login.java

一个简单的银行管理系统

/*
 * Login.java
 *
 * Created on 2007年1月21日, 下午12:23
 */

package javaapplication1;
import java.awt.Toolkit;
import java.sql.*;
import javax.swing.JOptionPane;
/**
 *
 * @author  zzz
 */
public class Login extends javax.swing.JFrame {
    
    /** Creates new form Login */
    public Login() {
        connectDB();
        initComponents();
        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        //-------设置窗口位置居中---------------------------------------------------------------        
        int locationX=(int)(Toolkit.getDefaultToolkit().getScreenSize().getWidth()-getSize().getWidth())/2; 
        int locationY=(int)(Toolkit.getDefaultToolkit().getScreenSize().getHeight()-getSize().getHeight())/2;
        setLocation(locationX,locationY);
        //--------------------------------------------------------------------------------------
    }
    
    /** 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=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        loginIDField = new javax.swing.JTextField();
        loginPasswordField = new javax.swing.JPasswordField();
        commitButton = new javax.swing.JButton();
        resetButton = new javax.swing.JButton();
        cancelButton = new javax.swing.JButton();
        staffField = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jLabel1.setText("\u5de5\u4f5c\u4eba\u5458\u767b\u9646");

        jLabel2.setText("\u5e10\u53f7");

        jLabel3.setText("\u5bc6\u7801");

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

        resetButton.setText("\u91cd\u7f6e");
        resetButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                resetButtonActionPerformed(evt);
            }
        });

        cancelButton.setText("\u53d6\u6d88");
        cancelButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                cancelButtonActionPerformed(evt);
            }
        });

        jLabel4.setText("\u5458\u5de5\u53f7");

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().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(jLabel1))
                    .add(layout.createSequentialGroup()
                        .add(29, 29, 29)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                            .add(layout.createSequentialGroup()
                                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                                    .add(jLabel3)
                                    .add(jLabel2))
                                .add(14, 14, 14))
                            .add(layout.createSequentialGroup()
                                .add(jLabel4)
                                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)))
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
                            .add(loginPasswordField)
                            .add(loginIDField, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 120, Short.MAX_VALUE)
                            .add(org.jdesktop.layout.GroupLayout.LEADING, staffField)))
                    .add(layout.createSequentialGroup()
                        .add(21, 21, 21)
                        .add(commitButton)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                        .add(resetButton)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                        .add(cancelButton)))
                .addContainerGap(49, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(jLabel1)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel2)
                    .add(loginIDField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jLabel3)
                    .add(loginPasswordField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel4)
                    .add(staffField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(31, 31, 31)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(commitButton)
                    .add(resetButton)
                    .add(cancelButton))
                .addContainerGap(30, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void cancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cancelButtonActionPerformed
// TODO 将在此处添加您的处理代码：
        this.dispose();
        try
        {
            login.close();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }//GEN-LAST:event_cancelButtonActionPerformed

    private void resetButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_resetButtonActionPerformed
// TODO 将在此处添加您的处理代码：
        staffField.setText("");
        loginIDField.setText("");
        loginPasswordField.setText("");
    }//GEN-LAST:event_resetButtonActionPerformed

    private void commitButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_commitButtonActionPerformed
// TODO 将在此处添加您的处理代码：
        String staffID = " "+staffField.getText();
        String loginID = loginIDField.getText();
        String password = loginPasswordField.getText();

        try
        {
            String sql = "select * from staffOperate where loginID = '"+loginID+"'";
       //     String sql = "select * from staffOperate where staffID = '"+staffID+"' and loginID = '"+loginID+"' and loginPassword = '"+password+"'";
            Statement stat = login.createStatement();
            ResultSet result = stat.executeQuery(sql);
            if(!result.next())
            {
                JOptionPane.showMessageDialog(null,"您输入的登陆帐号不对，请确认后重新输入！","出错",JOptionPane.ERROR_MESSAGE);
                loginIDField.setText("");
            }
            else
            {
                String sql1 = "select * from staffOperate where loginID = '"+loginID+"' and loginPassword = '"+password+"'";
                ResultSet result1 = stat.executeQuery(sql1);
                if(!result1.next())
                {
                    JOptionPane.showMessageDialog(null,"您输入的登陆密码不对，请确认后重新输入！","出错",JOptionPane.ERROR_MESSAGE);
                    loginPasswordField.setText("");
                }
                else
                {
                    String sql2 = "select * from staffOperate where staffID = '"+staffID+"' and loginID = '"+loginID+"' and loginPassword = '"+password+"'";
                    ResultSet result2 = stat.executeQuery(sql2);
                    if(!result2.next())
                    {
                        JOptionPane.showMessageDialog(null,"您输入的员工号不对，请确认后重新输入！","出错",JOptionPane.ERROR_MESSAGE);
                        staffField.setText("");
                    }
                    else
                    {
                        this.dispose();
                        new ServiceFrame(staffID).setVisible(true);
                    }
                }
            }
         }
         catch(Exception insertAccountException)
         {
            insertAccountException.printStackTrace();
         }
    }//GEN-LAST:event_commitButtonActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Login().setVisible(true);
            }
        });
    }
    //连接数据库操作－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
    private void connectDB()
    {
        String dbUrl = "jdbc:odbc:afei";
        String user = "scott";
        String password = "tiger";
        try
        {
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            login = DriverManager.getConnection(dbUrl,user,password);
        }
        catch(Exception connectException)
        {
            connectException.printStackTrace();
        }
    }
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton cancelButton;
    private javax.swing.JButton commitButton;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JTextField loginIDField;
    private javax.swing.JPasswordField loginPasswordField;
    private javax.swing.JButton resetButton;
    private javax.swing.JTextField staffField;
    // 变量声明结束//GEN-END:variables
    private Connection login;
}