package app;import java.awt.*;import com.borland.jbcl.layout.*;import javax.swing.*;import java.awt.event.*;import java.sql.*;import java.lang.Object;/** * <p>Title: 個人日常事務(wù)管理系統(tǒng)</p> * <p>Description: 用于個人管理</p> * <p>Copyright: Copyright (c) 2003</p> * <p>Company: </p> * @author unascribed * @version 1.0 */public class LogFrame extends JFrame {  private XYLayout xYLayout1 = new XYLayout();  private JLabel jLabel_name = new JLabel();  private JLabel jLabel_password = new JLabel();  private JTextField jTextField_name = new JTextField();  private JLabel jLabel1 = new JLabel();  private JPasswordField jPasswordField = new JPasswordField();  private JButton jButton1 = new JButton();  private JButton jButton2 = new JButton();  protected String user,password,password_from;  AppFrame frame;  public LogFrame(AppFrame frame1) {    frame = frame1;    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }  }  private void jbInit() throws Exception {    this.setTitle("登錄窗口");    this.getContentPane().setLayout(xYLayout1);    jLabel_name.setFont(new java.awt.Font("Dialog", 0, 14));    jLabel_name.setText("請輸入用戶名：");    jLabel_password.setFont(new java.awt.Font("Dialog", 0, 14));    jLabel_password.setText("請輸入密碼：");    jLabel1.setFont(new java.awt.Font("Dialog", 0, 16));    jLabel1.setText("個 人 日 常 事 務(wù) 管 理 系 統(tǒng)");    jButton1.setFont(new java.awt.Font("Dialog", 0, 14));    jButton1.setText("確    認");    jButton1.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton1_actionPerformed(e);      }    });    jButton2.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton2_actionPerformed(e);      }    });    jButton2.setText("取    消");    jButton2.setFont(new java.awt.Font("Dialog", 0, 14));    jTextField_name.addFocusListener(new java.awt.event.FocusAdapter() {      public void focusLost(FocusEvent e) {        jTextField_name_focusLost(e);      }    });    jPasswordField.addFocusListener(new java.awt.event.FocusAdapter() {      public void focusLost(FocusEvent e) {        jPasswordField_focusLost(e);      }    });    this.getContentPane().add(jLabel_password, new XYConstraints(52, 148, 91, 28));    this.getContentPane().add(jLabel_name, new XYConstraints(51, 101, 99, -1));    this.getContentPane().add(jTextField_name, new XYConstraints(160, 95, 155, 28));    this.getContentPane().add(jLabel1,  new XYConstraints(84, 20, 220, 38));    this.getContentPane().add(jPasswordField,  new XYConstraints(159, 143, 156, 32));    this.getContentPane().add(jButton1, new XYConstraints(77, 205, 88, 33));    this.getContentPane().add(jButton2,    new XYConstraints(218, 206, 88, 33));  }  void jButton2_actionPerformed(ActionEvent e) {   System.exit(0);  }  void jTextField_name_focusLost(FocusEvent e) {  }  void jPasswordField_focusLost(FocusEvent e) {password = jPasswordField.getText();  }  void jButton1_actionPerformed(ActionEvent e) {                 Connection con;                 String url="jdbc:odbc:grrc";                 Statement stmt;                 user = jTextField_name.getText();                 try{                         Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");                         con=DriverManager.getConnection(url,"","");                         String sql="SELECT PASSWORD from sys_safe where NAME ='"+user+"'";                         stmt=con.createStatement();                         ResultSet rs=stmt.executeQuery(sql);                         if(rs.next())                           password_from =  rs.getString("PASSWORD");                           if(password_from.endsWith(password)){                             JOptionPane.showMessageDialog(this,"密碼正確！","登錄信息",JOptionPane.INFORMATION_MESSAGE);                           this.setVisible(false);                           frame.setVisible(true);                           Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();                           int h = screenSize.height;                           int w = screenSize.width;                           frame.setSize(w,h);                           Dimension frameMainSize = frame.getSize();                           // Center the Window                           if (frameMainSize.height > screenSize.height) {                             frameMainSize.height = screenSize.height;                            }                           if (frameMainSize.width > screenSize.width) {                             frameMainSize.width = screenSize.width;                            }                             frame.setLocation((screenSize.width - frameMainSize.width) / 2, (screenSize.height - frameMainSize.height) / 2);                           }                           else{                             JOptionPane.showMessageDialog(this,"密碼和用戶名不符，請重新輸入密碼！","登錄信息",JOptionPane.INFORMATION_MESSAGE);                           }                         con.close();                 }catch(Exception ex){                         System.out.println("A problem occurred during the establishment of th connection: "+ex);		                       }      }}