoteIP = "";

private int port = 0;

private String message = "";

public SendThread(int port,ChatWindow window) {

chatWindow = window;

}

public void notRun() {

InetSocketAddress isa = new InetSocketAddress(remoteIP, port);

try {

Socket socket = new Socket();

socket.connect(isa);

OutputStreamWriter writer = new OutputStreamWriter(socket.getOutputStream());

writer.write(message);

writer.flush();

writer.close();

System.out.println("将数据写入到流中");

} catch (IOException e) {

e.printStackTrace();

}finally{

message = "";

}

}

public void senMessage(String host,int port,String message){

remoteIP = host;

this.port = port;

this.message = message;

notRun();

}

}

ReceiveThread

这个类实现的功能是维护一个阻塞线程，来对端口进行监听，接受收到的信息，每当收到信息时，都会显示。

public class ReceiveThread extends Thread {

private ServerSocket server;

private ChatWindow window;

public ReceiveThread(ChatWindow window) {

this.window = window;

try {

server = new ServerSocket(0);

window.setLocalPort(server.getLocalPort());

start();

} catch (IOException e) {

// TODO Auto-generated catch block

window.printError("连接出错");

}

}

@Override

public void run() {

// TODO Auto-generated method stub

while(true){

Socket socket;

try {

socket = server.accept();

InputStreamReader reader = new InputStreamReader(socket.getInputStream());

int c;

StringBuilder sb = new StringBuilder();

while((c = reader.read()) != -1){

sb.append((char)c);

}

window.setReceive(sb.toString());

} catch (IOException e) {

// TODO Auto-generated catch block

System.out.println("线程将接受到的数据写入对话框出错");

}

}

}

}

ChatWindow

这个类是UI的实现，通过绑定各个按钮的操作来实现别的功能

public class ChatWindow extends JFrame {

private JButton sendButton;

private JButton cancelButton;

private JButton receiveButton;

private JTextArea receiveText;

private JTextField sendText;

private JLabel localPort;

private JTextField remoteAddress;

private JTextField remotePort;

private SendThread sendThread;

private ReceiveThread receiveThread;

private void GUIini(){

Container c = this.getContentPane();

c.setLayout(new BorderLayout());

setSize(400, 500);

//第一个panel

JPanel panel1 = new JPanel(new GridLayout(4, 2));

// JPanel panel1 = new JPanel(new (4, 2));

panel1.setSize(400, 75);

panel1.add(new JLabel("当前机器的IP地址是:"));

try {

panel1.add(new JLabel(InetAddress.getLocalHost().getHostAddress()));

} catch (UnknownHostException e) {

// TODO Auto-generated catch block

panel1.add(new JLabel("当前机器的IP地址是:" + "Unknown"));

}

panel1.add(new JLabel("当前对话的端口是:"));

panel1.add(localPort = new JLabel(""+0));

panel1.add(new JLabel("Remote Host IP Address:"));

remoteAddress = new JTextField();

remoteAddress.setColumns(0);

panel1.add(remoteAddress);

panel1.add(new JLabel("Remote Host Port:"));

remotePort = new JTextField();

remotePort.setColumns(0);

panel1.add(remotePort);

c.add(panel1,BorderLayout.NORTH);

//第二个panel

JPanel panel2 = new JPanel(new FlowLayout(FlowLayout.LEADING));

panel2.setSize(400,200);

panel2.add(new JLabel("收到的内容"));

receiveText = new JTextArea(15,30);

receiveText.setEditable(false);

receiveText.setAutoscrolls(true);

jscrollPane jsp = new JScrollPane(receiveText);

panel2.add(jsp);

//第三个panel

// JPanel panel3 = new JPanel(new GridLayout(2, 1));

panel2.add(new JLabel("请输入发送的内容"));

sendText = new JTextField(30);

sendText.setAutoscrolls(true);

panel2.add(sendText);

c.add(panel2,BorderLayout.CENTER);

//c.add(panel3);

//第四个panel

JPanel panel4 = new JPanel(new GridLayout(1, 0));

panel4.setSize(400,20);

receiveButton = new JButton("开始接受数据");

sendButton = new JButton("发送");

cancelButton = new JButton("取消");

panel4.add(receiveButton);

panel4.add(cancelButton);

panel4.add(sendButton);

c.add(panel4,BorderLayout.SOUTH);

//四个面板内容设置完毕

setVisible(true);

setResizable(false);

setDefaultCloseOperation(EXIT_ON_CLOSE);

}

private void ActionIni() {

//键盘动作

this.addKeyListener(new KeyListener() {

@Override

public void keyTyped(KeyEvent e) {

}

@Override

public void keyReleased(KeyEvent e) {

// TODO Auto-generated method stub

if(e.getKeyCode() == KeyEvent.VK_ENTER){

//发送文本

sendThread.senMessage(remoteAddress.getText(), Integer.parseInt(remotePort.getText()), sendText.getText());

receiveText.setText(receiveText.getText() + "\n" + "发送:" + sendText.getText());

}

}

@Override

public void keyPressed(KeyEvent e) {

// TODO Auto-generated method stub

}

});

//取消按钮的动作

OMTHZKwgOcancelButton.addMouseListener(new MouseListener() {

@Override

public void mouseReleased(MouseEvent e) {

// TODO Auto-generated method stub

sendText.setText("");

}

@Override

public void mousePressed(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseExited(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseEntered(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseClicked(MouseEvent e) {

// TODO Auto-generated method stub

}

});

sendButton.addMouseListener(new MouseListener() {

@Override

public void mouseReleased(MouseEvent e) {

//发送文本

sendThread.senMessage(remoteAddress.getText(), Integer.parseInt(remotePort.getText()), sendText.getText());

receiveText.setText(receiveText.getText() + "发送:" + sendText.getText()+ "\n");

}

@Override

public void mousePressed(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseExited(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseEntered(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseClicked(MouseEvent e) {

// TODO Auto-generated method stub

}

});

}

private void ThreadIni() {

// TODO Auto-generated method stub

sendThread = new SendThread(0, this);

receiveThread = new ReceiveThread(this);

}

//构造函数

public ChatWindow() {

GUIini();

ActionIni();

ThreadIni();

}

public void printError(String err){

System.out.println("Error occur:" + err);

}

//回调函数,用于接受从线程中返回的数据

public void setReceive(String receive){

receiveText.setText(receiOMTHZKwgOveText.getText() + "收到:" + receive+ "\n" );

}

//当接受数据的线程开始工作以后，就调用该回调函数，设置当前聊天窗口使用的端口是哪个

public void setLocalPort(int localPortText){

localPort.setText(""+localPortText);

}

//放远，这个是整个程序的起点

public static void main(String[] args) {

// TODO Auto-generated method stub

new ChatWindow();

}

}

如何使用

将工程导入到Eclipse中以后，运行两次，因为这个程序不属于单例模式，所以可以出现两个窗口，在远程端口，远程地址那个输入框中分别输入另一个窗口中显示的IP和端口号，接下来在输入框中输入要发送的文字就可以了

源码下载：java实现简单聊天软件

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