login.java

一个KTV管理系统

package view.loginframe;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Properties;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import common.centerwindow.CenterWindow;
import common.checkinputvalue.Check;
import dao.operator.OperatorDao;
import view.mainframe.MainFrame;
import vo.Operator;
import javax.swing.JComboBox;
import javax.swing.ImageIcon;

/*******************************************************************************
 * 登录界面
 * 
 * @author 刘少 陈高鹏 卿茂月 卓彬
 * @version 1.0 2008-3-21
 * @since 中信软件
 ******************************************************************************/
public class Login {
	// 定义一个本类对象
	private static Login instance = null;

	// 声明主面板
	private JFrame jFrame = null;
   
	private JPanel jContentPane = null;

	// 用户标签
	private JLabel adminLabel = null;

	private JLabel passwordLabel = null;

	// 用户名输入框
	private JTextField adminTextField = null;

	private JButton okButton = null;

	private JButton escButton = null;

	// 用户密码框
	private JPasswordField passwordField = null;

	private JLabel jLabelAdminLevel = null;

	private JComboBox jComboBoxgetAdminLevel = null;

	private JLabel jLabelBackground = null;

	static Properties prop = new Properties();

	// 写日志文件的流对象
	static PrintWriter pw = null;

	// 写日志文件的类的对象
	static LogWriter writer = null;

	/**
	 * 本类方法
	 * 
	 * @return instance
	 */

	public static Login getInstance() {
		if (instance == null) {
			instance = new Login();
		}
		instance.getPasswordField().setText("");
		instance.jFrame.setVisible(true);
		return instance;
	}

	private Login() {
		// 渲染主界面
		try {
			UIManager
					.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
		} catch (Exception el) {
			System.out.println("Look and Feel Exception");
			System.exit(0);
		}
		this.getJFrame();
	}

	// 主面板初始化
	public JFrame getJFrame() {

		if (jFrame == null) {
			jFrame = new JFrame("中信KTV管理平台");
			jFrame.setSize(new java.awt.Dimension(710, 440));
			jFrame.setResizable(false);
			jFrame.setContentPane(getJContentPane());
			new CenterWindow().centerWindow(jFrame);

			jFrame.addWindowListener(new WindowAdapter() {

				public void windowClosing(WindowEvent e) {
					e.getWindow().setVisible(false);
					e.getWindow().dispose();
				}
			});
			getPasswordField().setText("");
			// 在frame里面设置系统小图标
			jFrame.setIconImage(Toolkit.getDefaultToolkit().getImage(
					"icon/mainframe/r.png"));
			jFrame.setVisible(true);
		}
		return jFrame;
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	// 背景图片面板
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jLabelBackground = new JLabel();
			jLabelBackground
					.setBounds(new java.awt.Rectangle(-10, -3, 720, 430));
			jLabelBackground.setIcon(new ImageIcon("icon/mainframe/login.jpg"));
			jLabelBackground.setText("");
			jLabelAdminLevel = new JLabel();
			jLabelAdminLevel
					.setBounds(new java.awt.Rectangle(380, 270, 67, 25));
			jLabelAdminLevel.setText("管理员级别");
			passwordLabel = new JLabel();
			passwordLabel.setBounds(new java.awt.Rectangle(380, 300, 67, 25));
			passwordLabel.setText("密码");
			adminLabel = new JLabel();
			adminLabel.setBounds(new java.awt.Rectangle(380, 240, 67, 25));
			adminLabel.setText("用户编号");
			jContentPane = new JPanel();
			jContentPane.setBackground(java.awt.Color.white);
			jContentPane.setLayout(null);
			jContentPane.setFont(new java.awt.Font("Dialog",
					java.awt.Font.PLAIN, 12));
			jContentPane.add(adminLabel, null);
			jContentPane.add(passwordLabel, null);
			jContentPane.add(getAdminTextField(), null);
			jContentPane.add(getOkButton(), null);
			jContentPane.add(getEscButton(), null);
			jContentPane.add(getPasswordField(), null);
			jContentPane.add(jLabelAdminLevel, null);
			jContentPane.add(getJComboBoxgetAdminLevel(), null);
			jContentPane.add(jLabelBackground, null);
			jContentPane.getName();
		}
		return jContentPane;
	}

	// 初始化用户密码框
	private JTextField getAdminTextField() {
		if (adminTextField == null) {
			adminTextField = new JTextField();
			adminTextField.setBounds(new java.awt.Rectangle(460, 240, 116, 24));
		}
		return adminTextField;
	}

	// 初始化"确定"按扭
	private JButton getOkButton() {
		if (okButton == null) {
			okButton = new JButton();
			okButton.setBounds(new java.awt.Rectangle(400, 340, 60, 25));
			okButton.setText("确定");
			okButton.addActionListener(new ActionListener() {
				// 确定按纽事件
				public void actionPerformed(ActionEvent e) {
					if (checkInputValue()) {
						try {
							int temp1 = Integer.parseInt(adminTextField
									.getText());
							String temp2 = new String(passwordField
									.getPassword());
							String temp3 = getJComboBoxgetAdminLevel()
									.getSelectedItem().toString().trim();
							if (isExistOperator(temp1)) {
								if (getAOperator(temp1, temp2, temp3)) {
									jFrame.setVisible(false);
									jFrame.dispose();
									MainFrame
											.getInstance(getJComboBoxgetAdminLevel()
													.getSelectedItem()
													.toString().trim());
									// 日志记录
									writer.log("用户" + "成功登录", LogWriter.INFO);
								} else {
									// 异常日志记录
									writer.log("用户" + "挂起", LogWriter.INFO);
									JOptionPane.showMessageDialog(null,
											"密码输入错误,请您重新输入", "提示信息",
											JOptionPane.YES_OPTION);
									passwordField.setText("");
									passwordField.requestFocus();
								}
							} else {
								JOptionPane.showMessageDialog(null,
										"用户编号错误,请您重新输入", "提示信息",
										JOptionPane.YES_OPTION);
								adminTextField.requestFocus();
							}
						} catch (Exception e1) {
							System.out.println(e1.getMessage());
						}
					}
				}
			});
		}
		return okButton;
	}

	// 初始化取消按钮设置
	private JButton getEscButton() {
		if (escButton == null) {
			escButton = new JButton();
			escButton.setBounds(new java.awt.Rectangle(480, 340, 60, 25));
			escButton.setText("取消");
			escButton.addActionListener(new ActionListener() {

				public void actionPerformed(ActionEvent e) {
					jFrame.setVisible(false);
					jFrame.dispose();
				}
			});
		}
		return escButton;
	}

	// 用户编号,密码框输入数值的约束条件
	private boolean checkInputValue() {
		// 新建一个check类对象
		Check check = new Check();
		// 判断用户编号不能够为空
		if (check.checkInputIsNull(adminTextField.getText())) {
			JOptionPane.showMessageDialog(null, "用户编号不能为空,请您重新输入", "提示信息",
					JOptionPane.YES_OPTION);
			adminTextField.requestFocus();
			return false;
		}
		// 判断用户编号只能够是数字
		if (check.checkIsContainCharactor(adminTextField.getText())) {
			JOptionPane.showMessageDialog(null, "用户编号只能为数字,请您重新输入", "提示信息",
					JOptionPane.YES_OPTION);
			adminTextField.requestFocus();
			return false;
		}
		// 判断密码框是否为空
		if (check.checkInputIsNull(passwordField.getText())) {
			JOptionPane.showMessageDialog(null, "密码不能为空,请您重新输入", "提示信息",
					JOptionPane.YES_OPTION);
			passwordField.requestFocus();
			return false;
		}
		return true;
	}

	// 通过参数获得dao层数据
	public boolean isExistOperator(int temp) {
		boolean flag = false;
		flag = new OperatorDao().isExistOperator(temp);
		return flag;
	}

	public boolean getAOperator(int temp, String temp2, String temp3) {
		boolean flag = false;
		flag = new OperatorDao().getAOperator(temp, temp2, temp3);
		return flag;
	}

	/**
	 * This method initializes passwordField
	 * 
	 * @return javax.swing.JPasswordField
	 */
	private JPasswordField getPasswordField() {
		if (passwordField == null) {
			passwordField = new JPasswordField();
			passwordField.setBounds(new java.awt.Rectangle(460, 300, 115, 22));
			passwordField.addKeyListener(new KeyListener() {

				public void keyPressed(KeyEvent e) {
					if (e.getKeyCode() == e.VK_ENTER) {
						if (checkInputValue()) {
							try {
								int temp1 = Integer.parseInt(adminTextField
										.getText());
								String temp2 = passwordField.getText();
								String temp3 = getJComboBoxgetAdminLevel()
										.getSelectedItem().toString().trim();
								if (isExistOperator(temp1)) {
									if (getAOperator(temp1, temp2, temp3)) {
										jFrame.setVisible(false);
										jFrame.dispose();
										MainFrame
												.getInstance(getJComboBoxgetAdminLevel()
														.getSelectedItem()
														.toString().trim());
									} else {
										JOptionPane.showMessageDialog(null,
												"密码输入错误,请您重新输入", "提示信息",
												JOptionPane.YES_OPTION);
										passwordField.setText("");
										passwordField.requestFocus();
									}
								} else {
									JOptionPane.showMessageDialog(null,
											"用户编号错误,请您重新输入", "提示信息",
											JOptionPane.YES_OPTION);
									adminTextField.requestFocus();
								}
							} catch (Exception e1) {
								System.out.println(e1.getMessage());
							}
						}
					}
				}

				public void keyReleased(KeyEvent e) {
				}

				public void keyTyped(KeyEvent e) {
				}
			});
		}
		return passwordField;
	}

	/**
	 * 初始化jComboBoxgetAdminLevel,可以让用户选择不同类型的权限登录
	 */

	private JComboBox getJComboBoxgetAdminLevel() {
		if (jComboBoxgetAdminLevel == null) {
			jComboBoxgetAdminLevel = new JComboBox();
			jComboBoxgetAdminLevel.setBounds(new java.awt.Rectangle(460, 270,
					116, 24));
			jComboBoxgetAdminLevel.addItem("前台收费员");
			jComboBoxgetAdminLevel.addItem("超级管理员");
			jComboBoxgetAdminLevel.setSelectedItem("前台收费员");
		}
		return jComboBoxgetAdminLevel;
	}

	/**
	 * @param zhuobin
	 * @return void
	 * @throws
	 */

	public static void main(String arg[]) {
		pw = new PrintWriter(System.err, true);
		writer = new LogWriter("登录窗体", LogWriter.INFO, pw);
		Calendar can = Calendar.getInstance();
		SimpleDateFormat fileformate = new SimpleDateFormat("yyyy'年'MM'月'dd'日'");
		String filename = fileformate.format(can.getTime());
		File file = new File("日志文件");
		if (!file.exists()) {
			file.mkdir();
		}
		// 把日志写到工程目录下面
		try {
			pw = new PrintWriter(new FileWriter("日志文件\\" + filename + "日志.log",
					true), true);
		} catch (IOException e2) {
			e2.printStackTrace();
		}
		writer.setPrintWriter(pw);
		SimpleDateFormat formatter = new SimpleDateFormat(
				"yyyy'年'MM'月'dd'日'HH:mm:ss");
		String currenttime = formatter.format(can.getTime());
		writer.log(currenttime + "开始记录日志", LogWriter.INFO);

		Login.getInstance();
	}
}