javaSwing酒店管理

2023-12-13 07:20:14

一、介绍

在这篇博客中，我们将介绍一个基于MySQL数据库、Java编程语言和Swing图形用户界面的简单酒店管理系统。该系统包括了查询房客信息、查询房客状态、修改房客信息、添加房间信息、添加住户、退房管理、预定管理、退订管理、入账管理、出账管理、修改资料等多个功能。

二、数据库介绍

1.t_book（预订信息表）：

表示酒店客房的预订信息，每条记录对应一个预订订单。
字段解释：
id: 预订编号，主键。
name: 预订人姓名。
phone: 预订人电话。
checkTime: 预订入住时间。
creditTime: 订单创建时间。
state: 预订状态（已退订等）。
t_cashier（收支信息表）：

记录酒店的收入和支出情况，用于财务管理。
字段解释：
id: 记录编号，主键。
type: 类型（收入/支出）。
money: 金额。
remarks: 备注。
time: 创建时间。

2.t_guestroom（客房信息表）：

存储酒店客房的基本信息，包括房间号、状态和类型。
字段解释：
id: 客房编号，主键。
num: 房间号。
state: 房间状态（0表示空闲，1表示已入住）。
type: 客房类型。

3.t_household（住户信息表）：

记录入住和退房的住户信息，包括姓名、身份证号、入住时间、房间号等。
字段解释：
id: 住户编号，主键。
name: 住户姓名。
idNum: 身份证号码。
checkTime: 入住时间。
roomNum: 入住房号。
money: 收费金额。
state: 入住状态。
outTime: 退房时间。

4.t_user（用户信息表）：

存储系统用户的登录名和密码。
字段解释：
id: 用户编号，主键。
userName: 登录名。
password: 登录密码。

三、程序截图

1.查询房客信息

在这里插入图片描述

2.查询房客状态

在这里插入图片描述

3.修改客房信息

在这里插入图片描述

4.添加房间信息

在这里插入图片描述

5.添加住户

在这里插入图片描述

6.退房管理

在这里插入图片描述

7.预定管理

在这里插入图片描述

8.退订管理

在这里插入图片描述

9.入账管理

在这里插入图片描述

10.出账管理

在这里插入图片描述

11.修改资料

在这里插入图片描述

四、代码

1.addGuestRoom

/*
 * addGuestRoom.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import java.awt.event.ActionEvent;
import java.sql.Connection;

import hotel.dao.KeFangDao;
import hotel.model.KeFang;
import hotel.util.DbUtil;

import javax.swing.JOptionPane;

/**
 *
 * @author  __USER__
 */
public class addGuestRoom extends javax.swing.JInternalFrame {
	
	DbUtil dbUtil = new DbUtil();
	KeFangDao guestRoomDao = new KeFangDao();

	/** Creates new form addGuestRoom */
	public addGuestRoom() {
		initComponents();
	}

//GEN-BEGIN:initComponents
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
num = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
type = new javax.swing.JTextField();
save = new javax.swing.JButton();
reset = new javax.swing.JButton();

setClosable(true);
setTitle("添加房间信息");

jLabel1.setText("房间号");

num.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
numActionPerformed(evt);
}
});

jLabel2.setText("类型");

save.setText("保存");
save.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
saveActionPerformed(evt);
}
});

reset.setText("重置");
reset.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
resetActionPerformed(evt);
}
});

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.LEADING)
.add(layout.createSequentialGroup()
.add(45, 45, 45)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
.add(jLabel1)
.add(jLabel2))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
.add(type)
.add(num, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 140, Short.MAX_VALUE)))
.add(layout.createSequentialGroup()
.add(84, 84, 84)
.add(save)
.add(18, 18, 18)
.add(reset)))
.addContainerGap(88, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(38, 38, 38)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel1)
.add(num, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel2)
.add(type, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 17, Short.MAX_VALUE)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(reset)
.add(save))
.addContainerGap())
);

pack();
}	
	/**
	 * 重置按钮时间
	 * @param evt
	 */
	private void resetActionPerformed(ActionEvent evt) {
		reset();
	}


	private void saveActionPerformed(java.awt.event.ActionEvent evt) {
		String num = this.num.getText();
		String type = this.type.getText();
		if(num == null || "".equals(num)){
			JOptionPane.showMessageDialog(null, "请输入房间号");
			return;
		}
		if(type == null && "".equals(type)){
			JOptionPane.showMessageDialog(null, "请输入类型");
			return;
		}
		Connection con = null;
		try {
			con = dbUtil.getCon();
			KeFang g = guestRoomDao.findByRoomNum(con, Integer.parseInt(num));
			//判断房间号是否存在
			if(g != null){
				JOptionPane.showMessageDialog(null, "该房间已存在");
				return;
			}
			
			//封装对象
			KeFang guestRoom = new KeFang();
			guestRoom.setNum(Integer.parseInt(num));
			guestRoom.setState(0);
			guestRoom.setType(type);
			
			//保存数据
			int result = guestRoomDao.addGusteRoom(con, guestRoom);
			if(result != 0){
				JOptionPane.showMessageDialog(null, "添加成功");
			}else{
				JOptionPane.showMessageDialog(null, "添加失败");
			}
		} catch (Exception e) {
			JOptionPane.showMessageDialog(null, "添加失败");
			e.printStackTrace();
		}finally{
			try {
				dbUtil.closeCon(con);//关闭数据库连接
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
		
	}
	/**
	 * 清空输入框的值
	 */
	private void reset(){
		this.num.setText("");
		this.type.setText("");
	}

	void numActionPerformed(java.awt.event.ActionEvent evt) {
		// TODO add your handling code here:
	}

//GEN-BEGIN:variables
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JTextField num;
private javax.swing.JButton reset;
private javax.swing.JButton save;
private javax.swing.JTextField type;
// End of variables declaration//GEN-END:variables

}

2.addHousehold

/*
 * addHousehold.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;

import hotel.dao.ShouYinDao;
import hotel.dao.KeFangDao;
import hotel.dao.RuZhuDao;
import hotel.model.ShouYin;
import hotel.model.KeFang;
import hotel.model.ZhuHu;
import hotel.util.DbUtil;

import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;

import org.jdesktop.layout.GroupLayout;
import org.jdesktop.layout.LayoutStyle;


/**
 *
 * 添加住户窗口
 */
public class addHousehold extends JInternalFrame {
	
	//实例化对象
	DbUtil dbUtil = new DbUtil();
	RuZhuDao householdDao = new RuZhuDao();
	KeFangDao guestRoomDao = new KeFangDao();
	ShouYinDao cashierDao = new ShouYinDao();

	//创建窗口
	public addHousehold() {
		initComponents();
		this.setLocation(200, 50);
	}

	//控件
	private void initComponents() {

		jLabel1 = new JLabel();
		jLabel2 = new JLabel();
		jLabel3 = new JLabel();
		jLabel4 = new JLabel();
		name = new JTextField();
		idNum = new JTextField();
		money = new JTextField();
		roomNum = new JTextField();
		jButton1 = new JButton();
		jButton2 = new JButton();

		setClosable(true);
		setIconifiable(true);
		setMaximizable(true);
		setTitle("添加住户");

		jLabel1.setText("姓名");

		jLabel2.setText("身份证");

		jLabel3.setText("房间号");

		jLabel4.setText("收费");

		jButton1.setText("添加");
		jButton1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				jButton1ActionPerformed(evt);
			}
		});

		jButton2.setText("重置");
		/**
		 * layout布局
		 */
		GroupLayout layout = new GroupLayout(getContentPane());
		getContentPane().setLayout(layout);
		layout.setHorizontalGroup(layout.createParallelGroup(GroupLayout.LEADING)
						.add(layout.createSequentialGroup()
						.addContainerGap(56, Short.MAX_VALUE)
						.add(layout.createParallelGroup(GroupLayout.LEADING)
						.add(GroupLayout.TRAILING,layout.createSequentialGroup()
						.add(jButton1)
						.add(51,51,51)
						.add(jButton2)
						.add(119,119,119))
						.add(GroupLayout.TRAILING,layout.createSequentialGroup()
						.add(layout.createParallelGroup(GroupLayout.TRAILING)
						.add(jLabel3)
						.add(jLabel4)
						.add(jLabel2)
						.add(jLabel1))
						.add(50,50,50)
						.add(layout.createParallelGroup(GroupLayout.LEADING)
						.add(layout.createParallelGroup(GroupLayout.TRAILING,false)
						.add(GroupLayout.LEADING,idNum)
						.add(GroupLayout.LEADING,name,GroupLayout.DEFAULT_SIZE,195,Short.MAX_VALUE))
						.add(layout.createParallelGroup(GroupLayout.TRAILING,false)
						.add(GroupLayout.LEADING,money)
						.add(GroupLayout.LEADING,roomNum,GroupLayout.DEFAULT_SIZE,193,Short.MAX_VALUE)))
						.add(89,89,89)))));
						layout.setVerticalGroup(layout.createParallelGroup(GroupLayout.LEADING)
						.add(layout.createSequentialGroup()
						.add(39, 39, 39)
						.add(layout.createParallelGroup(GroupLayout.BASELINE)
						.add(jLabel1)
						.add(name,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
						.addPreferredGap(LayoutStyle.RELATED)
						.add(layout.createParallelGroup(GroupLayout.BASELINE)
						.add(jLabel2)
						.add(idNum,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
						.addPreferredGap(LayoutStyle.RELATED)
						.add(layout.createParallelGroup(GroupLayout.BASELINE)
						.add(jLabel3)
						.add(roomNum,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
						.add(4, 4, 4)
						.add(layout.createParallelGroup(GroupLayout.BASELINE)
						.add(jLabel4)
						.add(money,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
						.add(18, 18, 18)
						.add(layout.createParallelGroup(GroupLayout.BASELINE)
						.add(jButton1)
						.add(jButton2))
						.addContainerGap()));

		pack();
	}// </editor-fold>
	//GEN-END:initComponents

	private void jButton1ActionPerformed(ActionEvent evt) {
		//获取输入框的值
		String name = this.name.getText();//姓名
		String idNum = this.idNum.getText();//身份证号
		
		String roomNum = this.roomNum.getText();//房间号
		String money = this.money.getText();//费用
		
		//验证值是否为空
		if("".equals(name) || name == null){
			JOptionPane.showMessageDialog(null, "请输入姓名");
			return;
		}
		if("".equals(idNum) || idNum == null){
			JOptionPane.showMessageDialog(null, "请输入身份证号码");
			return;
		}
		if("".equals(roomNum) || roomNum == null){
			JOptionPane.showMessageDialog(null, "请输入房间号");
			return;
		}
		if("".equals(money) || money == null){
			JOptionPane.showMessageDialog(null, "请输入入住费用");
		}
		//封装对象
		ZhuHu household = new ZhuHu();
		household.setName(name);
		household.setIdNum(idNum);
		household.setRoomNum(Integer.parseInt(roomNum));
		household.setMoney(Integer.parseInt(money));
		household.setState("入住中");
		Connection con = null;
		try {
			con = dbUtil.getCon();
			KeFang gr = new KeFang();
			
			//判断房间是否存在或者是否已有人入住
			gr = guestRoomDao.findByRoomNum(con, Integer.parseInt(roomNum));
			if(gr == null){
				JOptionPane.showMessageDialog(null, "未查询到客房信息");
				return;
			}
			if(gr.getState() == 1){
				JOptionPane.showMessageDialog(null, "房间占用，请重新选择房间");
				return;
			}
			int result = householdDao.addHousehold(con, household);
			if(result != 0){
				JOptionPane.showMessageDialog(null, "添加成功");
				reset();
				//更新房间状态未已入住
				KeFang guestRoom = new KeFang();
				guestRoom.setNum(Integer.parseInt(roomNum));
				guestRoom.setState(1);
				guestRoomDao.updateState(con, guestRoom);
				//添加收银信息
				ShouYin cashier = new ShouYin();
				cashier.setType("收入");
				cashier.setMoney(money);
				cashier.setRemarks("用户"+name+"入住收入金额"+money);
				cashierDao.addCashier(con, cashier);
				
			}else{
				JOptionPane.showMessageDialog(null, "添加失败");
			}
		} catch (Exception e) {
			JOptionPane.showMessageDialog(null, "添加失败");
			e.printStackTrace();
		}finally{
			try {
				dbUtil.closeCon(con);//关闭数据库连接
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
	//清空输入框的值
	public void reset(){
		this.name.setText("");
		this.idNum.setText("");
		this.roomNum.setText("");
		this.money.setText("");
	}

	//窗口控件
	private JTextField idNum;
	private	JButton jButton1;
	private JButton jButton2;
	private JLabel jLabel1;
	private JLabel jLabel2;
	private JLabel jLabel3;
	private JLabel jLabel4;
	private JTextField money;
	private JTextField name;
	private JTextField roomNum;
	

}

3.BookManger

/*
 * BookManger.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;

import hotel.dao.YuDingDao;
import hotel.model.YuDing;
import hotel.util.DbUtil;

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;

import org.jdesktop.layout.GroupLayout;
import org.jdesktop.layout.LayoutStyle;
/**
 *添加预订信息
 * @author Administrator
 *
 */
public class BookManger extends javax.swing.JInternalFrame {
	//实例化对象
	DbUtil dbUtil = new DbUtil();
	YuDingDao bookDao = new YuDingDao();

	/** 创建窗口 */
	public BookManger() {
		initComponents();
		this.setLocation(200, 50);//设置窗口位置
	}

	//初始化控件
	private void initComponents() {

		jLabel1 = new JLabel();
		name = new JTextField();
		jLabel2 = new JLabel();
		phone = new JTextField();
		jLabel3 = new JLabel();
		checkTime = new JTextField();
		save = new JButton();
		jButton2 = new JButton();

		setClosable(true);
		setIconifiable(true);
		setTitle("预订管理");

		jLabel1.setText("姓名");

		jLabel2.setText("联系电话");

		jLabel3.setText("入住时间");

		save.setText("保存");
		save.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				saveActionPerformed(evt);
			}
		});

		jButton2.setText("重置");
		/**
		 * layout布局
		 */
		GroupLayout layout = new GroupLayout(getContentPane());
		getContentPane().setLayout(layout);
		layout.setHorizontalGroup(layout.createParallelGroup(GroupLayout.LEADING)
		.add(layout.createSequentialGroup()
		.add(layout.createParallelGroup(GroupLayout.LEADING)
		.add(layout.createSequentialGroup()
		.add(32,32,32)
		.add(layout.createParallelGroup(GroupLayout.LEADING)
		.add(jLabel3)
		.add(jLabel2)
		.add(jLabel1))
		.addPreferredGap(LayoutStyle.RELATED)
		.add(layout.createParallelGroup(GroupLayout.LEADING,false)
		.add(GroupLayout.TRAILING,phone,GroupLayout.DEFAULT_SIZE,153,Short.MAX_VALUE)
		.add(save)
		.add(checkTime)
		.add(GroupLayout.TRAILING,name)))
		.add(layout.createSequentialGroup()
		.add(186,186,186)
		.add(jButton2))).addContainerGap(89, Short.MAX_VALUE)));
		layout.setVerticalGroup(layout.createParallelGroup(GroupLayout.LEADING)
		.add(layout.createSequentialGroup()
		.add(30, 30, 30)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jLabel1)
		.add(name,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
		.addPreferredGap(LayoutStyle.RELATED)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jLabel2)
		.add(phone,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
		.addPreferredGap(LayoutStyle.RELATED)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jLabel3)
		.add(checkTime,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
		.addPreferredGap(LayoutStyle.RELATED,28, Short.MAX_VALUE)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jButton2)
		.add(save))
		.addContainerGap()));

		pack();
	}
	/**
	 * 保存按钮事件
	 * @param evt
	 */
	private void saveActionPerformed(java.awt.event.ActionEvent evt) {
		String name = this.name.getText();//姓名
		String phone = this.phone.getText();//联系电话
		String checkTime = this.checkTime.getText();//预订入住时间
		
		//验证数据是否为空
		if (name == null || "".equals(name)) {
			JOptionPane.showMessageDialog(null, "请输入入住人姓名");
		}
		if (phone == null || "".equals(phone)) {
			JOptionPane.showMessageDialog(null, "请输入联系电话");
		}
		if (checkTime == null || "".equals(checkTime)) {
			JOptionPane.showMessageDialog(null, "请输入入住时间");
		}
		//封装数据对象
		YuDing book = new YuDing();
		book.setName(name);
		book.setPhone(phone);
		book.setCheckTime(checkTime);
		book.setState("已预订");
		Connection con = null;
		//保存数据
		try {
			con = dbUtil.getCon();
			int result = bookDao.addBook(con, book);
			if (result != 0) {
				JOptionPane.showMessageDialog(null, "保存成功");
				reset();
			} else {
				JOptionPane.showMessageDialog(null, "保存失败");
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			JOptionPane.showMessageDialog(null, "保存失败");
		}finally{
			try {
				dbUtil.closeCon(con);//关闭数据库连接
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	//清空输入框的值
	private void reset() {
		this.name.setText("");
		this.phone.setText("");
		this.checkTime.setText("");
	}

	/** 控件 */
	private JTextField checkTime;
	private JButton jButton2;
	private JLabel jLabel1;
	private JLabel jLabel2;
	private JLabel jLabel3;
	private JTextField name;
	private JTextField phone;
	private JButton save;
	

}

4.editAdmin

 * editAdmin.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import hotel.dao.BianJiDao;
import hotel.util.DbUtil;

import java.sql.Connection;

import javax.swing.JOptionPane;

/**
 *
 * @author  __USER__
 */
public class editAdmin extends javax.swing.JInternalFrame {
	DbUtil dbUtil = new DbUtil();
	BianJiDao editModulDao = new BianJiDao();

	/** Creates new form editAdmin */
	public editAdmin() {
		initComponents();
	}

	/** 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.
	 */
	//GEN-BEGIN:initComponents
	// <editor-fold defaultstate="collapsed" desc="Generated Code">
	private void initComponents() {

		jLabel1 = new javax.swing.JLabel();
		jTextField1 = new javax.swing.JTextField();
		jLabel2 = new javax.swing.JLabel();
		password = new javax.swing.JPasswordField();
		jLabel3 = new javax.swing.JLabel();
		repassword = new javax.swing.JPasswordField();
		jButton1 = new javax.swing.JButton();
		jLabel4 = new javax.swing.JLabel();
		oldpassword = new javax.swing.JPasswordField();

		setClosable(true);
		setResizable(true);

		jLabel1.setText("\u7528\u6237\u540d");

		jTextField1.setText("admin");
		jTextField1.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				jTextField1ActionPerformed(evt);
			}
		});

		jLabel2.setText("\u65b0\u5bc6\u7801");

		password.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				passwordActionPerformed(evt);
			}
		});

		jLabel3.setText("\u786e\u8ba4\u5bc6\u7801");

		jButton1.setText("\u4fee\u6539");
		jButton1.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				jButton1ActionPerformed(evt);
			}
		});

		jLabel4.setText("\u65e7\u5bc6\u7801");

		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.LEADING)
								.add(layout
										.createSequentialGroup()
										.add(26, 26, 26)
										.add(layout
												.createParallelGroup(
														org.jdesktop.layout.GroupLayout.TRAILING)
												.add(jLabel3)
												.add(jLabel2)
												.add(layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.LEADING)
														.add(jLabel4)
														.add(jLabel1)))
										.addPreferredGap(
												org.jdesktop.layout.LayoutStyle.RELATED)
										.add(layout
												.createParallelGroup(
														org.jdesktop.layout.GroupLayout.LEADING,
														false)
												.add(oldpassword, 0, 0,
														Short.MAX_VALUE)
												.add(jTextField1,
														org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
														181, Short.MAX_VALUE)
												.add(repassword, 0, 0,
														Short.MAX_VALUE)
												.add(password, 0, 0,
														Short.MAX_VALUE)))
								.add(layout.createSequentialGroup()
										.add(134, 134, 134).add(jButton1)))
						.addContainerGap(82, Short.MAX_VALUE)));
		layout.setVerticalGroup(layout
				.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
				.add(layout
						.createSequentialGroup()
						.add(26, 26, 26)
						.add(layout
								.createParallelGroup(
										org.jdesktop.layout.GroupLayout.BASELINE)
								.add(jTextField1,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
										org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
								.add(jLabel1))
						.add(18, 18, 18)
						.add(layout
								.createParallelGroup(
										org.jdesktop.layout.GroupLayout.BASELINE)
								.add(jLabel4)
								.add(oldpassword,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
										org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
						.add(12, 12, 12)
						.add(layout
								.createParallelGroup(
										org.jdesktop.layout.GroupLayout.BASELINE)
								.add(password,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
										org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
								.add(jLabel2))
						.addPreferredGap(
								org.jdesktop.layout.LayoutStyle.UNRELATED)
						.add(layout
								.createParallelGroup(
										org.jdesktop.layout.GroupLayout.BASELINE)
								.add(repassword,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
										org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
										org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
								.add(jLabel3))
						.addPreferredGap(
								org.jdesktop.layout.LayoutStyle.RELATED, 23,
								Short.MAX_VALUE).add(jButton1).add(28, 28, 28)));

		pack();
	}// </editor-fold>
	//GEN-END:initComponents

	private void passwordActionPerformed(java.awt.event.ActionEvent evt) {
		// TODO add your handling code here:
	}

	private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
		Connection con = null;
		String password = new String(this.password.getPassword());
		String repassword = new String(this.repassword.getPassword());
		String oldpassword = new String(this.oldpassword.getPassword());
		try {
			con = dbUtil.getCon();
			String oldpwd = editModulDao.oldPassword(con);
			if(!oldpassword.equals(oldpwd)){
				JOptionPane.showMessageDialog(null, "旧密码不符");
				return;
			}
		} catch (Exception e1) {
			e1.printStackTrace();
		}
		if (password == null || "".equals(password)) {
			JOptionPane.showMessageDialog(null, "请输入密码");
			return;
		}
		if (!password.equals(repassword)) {
			JOptionPane.showMessageDialog(null, "两次输入密码不一致");
			return;
		}
		//修改数据库操作
		try {
			con = dbUtil.getCon();
			int result = editModulDao.updateAdmin(con, password);
			if (result != 0) {
				JOptionPane.showMessageDialog(null, "修改成功");
				this.password.setText("");
			} else {
				JOptionPane.showMessageDialog(null, "修改失败");
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {
				dbUtil.closeCon(con);//关闭数据库连接
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

	private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
		// TODO add your handling code here:
	}

	//GEN-BEGIN:variables
	// Variables declaration - do not modify
	private javax.swing.JButton jButton1;
	private javax.swing.JLabel jLabel1;
	private javax.swing.JLabel jLabel2;
	private javax.swing.JLabel jLabel3;
	private javax.swing.JLabel jLabel4;
	private javax.swing.JTextField jTextField1;
	private javax.swing.JPasswordField oldpassword;
	private javax.swing.JPasswordField password;
	private javax.swing.JPasswordField repassword;
	// End of variables declaration//GEN-END:variables

}```


## 5.editData
```java
/*
 * editData.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;

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

import org.jdesktop.layout.GroupLayout;
import org.jdesktop.layout.LayoutStyle;

import hotel.dao.BianJiDao;
import hotel.util.DbUtil;

/**
 * 修改管理员资料
 * @author Administrator
 *
 */
public class editData extends javax.swing.JInternalFrame {

	DbUtil dbUtil = new DbUtil();
	BianJiDao editModulDao = new BianJiDao();

	/** Creates new form editData */
	public editData() {
		initComponents();
		this.setLocation(300, 100);//设置窗口位置
	}
	/** 控件 */
	private void initComponents() {

		jLabel1 = new JLabel();
		jTextField1 = new JTextField();
		jLabel2 = new JLabel();
		password = new JPasswordField();
		password2 = new JPasswordField();
		jButton1 = new JButton();
		reset = new JButton();

		setClosable(true);
		setTitle("修改资料");

		jLabel1.setText("账号");

		jTextField1.setEditable(false);
		jTextField1.setText("admin");

		jLabel2.setText("密码");

		jButton1.setText("修改");
		jButton1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				jButton1ActionPerformed(evt);
			}
		});

		reset.setText("重置");
		reset.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				resetActionPerformed(evt);
			}
		});
		/**
		 * layout布局
		 */
		GroupLayout layout = new GroupLayout(getContentPane());
		getContentPane().setLayout(layout);
		layout.setHorizontalGroup(layout.createParallelGroup(GroupLayout.LEADING)
		.add(layout.createSequentialGroup()
		.add(29, 29, 29)
		.add(layout.createParallelGroup(GroupLayout.LEADING,false)
		.add(layout.createSequentialGroup()
		.add(jLabel1)
		.add(18,18,18)
		.add(jTextField1,GroupLayout.PREFERRED_SIZE,172,GroupLayout.PREFERRED_SIZE))
		.add(layout.createSequentialGroup()
		.add(jLabel2)
		.add(18,18,18)
		.add(layout.createParallelGroup(GroupLayout.LEADING)
		.add(password,0,0,Short.MAX_VALUE)
		.add(layout.createSequentialGroup()
		.add(jButton1).addPreferredGap(LayoutStyle.RELATED,35,Short.MAX_VALUE)
		.add(reset)
		.add(23,23,23)))))
		.addContainerGap(52, Short.MAX_VALUE)));
		layout.setVerticalGroup(layout.createParallelGroup(GroupLayout.LEADING)
		.add(layout.createSequentialGroup()
		.add(31, 31, 31)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jLabel1)
		.add(jTextField1,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
		.add(18, 18, 18)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jLabel2)
		.add(password,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE))
		.add(18, 18, 18)
		.add(layout.createParallelGroup(GroupLayout.BASELINE)
		.add(jButton1).add(reset))
		.addContainerGap(35, Short.MAX_VALUE)));

		pack();
	}

	/**
	 * 修改管理员资料
	 */
	//修改按钮事件
	private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
		String password = new String(this.password.getPassword());
		String repassword = new String(this.password2.getPassword());
		if (password == null || "".equals(password)) {
			JOptionPane.showMessageDialog(null, "请输入密码");
			return;
		}
		if(!password.equals(repassword)){
			JOptionPane.showMessageDialog(null, "两次输入密码不一致");
			return;
		}
		Connection con = null;
		//修改数据库操作
		try {
			con = dbUtil.getCon();
			int result = editModulDao.updateAdmin(con, password);
			if (result != 0) {
				JOptionPane.showMessageDialog(null, "修改成功");
				this.password.setText("");
			} else {
				JOptionPane.showMessageDialog(null, "修改失败");
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {
				dbUtil.closeCon(con);//关闭数据库连接
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	//重置输入框的值
	private void resetActionPerformed(ActionEvent evt) {
		this.password.setText("");
	}

	//页面控件
	private JButton jButton1;
	private JLabel jLabel1;
	private JLabel jLabel2;
	private JTextField jTextField1;
	private JPasswordField password;
	private JPasswordField password2;
	private JButton reset;
	

}

5.inAccountManger

/*
 * inAccountManger.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import hotel.dao.YuDingDao;
import hotel.dao.ShouYinDao;
import hotel.model.ShouYin;
import hotel.util.DbUtil;

import java.sql.Connection;
import java.sql.ResultSet;
import java.util.Vector;

import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;

import com.sun.org.apache.bcel.internal.generic.NEW;

/**
 *
 * @author  __USER__
 */
public class inAccountManger extends javax.swing.JInternalFrame {

	DbUtil dbUtil = new DbUtil();
	ShouYinDao cashierDao = new ShouYinDao();

	/** Creates new form inAccountManger */
	public inAccountManger() {
		initComponents();
		this.fillTable();
		this.setLocation(200, 50);//设置窗口位置
	}

	/**
	 * 填充表格数据
	 * @param name
	 */
	public void fillTable() {
		DefaultTableModel dtm = (DefaultTableModel) inAccountTable.getModel();
		dtm.setRowCount(0);
		Connection con = null;
		try {
			con = dbUtil.getCon();
			ResultSet re = cashierDao.cashier(con);
			while (re.next()) {
				Vector v = new Vector();
				//添加每一行的数据
				v.add(re.getString("id"));
				v.add(re.getString("type"));
				v.add(re.getString("money"));
				v.add(re.getString("remarks"));
				v.add(re.getString("time"));
				dtm.addRow(v);
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {
				dbUtil.closeCon(con);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

	/** 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.
	 */
	//GEN-BEGIN:initComponents
	// <editor-fold defaultstate="collapsed" desc="Generated Code">
	private void initComponents() {

		jScrollPane1 = new javax.swing.JScrollPane();
		inAccountTable = new javax.swing.JTable();
		jPanel1 = new javax.swing.JPanel();
		jLabel1 = new javax.swing.JLabel();
		money = new javax.swing.JTextField();
		jLabel2 = new javax.swing.JLabel();
		remarks = new javax.swing.JTextField();
		add = new javax.swing.JButton();
		jLabel3 = new javax.swing.JLabel();
		type = new javax.swing.JTextField();

		setClosable(true);
		setIconifiable(true);
		setTitle("\u5165\u8d26\u7ba1\u7406");

		inAccountTable.setModel(new javax.swing.table.DefaultTableModel(
				new Object[][] { { null, null, null, null, null },
						{ null, null, null, null, null },
						{ null, null, null, null, null },
						{ null, null, null, null, null } }, new String[] {
						"编号", "状态", "金额", "备注", "时间" }) {
			boolean[] canEdit = new boolean[] { false, false, false, false,
					false };

			public boolean isCellEditable(int rowIndex, int columnIndex) {
				return canEdit[columnIndex];
			}
		});
		jScrollPane1.setViewportView(inAccountTable);

		jLabel1.setText("\u91d1\u989d");

		jLabel2.setText("\u5907\u6ce8");

		add.setText("\u6dfb\u52a0");
		add.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				addActionPerformed(evt);
			}
		});

		jLabel3.setText("\u7c7b\u578b");

		type.setEditable(false);
		type.setText("\u6536\u5165");
		type.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				jTextField1ActionPerformed(evt);
			}
		});

		org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(
				jPanel1);
		jPanel1.setLayout(jPanel1Layout);
		jPanel1Layout
				.setHorizontalGroup(jPanel1Layout
						.createParallelGroup(
								org.jdesktop.layout.GroupLayout.LEADING)
						.add(
								jPanel1Layout
										.createSequentialGroup()
										.addContainerGap()
										.add(
												jPanel1Layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.TRAILING)
														.add(add)
														.add(
																jPanel1Layout
																		.createSequentialGroup()
																		.add(
																				jPanel1Layout
																						.createParallelGroup(
																								org.jdesktop.layout.GroupLayout.TRAILING,
																								false)
																						.add(
																								org.jdesktop.layout.GroupLayout.LEADING,
																								jPanel1Layout
																										.createSequentialGroup()
																										.add(
																												jLabel3)
																										.addPreferredGap(
																												org.jdesktop.layout.LayoutStyle.RELATED)
																										.add(
																												type))
																						.add(
																								jPanel1Layout
																										.createSequentialGroup()
																										.add(
																												jLabel1)
																										.addPreferredGap(
																												org.jdesktop.layout.LayoutStyle.RELATED)
																										.add(
																												money,
																												org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																												176,
																												org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
																		.add(
																				18,
																				18,
																				18)
																		.add(
																				jLabel2)
																		.add(
																				18,
																				18,
																				18)
																		.add(
																				remarks,
																				org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																				181,
																				org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
										.addContainerGap(439, Short.MAX_VALUE)));
		jPanel1Layout
				.setVerticalGroup(jPanel1Layout
						.createParallelGroup(
								org.jdesktop.layout.GroupLayout.LEADING)
						.add(
								jPanel1Layout
										.createSequentialGroup()
										.addContainerGap()
										.add(
												jPanel1Layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.BASELINE)
														.add(jLabel1)
														.add(
																money,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
														.add(jLabel2)
														.add(
																remarks,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
										.add(18, 18, 18)
										.add(
												jPanel1Layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.BASELINE)
														.add(jLabel3)
														.add(
																type,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
										.addPreferredGap(
												org.jdesktop.layout.LayoutStyle.RELATED,
												org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
												Short.MAX_VALUE).add(add)));

		org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(
				getContentPane());
		getContentPane().setLayout(layout);
		layout.setHorizontalGroup(layout.createParallelGroup(
				org.jdesktop.layout.GroupLayout.LEADING).add(
				org.jdesktop.layout.GroupLayout.TRAILING,
				layout.createSequentialGroup().addContainerGap().add(
						layout.createParallelGroup(
								org.jdesktop.layout.GroupLayout.TRAILING).add(
								org.jdesktop.layout.GroupLayout.LEADING,
								jPanel1,
								org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
								org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
								Short.MAX_VALUE).add(
								org.jdesktop.layout.GroupLayout.LEADING,
								jScrollPane1,
								org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
								897, Short.MAX_VALUE)).addContainerGap()));
		layout.setVerticalGroup(layout.createParallelGroup(
				org.jdesktop.layout.GroupLayout.LEADING).add(
				layout.createSequentialGroup().addContainerGap().add(
						jScrollPane1,
						org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 131,
						org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
						.addPreferredGap(
								org.jdesktop.layout.LayoutStyle.UNRELATED).add(
								jPanel1,
								org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
								org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
								org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
						.addContainerGap(30, Short.MAX_VALUE)));

		pack();
	}// </editor-fold>
	//GEN-END:initComponents

	private void addActionPerformed(java.awt.event.ActionEvent evt) {
		String money = this.money.getText();
		String remarks = this.remarks.getText();
		String type = this.type.getText();
		if("".equals(money) || money == null){
			JOptionPane.showMessageDialog(null, "请输入金额");
			return;
		}
		if("".equals(remarks) || remarks == null){
			JOptionPane.showMessageDialog(null, "请输入备注");
			return;
		}
		ShouYin cashier = new ShouYin();
		cashier.setMoney(money);
		cashier.setRemarks(remarks);
		cashier.setType(type);
		Connection con  = null;	
		try {
			con = dbUtil.getCon();
			int result = cashierDao.addCashier(con, cashier);
			if(result != 0){
				JOptionPane.showMessageDialog(null, "添加成功!");
				this.fillTable();
				this.money.setText("");
				this.remarks.setText("");
			}
		} catch (Exception e) {
			JOptionPane.showMessageDialog(null, "添加失败!");
			e.printStackTrace();
		}
	}

	private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
		// TODO add your handling code here:
	}

	//GEN-BEGIN:variables
	// Variables declaration - do not modify
	private javax.swing.JButton add;
	private javax.swing.JTable inAccountTable;
	private javax.swing.JLabel jLabel1;
	private javax.swing.JLabel jLabel2;
	private javax.swing.JLabel jLabel3;
	private javax.swing.JPanel jPanel1;
	private javax.swing.JScrollPane jScrollPane1;
	private javax.swing.JTextField type;
	private javax.swing.JTextField money;
	private javax.swing.JTextField remarks;
	// End of variables declaration//GEN-END:variables

}

6.login

/*
 * login.java
 *
 * Created on __DATE__, __TIME__
 */

package hotel.view;

import hotel.dao.UserDao;
import hotel.model.User;
import hotel.util.DbUtil;

import java.awt.Font;
import java.sql.Connection;

import javax.swing.JOptionPane;
import javax.swing.UIManager;


/**
 *
 * @author  __USER__
 */
public class login extends javax.swing.JFrame {
	
	DbUtil dbUtil = new DbUtil();
	UserDao userDao = new UserDao();

	/** Creates new form login */
	public login() {
		//改变系统默认字体
		Font font = new Font("Dialog", Font.PLAIN, 12);
		java.util.Enumeration keys = UIManager.getDefaults().keys();
		while (keys.hasMoreElements()) {
			Object key = keys.nextElement();
			Object value = UIManager.get(key);
			if (value instanceof javax.swing.plaf.FontUIResource) {
				UIManager.put(key, font);
			}
		}
		initComponents();
		// 设置Frame居中显示
		this.setLocationRelativeTo(null);
	}

	/** 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.
	 */
	//GEN-BEGIN:initComponents
	// <editor-fold defaultstate="collapsed" desc="Generated Code">
	private void initComponents() {

		jLabel1 = new javax.swing.JLabel();
		jLabel2 = new javax.swing.JLabel();
		userName = new javax.swing.JTextField();
		password = new javax.swing.JPasswordField();
		login = new javax.swing.JButton();
		reset = new javax.swing.JButton();

		setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
		setTitle("\u7ba1\u7406\u5458\u767b\u9646");

		jLabel1.setText("\u767b\u5f55\u540d");

		jLabel2.setText("\u5bc6\u7801");

		login.setText("\u767b\u9646");
		login.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				loginActionPerformed(evt);
			}
		});

		reset.setText("\u91cd\u7f6e");

		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.LEADING)
														.add(
																layout
																		.createSequentialGroup()
																		.add(
																				39,
																				39,
																				39)
																		.add(
																				layout
																						.createParallelGroup(
																								org.jdesktop.layout.GroupLayout.LEADING)
																						.add(
																								jLabel1)
																						.add(
																								jLabel2))
																		.addPreferredGap(
																				org.jdesktop.layout.LayoutStyle.RELATED)
																		.add(
																				layout
																						.createParallelGroup(
																								org.jdesktop.layout.GroupLayout.LEADING,
																								false)
																						.add(
																								password,
																								0,
																								0,
																								Short.MAX_VALUE)
																						.add(
																								userName,
																								org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
																								154,
																								Short.MAX_VALUE)))
														.add(
																layout
																		.createSequentialGroup()
																		.add(
																				81,
																				81,
																				81)
																		.add(
																				login)
																		.add(
																				18,
																				18,
																				18)
																		.add(
																				reset)))
										.addContainerGap(55, Short.MAX_VALUE)));
		layout
				.setVerticalGroup(layout
						.createParallelGroup(
								org.jdesktop.layout.GroupLayout.LEADING)
						.add(
								layout
										.createSequentialGroup()
										.add(32, 32, 32)
										.add(
												layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.BASELINE)
														.add(jLabel1)
														.add(
																userName,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
										.add(18, 18, 18)
										.add(
												layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.BASELINE)
														.add(jLabel2)
														.add(
																password,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
																org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
																org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
										.addPreferredGap(
												org.jdesktop.layout.LayoutStyle.RELATED,
												18, Short.MAX_VALUE)
										.add(
												layout
														.createParallelGroup(
																org.jdesktop.layout.GroupLayout.BASELINE)
														.add(reset).add(login))
										.addContainerGap()));

		pack();
	}// </editor-fold>
	//GEN-END:initComponents

	private void loginActionPerformed(java.awt.event.ActionEvent evt) {
		String userName = this.userName.getText();
		String password = new String(this.password.getPassword());
		if("".equals(userName) || userName == null){
			JOptionPane.showMessageDialog(null, "用户名不能为空");
			return;
		}
		if("".equals(password) || password == null){
			JOptionPane.showMessageDialog(null, "密码不能为空");
			return;
		}
		User user = new User();
		user.setUserName(userName);
		user.setPassword(password);
		Connection conn = null;
		try {
			conn = dbUtil.getCon();
			User us = userDao.login(conn, user);
			if(us == null){
				JOptionPane.showMessageDialog(null, "用户名或密码错误");
			}else{
				this.dispose();
				new main().setVisible(true);
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				dbUtil.closeCon(conn);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

	/**
	 * @param args the command line arguments
	 */
	public static void main(String args[]) {
		java.awt.EventQueue.invokeLater(new Runnable() {
			public void run() {
				new login().setVisible(true);
			}
		});
	}

	//GEN-BEGIN:variables
	// Variables declaration - do not modify
	private javax.swing.JLabel jLabel1;
	private javax.swing.JLabel jLabel2;
	private javax.swing.JButton login;
	private javax.swing.JPasswordField password;
	private javax.swing.JButton reset;
	private javax.swing.JTextField userName;
	// End of variables declaration//GEN-END:variables

}

五、联系与交流

扣：969060742 完整程序资源、sql、代码

文章来源:https://blog.csdn.net/m0_58065010/article/details/134916509
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