user_load.java

车票预定系统用 java实现的……

/*
 * user_load.java
 *
 * Created on 2008年6月18日, 下午3:15
 */

package javaapplication1;
import java.awt.event.WindowEvent;
import javax.swing.*;
import java.awt.*;
import java.sql.*;
/**
 *
 * @author  Administrator
 */
public class user_load extends javax.swing.JFrame {
     Connection con;//创建对象
        Statement sql;
         ResultSet rs;
    /** Creates new form user_load */
    public user_load() {
        setTitle("用户登陆界面");
        setBounds(300,50,40,20);
        setResizable(false);
        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=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jPasswordField1 = new javax.swing.JPasswordField();
        jLabel3 = new javax.swing.JLabel();
        jButton2 = new javax.swing.JButton();
        jButton1 = new javax.swing.JButton();
        jTextField1 = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jPanel1.setBackground(new java.awt.Color(255, 204, 255));
        jLabel1.setFont(new java.awt.Font("宋体", 1, 24));
        jLabel1.setForeground(new java.awt.Color(204, 0, 0));
        jLabel1.setText("\u7528\u6237\u767b\u9646\u754c\u9762");

        jLabel2.setText("\u7528\u6237\u540d");

        jPasswordField1.setBackground(new java.awt.Color(204, 204, 255));

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

        jButton2.setBackground(new java.awt.Color(204, 255, 204));
        jButton2.setText("\u9000\u51fa");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton1.setBackground(new java.awt.Color(204, 255, 204));
        jButton1.setText("\u786e\u8ba4");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });
        jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton1MouseClicked(evt);
            }
        });

        org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jPanel1Layout.createSequentialGroup()
                        .add(152, 152, 152)
                        .add(jLabel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 178, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                    .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                        .add(jPanel1Layout.createSequentialGroup()
                            .add(101, 101, 101)
                            .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                                .add(jLabel2)
                                .add(jLabel3))
                            .add(85, 85, 85)
                            .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                                .add(jPasswordField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 108, Short.MAX_VALUE)
                                .add(jTextField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 108, Short.MAX_VALUE)))
                        .add(org.jdesktop.layout.GroupLayout.LEADING, jPanel1Layout.createSequentialGroup()
                            .add(114, 114, 114)
                            .add(jButton1)
                            .add(78, 78, 78)
                            .add(jButton2))))
                .add(180, 180, 180))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .add(47, 47, 47)
                .add(jLabel1)
                .add(61, 61, 61)
                .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                    .add(jLabel2)
                    .add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(26, 26, 26)
                .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel3)
                    .add(jPasswordField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 19, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(79, 79, 79)
                .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jButton2)
                    .add(jButton1))
                .addContainerGap(47, Short.MAX_VALUE))
        );

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
// TODO 将在此处添加您的处理代码：
         new load_interface().setVisible(true);
                            this.dispose();
    }//GEN-LAST:event_jButton2ActionPerformed

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
// TODO 将在此处添加您的处理代码：
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton1MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton1MouseClicked
    String s1=this.jTextField1.getText();
    char ss[]=this.jPasswordField1.getPassword();
    String s2=String.valueOf(ss);  
    
       try{
           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");}//建立JDBC-ODBC的桥接器}
        catch(ClassNotFoundException e) { System.out.println(""+e); }
        try{
            con=DriverManager.getConnection("jdbc:odbc:车票预订系统","","");//连接到数据库
            sql=con.createStatement();//向数据库发送SQL语句
            rs=sql.executeQuery("use 车票预订系统 select * from load_name_password");
            
        while(rs.next()){
               
                    String name=rs.getString(1);
                    String password=rs.getString(2);
                    
                   if(s1.equals(name))
                   {
                        
                        if(s2.equals(password))       
                        {
                            new user_imformation().setVisible(true);
                            this.dispose();
                            break;
                        }
                   }                    
                    
                 else
                       JOptionPane.showMessageDialog(this,"用户名或密码不正确！","报错",JOptionPane.WARNING_MESSAGE);
                        this.jPasswordField1.requestFocus();
                        break;
            }
          }
         catch(SQLException e) {System.out.println(e);}
            // TODO 将在此处添加您的处理代码：
    }//GEN-LAST:event_jButton1MouseClicked
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new user_load().setVisible(true);
            }
        });
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPasswordField jPasswordField1;
    private javax.swing.JTextField jTextField1;
    // 变量声明结束//GEN-END:variables
    
}