loginchat.java

这是一个使用Java编写的像QQ一样的即时通讯软件

package client;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;

import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingConstants;

public class LoginChat {

	private JPasswordField passwordField;

	private JTextField textField;

	/**
	 * 给服务端发送消息的输出流
	 */
	public static DataOutputStream sendToServer;

	/**
	 * 接受服务端发送的消息的输入流
	 */
	public static DataInputStream receiveFromServer;
	
	/**
	 * 该客户端的Socket
	 */
	public static Socket clientSocket;

	private JFrame frame;

	/**
	 * Launch the application
	 * 
	 * @param args
	 */
	public static void main(String args[]) {
		
		try {
			
			//UIManager.setLookAndFeel((LookAndFeel) Class.forName("com.incors.plaf.kunststoff.KunststoffLookAndFeel").newInstance());
			//UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
			
			LoginChat window = new LoginChat();
			
			window.frame.setVisible(true);
			
		} catch (Exception e) {
			
			e.printStackTrace();
		}
	}

	/**
	 * Create the application
	 */
	public LoginChat() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame
	 */
	private void initialize() {
		
		frame = new JFrame();
		
		frame.getContentPane().setLayout(null);
		
		frame.setResizable(false);
		
		frame.setBounds(100, 100, 500, 375);
		
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		final JLabel label = new JLabel();
		label.setBounds(106, 115, 42, 20);
		label.setFont(new Font("", Font.PLAIN, 14));
		label.setText("号码：");
		frame.getContentPane().add(label);

		textField = new JTextField();
		textField.setBounds(148, 116, 196, 20);
		frame.getContentPane().add(textField);

		final JLabel label_1 = new JLabel();
		label_1.setBounds(106, 172, 42, 20);
		label_1.setFont(new Font("", Font.PLAIN, 14));
		label_1.setText("密码：");
		frame.getContentPane().add(label_1);

		passwordField = new JPasswordField();
		passwordField.setBounds(148, 172, 196, 21);
		frame.getContentPane().add(passwordField);

		final JEditorPane localhostEditorPane = new JEditorPane();
		localhostEditorPane.setText("localhost");
		localhostEditorPane.setBounds(106, 303, 176, 21);
		frame.getContentPane().add(localhostEditorPane);

		final JEditorPane editorPane_1 = new JEditorPane();
		editorPane_1.setText("8000");
		editorPane_1.setBounds(324, 303, 68, 21);
		frame.getContentPane().add(editorPane_1);

		final JLabel label_2 = new JLabel();
		label_2.setBounds(10, 303, 100, 21);
		label_2.setHorizontalAlignment(SwingConstants.CENTER);
		label_2.setText("服务器IP地址：");
		frame.getContentPane().add(label_2);

		final JLabel label_3 = new JLabel();
		label_3.setBounds(288, 306, 43, 15);
		label_3.setText("端口：");
		frame.getContentPane().add(label_3);
		
		final JButton button = new JButton();
		button.setText("登陆");
		button.setBounds(149, 217, 80, 24);
		button.addActionListener(new ActionListener() {

			@SuppressWarnings("deprecation")
			public void actionPerformed(final ActionEvent e) {

				String text = passwordField.getText();
				if (!textField.getText().trim().trim().equals("")
						&& !text.trim().equals("")) {

					try {

						clientSocket = new Socket(localhostEditorPane.getText().trim(), new Integer(editorPane_1.getText().trim()));

						receiveFromServer = new DataInputStream(clientSocket
								.getInputStream());
	
						
						sendToServer = new DataOutputStream(clientSocket
								.getOutputStream());

						/*
						 * 这个成员登陆
						 */
						sendToServer.writeUTF("Login@"
								+ new Integer(textField.getText().trim()) + "@"
										+ text.trim());

						new Client(receiveFromServer,sendToServer,frame,new Integer(textField.getText().trim())).start();

					} catch (UnknownHostException eee) {

						JOptionPane.showMessageDialog(frame, "服务器没有开启", "连接失败",
								JOptionPane.ERROR_MESSAGE);

					} catch (IOException ee) {

						JOptionPane.showMessageDialog(frame, "服务器没有开启", "连接失败",
								JOptionPane.ERROR_MESSAGE);

					}

				} else {

					JOptionPane.showMessageDialog(frame, "请完整输入号码和密码",
							"输入完整性检查", JOptionPane.ERROR_MESSAGE);
				}
			}
		});

		frame.getContentPane().add(button);

		final JButton button_1 = new JButton();
		button_1.setText("取消");
		button_1.setBounds(269, 217, 75, 24);
		frame.getContentPane().add(button_1);
	}

}