findpassword1.java

用户需要注册

import java.awt.BorderLayout;

import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.ImageIcon;
import java.awt.Dimension;
import java.awt.Rectangle;
import javax.swing.BorderFactory;
import javax.swing.border.TitledBorder;
import java.awt.Font;
import java.awt.Color;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
//找回密码
public class findPassword1 extends JFrame {

	private static final long serialVersionUID = 1L;

	private JPanel jContentPane = null;

	private JLabel input = null;

	private JTextField username = null;

	private JButton next = null;

	private JButton cancel = null;

	private JLabel jLabel1 = null;

	private JLabel jLabel = null;

	/**
	 * This is the default constructor
	 */
	public findPassword1() {
		super();
		initialize();
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private void initialize() {
		this.setSize(329, 189);
		this.setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("/pic/key.png")));
		this.setContentPane(getJContentPane());
		this.setTitle("忘记密码");
		this.setResizable(false);
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jLabel = new JLabel();
			jLabel.setBounds(new Rectangle(0, 0, 322, 157));
			jLabel.setIcon(new ImageIcon(getClass().getResource("/pic/background3.jpg")));
			jLabel.setDisplayedMnemonic(KeyEvent.VK_UNDEFINED);
			jLabel1 = new JLabel();
			jLabel1.setBounds(new Rectangle(34, 4, 80, 80));
			jLabel1.setIcon(new ImageIcon(getClass().getResource("/pic/user1.png")));
			jLabel1.setText("JLabel");
			input = new JLabel();
			input.setBounds(new Rectangle(104, 38, 130, 30));
			input.setText("    请输入您的用户名");
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.setBorder(BorderFactory.createTitledBorder(null, " ", TitledBorder.RIGHT, TitledBorder.BELOW_TOP, new Font("Dialog", Font.BOLD, 12), new Color(51, 51, 51)));
			jContentPane.add(input, null);
			jContentPane.setBackground(Color.white);
			jContentPane.add(getUsername(), null);
			jContentPane.add(getNext(), null);
			jContentPane.add(getCancel(), null);
			jContentPane.add(jLabel1, null);
			jContentPane.add(jLabel, null);
		}
		return jContentPane;
	}

	/**
	 * This method initializes username	
	 * 	
	 * @return javax.swing.JTextField	
	 */
	private JTextField getUsername() {
		if (username == null) {
			username = new JTextField();
			username.setBounds(new Rectangle(104, 71, 130, 30));
		}
		return username;
	}

	/**
	 * This method initializes next	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getNext() {
		if (next == null) {
			next = new JButton();
			next.setBounds(new Rectangle(84, 110, 65, 30));
			next.setBackground(Color.white);
			next.setIcon(new ImageIcon(getClass().getResource("/pic/next.gif")));
			next.setBorderPainted(false);
			next.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					try
					{//向服务器发送用户名
						Socket socket;
						socket = new Socket("localhost",2000);
						PrintWriter toServer = new PrintWriter(socket.getOutputStream(),true);
						toServer.println(17);
						toServer.println(username.getText().trim());
					}
					catch(IOException ex)
					{
						System.err.println(ex);
					}
					try
					{
						ServerSocket serverSocket = new ServerSocket(2025);
						Socket  fromServer = serverSocket.accept();
						BufferedReader in = new BufferedReader(new InputStreamReader(fromServer.getInputStream()));
						String a= new String(in.readLine());
						int i =Integer.parseInt(a);
						String question=new String(in.readLine());
						if(i == 1)
						{
							findPassword f2=new findPassword(username.getText().trim(),question);
							f2.setVisible(true);
							dispose();
						}
						else if(i ==0)
						{
							String b="对不起，该用户名不存在";
							messagebox mb=new messagebox(b);
							mb.setVisible(true);
						}
						serverSocket.close();
					}
					catch(IOException ex)
					{
						System.err.println(ex);
					}
				}
			});
		}
		return next;
	}

	/**
	 * This method initializes cancel	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getCancel() {
		if (cancel == null) {
			cancel = new JButton();
			cancel.setBounds(new Rectangle(179, 110, 65, 30));
			cancel.setBorderPainted(false);
			cancel.setIcon(new ImageIcon(getClass().getResource("/pic/cancel.gif")));
			cancel.setBackground(Color.white);
			cancel.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					dispose();
				}
			});
		}
		return cancel;
	}

}  //  @jve:decl-index=0:visual-constraint="71,6"