changepasswordframe.java

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/*
 * ChangePasswordFrame.java
 *
 * Created on 2008年5月7日, 下午8:27
 */

package javaproject;

import java.io.*;
import javax.swing.JOptionPane;

/**
 *
 * @author  Tian Fengping
 */
public class ChangePasswordFrame extends javax.swing.JFrame {
    
    /** Creates new form ChangePasswordFrame */
    public ChangePasswordFrame() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        oldJPasswordField = new javax.swing.JPasswordField();
        firstNewJPasswordField = new javax.swing.JPasswordField();
        oldJButton = new javax.swing.JButton();
        firstNewJButton = new javax.swing.JButton();
        jLabel3 = new javax.swing.JLabel();
        secondNewJPasswordField = new javax.swing.JPasswordField();
        secondNewJButton = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("修改密码");

        jLabel1.setText("输入旧密码：");

        jLabel2.setText("输入新密码：");

        firstNewJPasswordField.setEditable(false);

        oldJButton.setText("确定");
        oldJButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                oldJButtonActionPerformed(evt);
            }
        });

        firstNewJButton.setText("确定");
        firstNewJButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                firstNewJButtonActionPerformed(evt);
            }
        });

        jLabel3.setText("再输入一次新密码：");

        secondNewJPasswordField.setEditable(false);

        secondNewJButton.setText("确定");
        secondNewJButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                secondNewJButtonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel3)
                        .addGap(28, 28, 28))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, 145, Short.MAX_VALUE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 87, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(firstNewJPasswordField, javax.swing.GroupLayout.DEFAULT_SIZE, 155, Short.MAX_VALUE)
                    .addComponent(oldJPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, 151, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(secondNewJPasswordField, javax.swing.GroupLayout.DEFAULT_SIZE, 155, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(firstNewJButton, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(secondNewJButton, 0, 0, Short.MAX_VALUE)
                    .addComponent(oldJButton, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addGap(23, 23, 23))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(39, 39, 39)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(oldJButton)
                    .addComponent(oldJPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1))
                .addGap(53, 53, 53)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(firstNewJPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(firstNewJButton))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 47, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(secondNewJButton)
                    .addComponent(secondNewJPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(25, 25, 25))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents
        PrintWriter input;
        BufferedReader output;
        File passwordFile;
    private void oldJButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_oldJButtonActionPerformed
        // TODO add your handling code here:
        String oldPassword="";
        try {
                passwordFile = new File("Password.dat");
                FileReader inputFile = new FileReader(passwordFile);
                output=new BufferedReader(inputFile);
                oldPassword=output.readLine();
            } catch (IOException ex) {
             JOptionPane.showMessageDialog(null,"Make sure your input!");
            }
        if(String.valueOf(oldJPasswordField.getPassword()).equals(oldPassword))
        {

            firstNewJPasswordField.setEditable(true);           
        }
        else
        {
            JOptionPane.showMessageDialog(null,"The password is wrong!Input again!","Wrong Password!",JOptionPane.WARNING_MESSAGE);
        }
}//GEN-LAST:event_oldJButtonActionPerformed

    private void secondNewJButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_secondNewJButtonActionPerformed
        // TODO add your handling code here:
        if(String.valueOf(firstNewJPasswordField.getPassword()).equals(String.valueOf(secondNewJPasswordField.getPassword()))&&!String.valueOf(secondNewJPasswordField.getPassword()).equals(""))
        {
            try {
                passwordFile = new File("Password.dat");
                FileWriter outputFile = new FileWriter(passwordFile);
                input=new PrintWriter(outputFile);
                input.println(String.valueOf(firstNewJPasswordField.getPassword()));
                input.close();
                JOptionPane.showMessageDialog(null, "Successful!");
                this.setVisible(false);
            } catch (IOException ex) {
                JOptionPane.showMessageDialog(null,"Make sure your input!");
            }  
        }
        else if(!String.valueOf(firstNewJPasswordField.getPassword()).equals(String.valueOf(secondNewJPasswordField.getPassword()))&&!String.valueOf(secondNewJPasswordField.getPassword()).equals(""))
        {
            JOptionPane.showMessageDialog(null,"The two inputs are differenet! Input again!","Wrong Input!",JOptionPane.WARNING_MESSAGE);    
        }
        else if(String.valueOf(firstNewJPasswordField.getPassword()).equals(String.valueOf(secondNewJPasswordField.getPassword()))&&String.valueOf(secondNewJPasswordField.getPassword()).equals(""))
        {
             try {
                passwordFile = new File("Password.dat");
                FileWriter outputFile = new FileWriter(passwordFile);
                input=new PrintWriter(outputFile);
                input.println(String.valueOf(firstNewJPasswordField.getPassword()));
                input.close();
            } catch (IOException ex) {
                JOptionPane.showMessageDialog(null,"Make sure your input!");
            }  
            JOptionPane.showMessageDialog(null,"It has no password!","NO Password!",JOptionPane.WARNING_MESSAGE);
            JOptionPane.showMessageDialog(null, "Successful!");
            this.setVisible(false);
        }
}//GEN-LAST:event_secondNewJButtonActionPerformed

    private void firstNewJButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_firstNewJButtonActionPerformed
        // TODO add your handling code here:
       String firstNewPassword=String.valueOf(firstNewJPasswordField.getPassword());
       secondNewJPasswordField.setEditable(true);
}//GEN-LAST:event_firstNewJButtonActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new ChangePasswordFrame().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton firstNewJButton;
    private javax.swing.JPasswordField firstNewJPasswordField;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JButton oldJButton;
    private javax.swing.JPasswordField oldJPasswordField;
    private javax.swing.JButton secondNewJButton;
    private javax.swing.JPasswordField secondNewJPasswordField;
    // End of variables declaration//GEN-END:variables
    
}