passwordtrange1.java

本系统是鞋厂管理系统

import java.awt.*;
import java.awt.event.*;
import java.sql.Connection;
import java.sql.*;
import javax.swing.*;

//该类为修改厂长密码的类
public class PasswordTrange1 extends JFrame implements ActionListener
{
	DBConnection conn=new DBConnection();
	Connection con=conn.getConn();
	
	JPasswordField jpass1=new JPasswordField(10);
	JPasswordField jpass2=new JPasswordField(10);
	JButton b=new JButton("确定");
	
	public  PasswordTrange1()
	{
		super("厂长密码修改");
		setLocation(380,300);
		setSize(300,200);
		set();
		b.addActionListener(this);
	}
	
	public Container set()
	{
		JLabel lb1=new JLabel("输入新密码");
		JLabel lb2=new JLabel("确认新密码");
		
		JPanel p1=new JPanel();
		JPanel p2=new JPanel();
		JPanel p3=new JPanel();
		JPanel p4=new JPanel();
		JPanel p5=new JPanel();
		JPanel p6=new JPanel();
		
		Container c=getContentPane();
		
		p1.setLayout(new FlowLayout());
		p1.add(lb1);
		p1.add(jpass1);;
		
		p3.setLayout(new FlowLayout());
		p2.add(lb2);
		p2.add(jpass2);
		
		p3.add(b);
		
		p4.setLayout(new GridLayout(3,1));
		p4.add(p1);
		p4.add(p2);
		p4.add(p3);
		
		c.setLayout(new BorderLayout());
		
		c.add(p5,BorderLayout.NORTH);
		c.add(p4,BorderLayout.CENTER);
		c.add(p6,BorderLayout.SOUTH);

		return c;
	}
	
	public void sorry()
	{
		String str1="密码不能为空!";
		String str2="请从新输入!";
		Alert alert=new Alert(str1,str2);
		alert.setVisible(true);
	}
	
	public void  alert()
	{
		String str1="密码确认有误!";
		String str2="请从新输入!";
		Alert alert=new Alert(str1,str2);
		alert.setVisible(true);
	}
	
	public void success()
	{
		String str="密码修改成功!";
		Alert alert=new Alert(str);
		alert.setVisible(true);
	}

	public void actionPerformed(ActionEvent e)
	{
		if("确定".equals(e.getActionCommand()))
		{
			if(jpass1.getText().length()==0&&jpass2.getText().length()==0)
			{
				sorry();
			}
			else if(!(jpass1.getText().equals(jpass2.getText())))
			{
				alert();
			}
			else if(jpass1.getText().equals(jpass2.getText()))
			{
				try
				{	
					String sql1="update manager set pass='"+jpass2.getText()+"'";
					Statement stmt=con.createStatement();
					stmt.executeUpdate(sql1);
				}
				catch(SQLException ex){}
				setVisible(false);
				success();
			}
		}
	}
}