loginframe.java

一个优秀的干洗店管理系统

/**
 * 
 */
package view.frame;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComboBox;
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.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.Border;

import view.common.GBC;
import vo.OperatorVo;
import dao.operator.OperatorDao;
import dao.operator.impl.OperatorDaoImpl;

/**
 * @author lulicheng
 * @version 1.0
 * 
 */
public class LoginFrame extends JFrame {
	/**
	 * 主方法,初始化对象
	 * 
	 * @param args
	 */
	public static void main(String[] args) {
		// 加载外观
		 try {
			 UIManager
	          .setLookAndFeel("com.jtattoo.plaf.mcwin.McWinLookAndFeel");
		    } catch (Exception e) {
		      try {
		        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		      } catch (ClassNotFoundException e1) {
		        e1.printStackTrace();
		      } catch (InstantiationException e1) {
		        e1.printStackTrace();
		      } catch (IllegalAccessException e1) {
		        e1.printStackTrace();
		      } catch (UnsupportedLookAndFeelException e1) {
		        e1.printStackTrace();
		      }
		    }
		new LoginFrame("用户登录");
	}

	private JTextField idField = null; // 用户编号文本框
	private JTextField nameField = null; // 用户名文本框
	private JPasswordField pswField = null; // 用户密码文本框
	private JComboBox purviewCombo;
	private JButton exitButton = null; // 退出按钮
	private JButton loginButton = null; // 退出按钮

	// 保存用户名的静态变量
	public static String username;

	// 设置边框
	Border etched = BorderFactory.createEtchedBorder();

	/**
	 * 构造方法，初始化窗体
	 * 
	 * @param title
	 */
	public LoginFrame(String title) {
		// 设置窗体标题
		this.setTitle(title);
		// 启动连接数据库的对话框
//		new ConnectDialog().getConnect();
		// 初始化窗体
		initialFrame();
		// 设置窗体大小
		this.setSize(500, 300);
		// 动态获得屏幕大小
		Dimension size = Toolkit.getDefaultToolkit().getScreenSize();
		// 设置窗体启动的位置
		this.setLocation((int) (size.getWidth() - this.getWidth()) / 2,
		      (int) (size.getHeight() - this.getHeight()) / 2);
		this.idField.setText("1");
		this.nameField.setText("刘涛");
		this.pswField.setText("123");
		// 设置当前窗体大小为不可改变状态
		this.setResizable(false);
		this.setVisible(true);
	}

	/**
	 * 初始化窗体方法
	 */
	public void initialFrame() {
		JPanel panel = new JPanel();
		panel.setBorder(BorderFactory.createTitledBorder(etched, "登录"));
		panel.setLayout(new BorderLayout());
		JPanel lbPanel = new JPanel();
		JLabel titleLabel = new JLabel("干洗店管理系统");
		lbPanel.add(titleLabel);
		titleLabel.setFont(new Font(" ", Font.PLAIN, 32));
		panel.add(lbPanel, BorderLayout.NORTH);
		panel.add(getInfo());
		this.getContentPane().add(panel, BorderLayout.CENTER);
		this.getContentPane().add(getButtonPanel(), BorderLayout.SOUTH);
	}

	/**
	 * 界面布局方法
	 * 
	 * @return 返回面板对象
	 */
	public JPanel getInfo() {

		JPanel panel = new JPanel();
		this.idField = new JTextField(20);
		this.nameField = buildNmFld();
		this.pswField = new JPasswordField(20);
		panel.setLayout(new GridBagLayout());

		panel.add(new JLabel("用户编号:"), new GBC(0, 0, 1, 1).
				setFill(GBC.BOTH).setInset(5).setWeight(0, 0));
		panel.add(idField, new GBC(1, 0, 1, 1).setFill(
				GBC.BOTH).setInset(5).setWeight(0, 0));
		panel.add(new JLabel("用户名:"),  new GBC(0, 1, 1, 1)
		.setFill(GBC.BOTH).setInset(5).setWeight(0, 0));
		panel.add(nameField, new GBC(1, 1, 1, 1).setFill(
				GBC.BOTH).setInset(5).setWeight(0, 0));
		panel.add(new JLabel("密码:"), new GBC(0, 2, 1, 1).setFill(GBC.BOTH).setInset(5).
				setWeight(0, 0));
		panel.add(pswField, new GBC(1, 2, 1, 1).setFill(
				GBC.BOTH).setInset(5).setWeight(0, 0));
		panel.add(new JLabel("操作员权限"), new GBC(0, 3, 1, 1).setFill(
				GBC.BOTH).setInset(5).setWeight(0, 0));
		String[] purview = { "店长", "收银员", "系统管理员"};
		purviewCombo = new JComboBox(purview);
		panel.add(purviewCombo, new GBC(1, 3, 1, 1).setFill(
				GBC.BOTH).setInset(5).setWeight(0, 0));
		return panel;
	}

	/**
	 * 获得铵钮方法面板
	 * 
	 * @return 返回面板对象
	 */
	public JPanel getButtonPanel() {
		JPanel panel = new JPanel();
		panel.add(buildLoginButton());
		panel.add(buildExitButton());
		return panel;
	}
	
	public JTextField buildNmFld(){
		if(nameField == null){
			nameField = new JTextField(20);
		}
		return nameField;
	}

	public JButton buildLoginButton() {
		if (loginButton == null) {
			loginButton = new JButton("登录");
			loginButton.addActionListener(new LoginAction(this));
		}
		return loginButton;
	}

	public JButton buildExitButton() {
		if (exitButton == null) {
			exitButton = new JButton("取消");
			exitButton.addActionListener(new LoginAction(this));
		}
		return exitButton;
	}

	/**
	 * 获得当前用户名
	 * 
	 * @return 当前用户名
	 */
	public String getUsername() {
		return this.nameField.getText().trim();
	}

	/**
	 * 构造登陆用户信息，封装在UserVo对象中
	 * 
	 * @return
	 */
	public OperatorVo getInputValue() {
		int userId = Integer.parseInt(idField.getText().trim());
		String userName = nameField.getText();
		String password = new String(pswField.getPassword());
		return new OperatorVo(userId, userName, password);
	}
}

class LoginAction implements ActionListener {
	private LoginFrame loginFrame = null;

	public LoginAction(LoginFrame loginFrame) {
		this.loginFrame = loginFrame;
	}

	public void actionPerformed(ActionEvent e) {
		String name = e.getActionCommand();// 得到触发事件的组件对象的名称
		if (name.equals("登录")) {
			OperatorVo value = loginFrame.getInputValue();
			OperatorDao dao = new OperatorDaoImpl();
			if (dao.findOperator(value)) {
				loginFrame.dispose();
				MainFrame mf = new MainFrame();
				MainFrame.setOperatorName(loginFrame.buildNmFld().getText());
				mf.setVisible(true);
			} else {
				JOptionPane.showMessageDialog(null, "输入用户名或者密码出错!");
			}
		}else if(name.equals("取消")){
			loginFrame.dispose();
		}
	}
}