stupassword.java

学生成绩管理系统

/*
 * Password.java
 *
 * Created on 2007年11月14日, 下午8:30
 */

package javaapplication1;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JOptionPane;

/**
 *
 * @author  mis05
 */
public class Stupassword extends javax.swing.JPanel {
    
    /** Creates new form Password */
    public Stupassword() {
        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();
        jLabel3 = new javax.swing.JLabel();
        jPasswordField1 = new javax.swing.JPasswordField();
        jPasswordField2 = new javax.swing.JPasswordField();
        jButton1 = new javax.swing.JButton();
        jPasswordField3 = new javax.swing.JPasswordField();

        jLabel1.setText("\u539f\u5bc6\u7801");

        jLabel2.setText("\u65b0\u5bc6\u7801");

        jLabel3.setText("\u786e\u8ba4\u65b0\u5bc6\u7801");

        jButton1.setText("\u786e\u5b9a");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                change(evt);
            }
        });

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(90, 90, 90)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                            .add(jLabel1)
                            .add(jLabel2)
                            .add(jLabel3))
                        .add(21, 21, 21)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                            .add(jPasswordField3)
                            .add(jPasswordField2)
                            .add(jPasswordField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 102, Short.MAX_VALUE)))
                    .add(layout.createSequentialGroup()
                        .add(146, 146, 146)
                        .add(jButton1)))
                .addContainerGap(127, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(80, 80, 80)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel1)
                    .add(jPasswordField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(29, 29, 29)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel2)
                    .add(jPasswordField2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(30, 30, 30)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel3)
                    .add(jPasswordField3, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(23, 23, 23)
                .add(jButton1)
                .addContainerGap(43, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void change(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_change
char password1[] = jPasswordField1.getPassword();
char password2[] = jPasswordField2.getPassword();
char password3[] = jPasswordField3.getPassword();

String pass1 = "";
String pass2 = "";
String pass3 = "";
for( int count = 0; count < password1.length; count++ )
        pass1 += password1[ count ];
for( int count = 0; count < password2.length; count++ )
        pass2 += password2[ count ];
for( int count = 0; count < password3.length; count++ )
        pass3 += password3[ count ];

Statement sql;

try
{
    Conect conect=new Conect();
     sql=conect.dbConn.createStatement();
     String passWord = "";
     
     ResultSet resultset1 = sql.executeQuery("SELECT 密码 FROM 学生 WHERE 登录 = 1");
     while( resultset1.next() )
     {
         passWord = ( String ) resultset1.getObject(1);
     }
         
         if( pass1.equals(passWord) == false )
         {
             JOptionPane.showMessageDialog(null,"原密码错误","错误",JOptionPane.ERROR_MESSAGE);
         }
         else
         if( pass2.equals(pass3) )
         {
             String update = "UPDATE 学生 SET 密码='" + pass2 + "' WHERE 登录 = 1";
             int reg;
             reg = sql.executeUpdate( update );
             JOptionPane.showMessageDialog(null,"已成功修改密码","成功",JOptionPane.INFORMATION_MESSAGE);
         }
         else
         {
             JOptionPane.showMessageDialog(null,"两次输入新密码不相同错误","错误",JOptionPane.ERROR_MESSAGE);
         }
     
}

 catch(SQLException sqlException){
        JOptionPane.showMessageDialog(null,sqlException.getMessage(),"Database Error",JOptionPane.ERROR_MESSAGE);
        System.exit(1);}

   catch(ClassNotFoundException classNotFound){
       JOptionPane.showMessageDialog(null,classNotFound.getMessage(),"Driver Not Found",JOptionPane.ERROR_MESSAGE);
        System.exit(1);}// TODO add your handling code here:
    }//GEN-LAST:event_change
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Stupassword().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JPasswordField jPasswordField1;
    private javax.swing.JPasswordField jPasswordField2;
    private javax.swing.JPasswordField jPasswordField3;
    // End of variables declaration//GEN-END:variables
    
}