startframe.java

java netbeans 学习程序合集

/*
 * StartFrame.java
 *
 * Created on 2007年8月22日, 上午9:52
 */

package org.Adam;

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JOptionPane;
import javax.swing.JOptionPane;
import javax.swing.UIManager;
import java.lang.String;
import java.util.Vector;
import org.Adam.SplashScreen;
/**
 *
 * @author  Administrator
 */
public class StartFrame extends javax.swing.JFrame {
    private static SplashScreen fSplashScreen; // 欢迎屏幕
    JOptionPane jOptionPane1=new JOptionPane();
    AddStudent aframe = new AddStudent();
     ResultSet rs=null;
   public String Power=new String();

    private String sql;
    //this.add(AddStudent);
    //StartFrame frame1 = new StartFrame();
    /** Creates new form StartFrame */
    public StartFrame() {
        initComponents();
        this.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                  System.exit(0);
            }
        });
        this.setLocationRelativeTo(this);
        this.setResizable(false);
    }
    /** This method is called from within the constructor to
    
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jPasswordField1 = new javax.swing.JPasswordField();
        jLabel3 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("\u5b66\u751f\u4fe1\u606f\u7ba1\u7406\u7cfb\u7edf");
        jLabel1.setFont(new java.awt.Font("宋体", 1, 14));
        jLabel1.setText("\u7528\u6237\u540d\uff1a");

        jTextField1.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                jTextField1KeyPressed(evt);
            }
        });

        jLabel2.setFont(new java.awt.Font("宋体", 1, 14));
        jLabel2.setText("\u5bc6\u7801\uff1a");

        jButton1.setText("\u786e\u5b9a");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("\u53d6\u6d88");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jLabel3.setFont(new java.awt.Font("宋体", 1, 18));
        jLabel3.setText("\u5f53\u524d\u7528\u6237\u662f\uff1a");

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
                    .add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
                        .add(44, 44, 44)
                        .add(jLabel3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                    .add(org.jdesktop.layout.GroupLayout.LEADING, layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                        .add(jButton2)
                        .add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
                            .add(35, 35, 35)
                            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                                .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                                    .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                                    .add(jLabel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 60, Short.MAX_VALUE))
                                .add(layout.createSequentialGroup()
                                    .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                                    .add(jButton1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                                .add(jLabel2))
                            .add(19, 19, 19)
                            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                                .add(jPasswordField1)
                                .add(jTextField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 121, Short.MAX_VALUE)))))
                .addContainerGap(36, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(48, 48, 48)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 28, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(75, 75, 75)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel2)
                    .add(jPasswordField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(52, 52, 52)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jButton2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 29, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 31, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(30, 30, 30)
                .add(jLabel3)
                .addContainerGap(32, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_jTextField1KeyPressed
// TODO 将在此处添加您的处理代码：
       // String sql="select UserName from PasswordText where ";
        StringBuffer Name=new StringBuffer(this.jTextField1.getText());
        
        this.jLabel3.setText("当前用户是："+Name);
        
    }//GEN-LAST:event_jTextField1KeyPressed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
// TODO 将在此处添加您的处理代码：
        System.exit(0);
    }//GEN-LAST:event_jButton2ActionPerformed

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
// TODO 将在此处添加您的处理代码：
      
        String UserName=this.jTextField1.getText();
        String UserPassword= new String(jPasswordField1.getPassword());
        String pass=null;
       
        DB dB=new DB();
        String sql="select UserPassword from PasswordText where UserName='"+UserName+"' and UserPassword='"+UserPassword+"'";
      String sql1="select power from PasswordText where UserName='"+UserName+"'";
        rs=dB.SelectpassDb(sql);
 

      try {
            
            //pass=rs.getString("UserPassword");//此处的UserPassword是表中对应的列名；
            if(rs.next())
            {
                aframe.setVisible(true);
                aframe.setResizable(false);
               this.dispose();
            }
            else
            {
               StartFrame start=new StartFrame();
               String message=new String("对不起，密码或用户名错误！");
               String title=new String("错误！");
               JOptionPane.showConfirmDialog(start,message,title,JOptionPane.OK_CANCEL_OPTION,JOptionPane.WARNING_MESSAGE,null);
            }
        } catch (SQLException ex) {
            System.out.println(ex.getMessage());
        }
        
       rs=dB.SelectpassDb(sql1);
        try {
            rs.next();
            Power=rs.getString("power");
            UserInfo.power = Power;
            
        } catch (SQLException ex) {
            ex.printStackTrace();
        }
       //System.out.println(Power);
       dB.closeAccessConnection();
 
        /* */
    }//GEN-LAST:event_jButton1ActionPerformed
/**/
    /**/
        
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        
        try
        {
            showSplashScreen(); // 显示软件封面
            // 启动应用程序  
            StartFrame frame = new StartFrame(); // 实例化启动框架
            frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
            // 计算屏幕的大小和 Frame 的大小
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            Dimension frameSize = frame.getSize();
            // 设置 Frame 的大小不超过屏幕的大小
            if (frameSize.height > screenSize.height) { frameSize.height = screenSize.height; }
            if (frameSize.width > screenSize.width) { frameSize.width = screenSize.width; }
            // 居中显示 Frame
            frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2); // 计算居中显示值
            frame.setVisible(true); // 工作窗体可见
            EventQueue.invokeLater( new SplashScreenCloser() ); // 关闭软件封面 
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            System.exit(1);
        }
    }
 private static void showSplashScreen(){
        fSplashScreen = new SplashScreen("/images/Splash.jpg"); // 设置封面路径
        fSplashScreen.splash(); // 显示封面
    }
    
    /**
     * @关闭欢迎屏幕 class
     * 
     * 为了以线程安全的方式关闭splash屏幕，
     * 用 <foodCode>EventQueue.invokeLater</foodCode>
     * 调用该 <foodCode>Runnable</foodCode> ，见377menuFileExit行
     */
    private static final class SplashScreenCloser implements Runnable {
        public void run(){
            fSplashScreen.dispose();  // 关闭封面
        }
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JPasswordField jPasswordField1;
    private javax.swing.JTextField jTextField1;
    // 变量声明结束//GEN-END:variables
    
}