password.java

教材订购系统

package program;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;

import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;

import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JPasswordField;





public class Password  {

	private static final long serialVersionUID = 1L;

	private JFrame frame = null; 
	
	private JPanel jContentPane = null;

	private JLabel mz = null;

	private JTextField jTextField = null;

	private JLabel jLabel = null;

	private JButton jButton = null;

	private JButton jButton1 = null;
	
	 File f_obid=new File("D:/Java_Work/BookManager/program/id.txt");  
	 File f_obkey=new File("D:/Java_Work/BookManager/program/key.txt");  //  @jve:decl-index=0:

	private JPasswordField jPasswordField = null;
	

	/**
	 * This is the default constructor
	 */
	public Password() {
		frame = new JFrame();
		initialize();
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private void initialize() {
		frame.setSize(300, 200);
		frame.setContentPane(getJContentPane());
		frame.setTitle("用户登陆");
		
        Toolkit tkit=Toolkit.getDefaultToolkit();
		
		Dimension screenSize=tkit.getScreenSize();
		Dimension frameSize=frame.getSize();
		if(frameSize.height>screenSize.height){
			frameSize.height=screenSize.height;
		}
		if(frameSize.width>screenSize.width){
			frameSize.width=screenSize.width;
		}
		frame.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
		
		
		
		frame.setVisible(true);
		frame.addWindowListener(new java.awt.event.WindowAdapter() {
			public void windowClosing(java.awt.event.WindowEvent e) {
				System.exit(0);
			}
		});
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jLabel = new JLabel();
			jLabel.setBounds(new Rectangle(15, 75, 47, 31));
			jLabel.setText("   \u5bc6 \u7801");
			mz = new JLabel();
			mz.setBounds(new Rectangle(15, 30, 48, 32));
			mz.setText("  \u7528\u6237\u540d");
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(mz, null);
			jContentPane.add(getJTextField(), null);
			jContentPane.add(jLabel, null);
			jContentPane.add(getJButton(), null);
			jContentPane.add(getJButton1(), null);
			jContentPane.add(getJPasswordField(), null);
		}
		return jContentPane;
	}

	/**
	 * This method initializes jTextField	
	 * 	
	 * @return javax.swing.JTextField	
	 */
	private JTextField getJTextField() {
		if (jTextField == null) {
			jTextField = new JTextField();
			jTextField.setBounds(new Rectangle(75, 31, 182, 31));
			jTextField.setText("");
			jTextField.addKeyListener(new java.awt.event.KeyAdapter() {
				public void keyPressed(java.awt.event.KeyEvent e) {
					if(e.getKeyCode()==KeyEvent.VK_ENTER)
					  jPasswordField.requestFocus();
					
				}
			});
		}
		return jTextField;
	}

	/**
	 * This method initializes jButton	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton() {
		if (jButton == null) {
			jButton = new JButton();
			jButton.setBounds(new Rectangle(60, 120, 62, 31));
			jButton.setText("\u786e\u5b9a");
			
			jButton.addKeyListener(new java.awt.event.KeyAdapter() {
				public void keyPressed(java.awt.event.KeyEvent e) {
					if(e.getKeyCode()==KeyEvent.VK_ENTER)
						jButton.doClick();		
				}
			});

		
			jButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					String id="";
					final String userid=jTextField.getText();
					String key="";
					final String userkey=new String(jPasswordField.getPassword());
					
					RandomAccessFile out1=null;
					try {
						out1 = new RandomAccessFile(f_obid,"r");
					} catch (FileNotFoundException e1) {
						// TODO 自动生成 catch 块
						e1.printStackTrace();
					}
			        try {
				           id=out1.readUTF();
			       } catch (IOException e1) {
				        // TODO 自动生成 catch 块
				       e1.printStackTrace();
			       }	
					 
				try {
					out1.close();
				} catch (IOException e2) {
					// TODO 自动生成 catch 块
					e2.printStackTrace();
				}

			       RandomAccessFile out2=null;
					try {
						out2 = new RandomAccessFile(f_obkey,"rw");
					} catch (FileNotFoundException e1) {
						// TODO 自动生成 catch 块
						e1.printStackTrace();
					}
			        try {
				           key=out2.readUTF();
			       } catch (IOException e1) {
				        // TODO 自动生成 catch 块
				       e1.printStackTrace();
			       }
			       
			       try {
					out2.close();
				} catch (IOException e1) {
					// TODO 自动生成 catch 块
					e1.printStackTrace();
				}
			       
			       
			       
					
					if((userid.equals(id) && userkey.equals(key)))//||(userid.equals("") && userkey.equals("")))	
					{	
						
						SellWindows work=new SellWindows();
						frame.setVisible(false);
						
					}
					else 
					{
						SysPoint er = new SysPoint("      用户名或密码错误~_~");
						jTextField.setText("");
						jPasswordField.setText("");
					
					}
				}
			});
			
			
			
			
			
		}
		return jButton;
	}

	/**
	 * This method initializes jButton1	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton1() {
		if (jButton1 == null) {
			jButton1 = new JButton();
			jButton1.setBounds(new Rectangle(165, 120, 61, 31));
			jButton1.setText("\u9000\u51fa");
			
			jButton1.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					System.exit(0);
				}
			});
		}
		return jButton1;
	}

	/**
	 * This method initializes jPasswordField	
	 * 	
	 * @return javax.swing.JPasswordField	
	 */
	private JPasswordField getJPasswordField() {
		if (jPasswordField == null) {
			jPasswordField = new JPasswordField();
			jPasswordField.setBounds(new Rectangle(75, 76, 184, 30));
			jPasswordField.setText("");
			jPasswordField.addKeyListener(new java.awt.event.KeyAdapter() {
				public void keyPressed(java.awt.event.KeyEvent e) {
					if(e.getKeyCode()==KeyEvent.VK_ENTER)
					jButton.requestFocus();
				}
			});
		}
		return jPasswordField;
	}

}  //  @jve:decl-index=0:visual-constraint="275,43"