www.pudn.com > sjkjjwsu.store.rar > UserModify.java

import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
import java.sql.*; 
public class UserModify extends JFrame implements ActionListener 
{ 
	DataBaseManager db=new DataBaseManager(); 
	ResultSet rs; 
	JPanel panel1,panel2; 
	Container c; 
	JLabel UserLabel,PasswordLabel,NewPasswordLabel,PasswordConfirmLabel; 
	JTextField UserTextField; 
	JPasswordField PasswordTextField,NewPasswordTextField,PasswordConfirmTextField; 
	JButton UpdateBtn,CancelBtn; 
	public UserModify() 
	{ 
		super("更改密码"); 
		c=getContentPane(); 
		c.setLayout(new BorderLayout()); 
		UserLabel=new JLabel("用户名",JLabel.CENTER); 
		PasswordLabel=new JLabel("原密码",JLabel.CENTER); 
		NewPasswordLabel=new JLabel("新密码",JLabel.CENTER); 
		PasswordConfirmLabel=new JLabel("确认新密码",JLabel.CENTER); 
		UserTextField=new JTextField(10); 
		PasswordTextField=new JPasswordField(10); 
		NewPasswordTextField=new JPasswordField(10); 
		PasswordConfirmTextField=new JPasswordField(10); 
		UpdateBtn=new JButton("更新"); 
		CancelBtn=new JButton("取消"); 
		UpdateBtn.addActionListener(this); 
		CancelBtn.addActionListener(this); 
		panel1=new JPanel(); 
		panel1.setLayout(new GridLayout(4,2)); 
		panel1.add(UserLabel); 
		panel1.add(UserTextField); 
		panel1.add(PasswordLabel); 
		panel1.add(PasswordTextField); 
		panel1.add(NewPasswordLabel); 
		panel1.add(NewPasswordTextField); 
		panel1.add(PasswordConfirmLabel); 
		panel1.add(PasswordConfirmTextField); 
		panel2=new JPanel(); 
		panel2.add(UpdateBtn); 
		panel2.add(CancelBtn); 
		c.add(panel1,BorderLayout.CENTER); 
		c.add(panel2,BorderLayout.SOUTH); 
		setSize(300,300); 
		 
	} 
	public void actionPerformed(ActionEvent e) 
	{ 
		if(e.getSource()==CancelBtn) 
		{ 
			db.closeConnection(); 
			this.dispose(); 
		} 
		else if(e.getSource()==UpdateBtn) 
		{ 
			try 
			{ 
				char[] password=PasswordTextField.getPassword(); 
			        String passwordSTR=new String(password); 
			        char[] newPassword=NewPasswordTextField.getPassword(); 
			        String newPasswordSTR=new String(newPassword); 
			        char[] confirmPassword=PasswordConfirmTextField.getPassword(); 
			        String confirmPasswordSTR=new String(confirmPassword); 
				String strSQL="select * from userTable where userName='"+ 
				UserTextField.getText().trim()+"'and password='"+ 
				passwordSTR+"'"; 
				if(UserTextField.getText().trim().equals("")) 
				{ 
					JOptionPane.showMessageDialog(null,"用户名不能为空！"); 
				} 
				else if(passwordSTR.equals("")) 
				{ 
					JOptionPane.showMessageDialog(null,"原密码不能为空！"); 
				} 
				else if(!newPasswordSTR.equals(confirmPasswordSTR)) 
				{ 
					JOptionPane.showMessageDialog(null,"两次输入的新密码不一致！"); 
				} 
				else  
				{ 
					if(!db.getResult(strSQL).first()) 
				        { 
					          JOptionPane.showMessageDialog(null,"此用户不存在或者原密码不正确！"); 
					  
				        } 
				        else 
				        { 
				        	strSQL="update userTable set password='"+ 
				        	newPasswordSTR+"'where UserName='"+UserTextField.getText() 
				        	.trim()+"'"; 
				        	if(db.updateSql(strSQL)) 
				        	{ 
				        		JOptionPane.showMessageDialog(null,"更新密码成功！"); 
				        		this.dispose(); 
				        	} 
				        	else 
				        	{ 
				        		JOptionPane.showMessageDialog(null,"更新密码失败！"); 
				        		this.dispose(); 
				        	} 
				        	db.closeConnection(); 
				        } 
				} 
			} 
			catch(SQLException sqle) 
			{ 
				System.out.println(sqle.toString()); 
			} 
			catch(Exception ex) 
			{ 
				System.out.println(ex.toString()); 
			} 
		} 
	} 
}