frmlogin.java

来自「功能还没做全的选课系统」· Java 代码 · 共 181 行

package com.xuanke.student.view;

import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;

import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JButton;

import com.xuanke.student.control.*;
import com.xuanke.utils.DBConnectionManager;
import com.xuanke.utils.MyJDBCException;
;

public class FrmLogin extends Frame implements ActionListener{

	private JPanel jPanel = null;
	private JTextField jTextField = null;
	private JTextField jTextField1 = null;
	private JLabel jLabel = null;
	private JLabel jLabel1 = null;
	private JButton jButton = null;
	private JButton jButton1 = null;

	/**
	 * This is the default constructor
	 */
	public FrmLogin() {
		try {
			DBConnectionManager.setParameter("sun.jdbc.odbc.JdbcOdbcDriver",
					"jdbc:odbc:sun","","");
		} catch (MyJDBCException e1) {
			// TODO 自动生成 catch 块
			e1.printStackTrace();
		}
		initialize();
		this.validate();
		this.setVisible(true);
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private void initialize() {
		this.setLayout(null);
		this.setSize(300, 200);
		this.setTitle("Frame");
		this.add(getJPanel(), null);
	}

	/**
	 * This method initializes jPanel	
	 * 	
	 * @return javax.swing.JPanel	
	 */
	private JPanel getJPanel() {
		if (jPanel == null) {
			jLabel1 = new JLabel();
			jLabel1.setBounds(new java.awt.Rectangle(20,72,53,18));
			jLabel1.setText("密码");
			jLabel = new JLabel();
			jLabel.setBounds(new java.awt.Rectangle(20,33,53,18));
			jLabel.setText("用户名");
			jPanel = new JPanel();
			jPanel.setLayout(null);
			jPanel.setBounds(new java.awt.Rectangle(34,37,238,145));
			jPanel.add(getJTextField(), null);
			jPanel.add(getJTextField1(), null);
			jPanel.add(jLabel, null);
			jPanel.add(jLabel1, null);
			jPanel.add(getJButton(), null);
			jPanel.add(getJButton1(), null);
			
		}
		return jPanel;
	}

	/**
	 * This method initializes jTextField	
	 * 	
	 * @return javax.swing.JTextField	
	 */
	private JTextField getJTextField() {
		if (jTextField == null) {
			jTextField = new JTextField();
			jTextField.setBounds(new java.awt.Rectangle(91,30,118,24));
			
		}
		return jTextField;
	}

	/**
	 * This method initializes jTextField1	
	 * 	
	 * @return javax.swing.JTextField	
	 */
	private JTextField getJTextField1() {
		if (jTextField1 == null) {
			jTextField1 = new JTextField();
			jTextField1.setBounds(new java.awt.Rectangle(89,66,121,25));
			//jTextField1.setEchoChar('*');
			
		}
		return jTextField1;
	}

	/**
	 * This method initializes jButton	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton() {
		if (jButton == null) {
			jButton = new JButton();
			jButton.setBounds(new java.awt.Rectangle(31,104,61,24));
			jButton.setText("登录");
		    jButton.addActionListener(this);
		}
		return jButton;
	}

	/**
	 * This method initializes jButton1	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton1() {
		if (jButton1 == null) {
			jButton1 = new JButton();
			jButton1.setBounds(new java.awt.Rectangle(119,103,71,25));
			jButton1.setText("退出");
			jButton1.addActionListener(this);
		}
		return jButton1;
	}
	public void actionPerformed(ActionEvent e) {
		// TODO 自动生成方法存根
		
	   if(e.getSource()==this.jButton){
		   UserManager lm;
		   lm= UserManager.getInstance();
		    String id=this.jTextField.getText();
			String pass=this.jTextField1.getText();
		
			int re=1;
			/*try {
				re = lm.findUser(id,pass);
			}
			catch (MyJDBCException e2) {
				// TODO 自动生成 catch 块
				e2.printStackTrace();
	           }*/
			if(re==1)
				new FrmCourseList();
		
			else
				JOptionPane.showMessageDialog(this,"用户名或密码错误,请重新输入!","警告对话框",JOptionPane.WARNING_MESSAGE);
		}
		else if(e.getSource()==this.jButton1){
			
			int n=JOptionPane.showConfirmDialog(this,"确认要退出吗？","确认对话框",JOptionPane.YES_NO_OPTION);
			if(n==JOptionPane.YES_NO_OPTION)
				System.exit(0);
			
		}
	}
	public static void main(String[] args) {
		new FrmLogin();

	}
}