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本文為大家分享了java實現簡單聊天軟件的具體代碼，供大家參考，具體內容如下
介紹
這是我自己學習Socket時寫的，用到了多線程，Socket的知識，還有Java的IO技術，并且做了一個Java的UI，廢話不多說，先上效果圖
SendThread
這個類是用來實現數據的發送的，當按鍵按下時，會調用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("將數據寫入到流中");
} 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
這個類實現的功能是維護一個阻塞線程，來對端口進行監聽，接受收到的信息，每當收到信息時，都會顯示。
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("連接出錯");
}
}
@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("線程將接受到的數據寫入對話框出錯");
}
}
}
}
ChatWindow
這個類是UI的實現，通過綁定各個按鈕的操作來實現別的功能
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);
//第一個panel
JPanel panel1 = new JPanel(new GridLayout(4, 2));
// JPanel panel1 = new JPanel(new (4, 2));
panel1.setSize(400, 75);
panel1.add(new JLabel("當前機器的IP地址是:"));
try {
panel1.add(new JLabel(InetAddress.getLocalHost().getHostAddress()));
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
panel1.add(new JLabel("當前機器的IP地址是:" + "Unknown"));
}
panel1.add(new JLabel("當前對話的端口是:"));
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);
//第二個panel
JPanel panel2 = new JPanel(new FlowLayout(FlowLayout.LEADING));
panel2.setSize(400,200);
panel2.add(new JLabel("收到的內容"));
receiveText = new JTextArea(15,30);
receiveText.setEditable(false);
receiveText.setAutoscrolls(true);
JScrollPane jsp = new JScrollPane(receiveText);
panel2.add(jsp);
//第三個panel
// JPanel panel3 = new JPanel(new GridLayout(2, 1));
panel2.add(new JLabel("請輸入發送的內容"));
sendText = new JTextField(30);
sendText.setAutoscrolls(true);
panel2.add(sendText);
c.add(panel2,BorderLayout.CENTER);
//c.add(panel3);
//第四個panel
JPanel panel4 = new JPanel(new GridLayout(1, 0));
panel4.setSize(400,20);
receiveButton = new JButton("開始接受數據");
sendButton = new JButton("發送");
cancelButton = new JButton("取消");
panel4.add(receiveButton);
panel4.add(cancelButton);
panel4.add(sendButton);
c.add(panel4,BorderLayout.SOUTH);
//四個面板內容設置完畢
setVisible(true);
setResizable(false);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
private void ActionIni() {
//鍵盤動作
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){
//發送文本
sendThread.senMessage(remoteAddress.getText(), Integer.parseInt(remotePort.getText()), sendText.getText());
receiveText.setText(receiveText.getText() + "\n" + "發送:" + sendText.getText());
}
}
@Override
public void keyPressed(KeyEvent e) {
// TODO Auto-generated method stub
}
});
//取消按鈕的動作
cancelButton.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) {
//發送文本
sendThread.senMessage(remoteAddress.getText(), Integer.parseInt(remotePort.getText()), sendText.getText());
receiveText.setText(receiveText.getText() + "發送:" + 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);
}
//構造函數
public ChatWindow() {
GUIini();
ActionIni();
ThreadIni();
}
public void printError(String err){
System.out.println("Error occur:" + err);
}
//回調函數,用于接受從線程中返回的數據
public void setReceive(String receive){
receiveText.setText(receiveText.getText() + "收到:" + receive+ "\n" );
}
//當接受數據的線程開始工作以后，就調用該回調函數，設置當前聊天窗口使用的端口是哪個
public void setLocalPort(int localPortText){
localPort.setText(""+localPortText);
}
//放遠，這個是整個程序的起點
public static void main(String[] args) {
// TODO Auto-generated method stub
new ChatWindow();
}
}
如何使用
將工程導入到Eclipse中以后，運行兩次，因為這個程序不屬于單例模式，所以可以出現兩個窗口，在遠程端口，遠程地址那個輸入框中分別輸入另一個窗口中顯示的IP和端口號，接下來在輸入框中輸入要發送的文字就可以了
源碼下載：java實現簡單聊天軟件
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。
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