loginfrm.java

对2000元以上的资产管理

package com.cdaccp.view.frame;

import java.awt.*;
import javax.swing.*;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import com.cdaccp.dao.OperatorDAO;
import com.util.Config;
import java.awt.event.KeyEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.FocusAdapter;
import javax.swing.border.TitledBorder;

/**
 * 登录界面
 */
public class LoginFrm
    extends JFrame {
  public LoginFrm() {
    try {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      jbInit();
    }
    catch (Exception exception) {
      exception.printStackTrace();
    }
  }

  private void jbInit() throws Exception {

    getContentPane().setLayout(null);
    jpfPassword.setBackground(SystemColor.window);
    jpfPassword.setBorder(titledBorder2);
    jpfPassword.setBounds(new Rectangle(111, 81, 127, 24));
    jpfPassword.addKeyListener(new LoginFrm_jpfPassword_keyAdapter(this));
    jLabel3.setText("编号");
    jLabel3.setBounds(new Rectangle(60, 40, 38, 30));
    jLabel2.setText("密码");
    jLabel2.setBounds(new Rectangle(60, 79, 38, 29));
    btnOK.setBounds(new Rectangle(173, 126, 91, 31));
    btnOK.setToolTipText("登录");
    btnOK.setIcon(ok);
    btnOK.addKeyListener(new LoginFrm_btnOK_keyAdapter(this));
    btnOK.addActionListener(new LoginFrm_btnOK_actionAdapter(this));
    btnCancel.setBounds(new Rectangle(43, 126, 91, 31));
    btnCancel.setToolTipText("取消");
    btnCancel.setIcon(no);
    btnCancel.addActionListener(new LoginFrm_btnCancel_actionAdapter(this));
    this.setResizable(false);
    this.setTitle("用户登录");
    this.getContentPane().setBackground(new Color(221, 231, 246));
    this.setForeground(SystemColor.control);
    this.setIconImage(new ImageIcon("logo.gif").getImage());
    jtfUserName.setBackground(SystemColor.window);
    jtfUserName.setBorder(titledBorder1);
    jtfUserName.setToolTipText("");
    jtfUserName.addKeyListener(new LoginFrm_jtfUserName_keyAdapter(this));
    jtfUserName.addFocusListener(new LoginFrm_jtfUserName_focusAdapter(this));
    jLabel1.setForeground(Color.red);
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setBounds(new Rectangle(99, 21, 155, 19));
    jPanel1.setBounds(new Rectangle(0, 0, 300, 200));
    jPanel1.setLayout(null);
    this.getContentPane().add(jPanel1);
    jPanel1.add(jLabel1);
    jPanel1.add(jLabel3);
    jPanel1.add(jtfUserName);
    jPanel1.add(jLabel2);
    jPanel1.add(jpfPassword);
    jPanel1.add(btnOK);
    jPanel1.add(btnCancel);
    jtfUserName.setBounds(new Rectangle(111, 43, 127, 24));
    this.setSize(350, 220);
    this.setUndecorated(true);
  }

  public static void main(String[] args) {
    LoginFrm loginfrm = new LoginFrm();

  }

  JTextField jtfUserName = new JTextField();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JPasswordField jpfPassword = new JPasswordField();
  JButton btnOK = new JButton();
  JButton btnCancel = new JButton();
  JLabel jLabel1 = new JLabel();
  TitledBorder titledBorder1 = new TitledBorder("");
  TitledBorder titledBorder2 = new TitledBorder("");
  ImageIcon image = new ImageIcon("image/log.png");
  ImageIcon ok =new ImageIcon("image/ok1.png");
  ImageIcon no = new ImageIcon("image/no1.png");
   Panel1 jPanel1 = new Panel1(image);
//  JPanel jPanel1 =new JPanel();
  public void btnOK_actionPerformed(ActionEvent actionEvent) {
    yangzheng();
  }

  /**
   * 用来在Jpanel上添加背景
   */
  class Panel1 extends JPanel {
    BorderLayout borderLayout1 = new BorderLayout();
    private ImageIcon image = null;
    public Panel1(ImageIcon image) {
      try {
        this.image = image;
        jbInit();
      }
      catch (Exception exception) {
        exception.printStackTrace();
      }
    }

    private void jbInit() throws Exception {
      this.setLayout(borderLayout1);//设置布局管理
    }
    protected void paintComponent(Graphics g) {
      setOpaque(true);
      super.paintComponent(g);
      Dimension d = getSize();
      for (int x = 0; x < d.width; x += image.getIconWidth())
        for (int y = 0; y < d.height; y += image.getIconHeight())
          g.drawImage(image.getImage(), x, y, null, null);
    }
  }


  void yangzheng() {
    if (jtfUserName.getText() == null || jtfUserName.getText().equals("")) {
      JOptionPane.showMessageDialog(this, "编号不能为空");
      jtfUserName.grabFocus();
      return;
    }
    int userId = 0;
    try {
      userId = Integer.parseInt(jtfUserName.getText().trim());
    }
    catch (NumberFormatException ex) {
      jLabel1.setText("编号只能是数字");
      return;
    }
    jLabel1.setText("");
    String pwd = new String(jpfPassword.getPassword());
    if (OperatorDAO.verifyUser(userId, pwd)) { //如果验证通过，则显示主界面
      Config.currOperator = OperatorDAO.loadById(userId); //将登录者放入Config类的静态属性中
      MainFrm mainFrm = new MainFrm(); //新建主窗口
      mainFrm.setExtendedState(Frame.MAXIMIZED_BOTH); //将主窗口最大化
      mainFrm.setVisible(true); //设置可见
      this.setVisible(false); //将自己(登录窗口)隐藏
    }
    else {
      JOptionPane.showMessageDialog(this, "用户名或密码错误", "登录",
                                    JOptionPane.ERROR_MESSAGE);
      jtfUserName.grabFocus();
    }

  }

  public void btnCancel_actionPerformed(ActionEvent e) {
    System.exit(0);
  }

  public void jpfPassword_keyTyped(KeyEvent e) {
    if (e.getKeyChar() == '\n') {
      yangzheng();
    }
  }

  public void jtfUserName_focusGained(FocusEvent e) {
    jLabel1.setText("");
  }

  public void btnOK_keyTyped(KeyEvent e) {
    if (e.getKeyChar() == '\n') {
      yangzheng();
    }
  }

  public void jtfUserName_keyTyped(KeyEvent e) {
    if (e.getKeyChar() == '\n') {
      jpfPassword.grabFocus();
    }
  }
}

class LoginFrm_btnOK_keyAdapter
    extends KeyAdapter {
  private LoginFrm adaptee;
  LoginFrm_btnOK_keyAdapter(LoginFrm adaptee) {
    this.adaptee = adaptee;
  }

  public void keyTyped(KeyEvent e) {
    adaptee.btnOK_keyTyped(e);
  }
}

class LoginFrm_jtfUserName_focusAdapter
    extends FocusAdapter {
  private LoginFrm adaptee;
  LoginFrm_jtfUserName_focusAdapter(LoginFrm adaptee) {
    this.adaptee = adaptee;
  }

  public void focusGained(FocusEvent e) {
    adaptee.jtfUserName_focusGained(e);
  }
}

class LoginFrm_jtfUserName_keyAdapter
    extends KeyAdapter {
  private LoginFrm adaptee;
  LoginFrm_jtfUserName_keyAdapter(LoginFrm adaptee) {
    this.adaptee = adaptee;
  }

  public void keyTyped(KeyEvent e) {
    adaptee.jtfUserName_keyTyped(e);
  }
}

class LoginFrm_jpfPassword_keyAdapter
    extends KeyAdapter {
  private LoginFrm adaptee;
  LoginFrm_jpfPassword_keyAdapter(LoginFrm adaptee) {
    this.adaptee = adaptee;
  }

  public void keyTyped(KeyEvent e) {
    adaptee.jpfPassword_keyTyped(e);
  }
}

class LoginFrm_btnCancel_actionAdapter
    implements ActionListener {
  private LoginFrm adaptee;
  LoginFrm_btnCancel_actionAdapter(LoginFrm adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.btnCancel_actionPerformed(e);
  }
}

class LoginFrm_btnOK_actionAdapter
    implements ActionListener {
  private LoginFrm adaptee;
  LoginFrm_btnOK_actionAdapter(LoginFrm adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent actionEvent) {
    adaptee.btnOK_actionPerformed(actionEvent);
  }
}