load.java

学生管理系统简单实训,只用于学习之用

package mainface;
import java.awt.*;
import java.net.*;
import javax.swing.*;
import java.awt.event.*;
public class Load  extends JFrame  implements ActionListener{
   Thread t;
   JLabel label;
   JFrame jframe=new JFrame("学生成绩管理系统登陆");
   JButton button=new JButton("确定");
   JButton button1=new JButton("取消");
   JButton buttondial=new JButton("确定");
   JTextField field=new JTextField();
   JPasswordField  word=new JPasswordField();
   JDialog dialog=new JDialog();
   protected static String name,pass;
  public void  makeFace(){
	  ((JPanel)jframe.getContentPane()).setOpaque(false);
	    GridLayout grid=new GridLayout(3,0);
       jframe.setLayout(grid);
	   JLabel jb=new JLabel(new ImageIcon(getClass().getResource("stu.jpg")));
	   jframe.getLayeredPane().add(jb,new Integer(Integer.MIN_VALUE));
	   jb.setBounds(0,0,1024,768);
	    label=new JLabel(new ImageIcon(getClass().getResource("biao.gif")));
	   JPanel panel=new JPanel();
	   JPanel panel1=new JPanel();
	   panel1.setOpaque(false);
       panel.setOpaque(false);
	   panel1.setLayout(new GridLayout(0,3,35,3));
	   panel.setLayout(new GridLayout(8,4));
	   for(int i=1;i<=4;i++)
	        panel.add(new JLabel()); 
	    panel.add(new JLabel("                                                                 用户名："));
	  
	    panel.add(field);
	    panel.add(new JLabel());
	    panel.add(new JLabel());
	    panel.add(new JLabel("                                                                     密码："));
	    
	    panel.add(word);
	    panel1.add(button);
	    panel1.add(button1);
	    button.setDefaultCapable(true);
	    button.addActionListener(this);
	    button1.addActionListener(this);
	    panel1.add(new JLabel());
	    for(int j=1;j<=21;j++)
	    	if(j==8)
	    	 panel.add(panel1);
	    	else
	        panel.add(new JLabel());
	  // label.setAlignmentX(-100);
	   t=new Thread(new Runnable(){
		   public void run(){
			  
			   int x=label.getX();
			   int y=x;
			   while(x<=750){
				   try{
					   t.sleep(25);
				   }catch(Exception a){
					   a.printStackTrace();
				   }
			    label.setBounds(x,label.getY(),label.getWidth(),label.getHeight());
			   x=x+5;
			   if(x==750){
				   x=y-750;
				   
			   }
			  
		   }
			   }
	   });
	   t.start();
	   jframe.add(label);
       jframe.add(panel);
       jframe.setVisible(true);
	   jframe.setBounds(0,0,1024,768);
       jframe.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
       
       }
  public void notice(){//提示框信息；
	   JPanel panel=new JPanel();
	   dialog.setTitle("有点错误");
	   dialog.setBounds(550,200,300,200);
	   dialog.setLayout(new GridLayout(4,0,20,15));
	   dialog.add(new JLabel());
	   JLabel label=new JLabel("          @用户名或密码错误！");
	   panel.setLayout(new GridLayout(1,3,50,40));
	   panel.add(new JLabel());
	   panel.add(buttondial);
	   panel.add(new JLabel());
	   label.setFont(new Font("",Font.BOLD,20));
	   buttondial.addActionListener(this);
	   dialog.add(label);
	   dialog.add(panel);
	   dialog.setVisible(false);
  }
  
  public void  Changeword(String s,String ss){
	  name=s;
	  pass=ss;
  }
  public boolean Checkid(){
	  String a=field.getText()+new String(word.getPassword());
	  return  a.equals(name+pass);
  }
  public void actionPerformed(ActionEvent e){
	  if(e.getSource()==button)
	     if(Checkid())
		  {  
	    	 Std_face.main(null);
	    	 jframe.setVisible(false);
		  }
		  else
		  dialog.setVisible(true);
		       
	  
	  if(e.getSource()==button1){
		  field.setText("");
		  word.setText("");
	  }
	  if(e.getSource()==buttondial){
	    dialog.setVisible(false);
	  }
  }
   public static void main(String args[]){
	Load  load= new Load();
	load.Changeword("cai", "123");
    load.notice();
    load.makeFace();
   }
}