java实现酒店管理系统代码分享(java,编程语言)

实体类

一共3个实体类，每个实体类有各自的属性和get，set方法，没什么好说的

管理员实体类：

/*
 管理员实体
 */
package cn.edu.shengda;

/**
 *
 * @author Administrator
 */
public class Admin {
 private String id; //编号
 private String name; //姓名
 private String password; //密码
 private String extend; //权限
 void setID(String id) {
 this.id=id;
 }
 void setName(String name) {
 this.name=name;
 }
 void setPassword(String password) {
 this.password=password;
 }
 void setExtend(String extend) {
 this.extend=extend;
 }
 String getID() {
 return this.id;
 }
 String getName() {
 return this.name;
 }
 String getPassword() {
 return this.password;
 }
 String getExtend() {
 return this.extend;
 }
 
}

客户实体类：

/*
 客户实体
 */
package cn.edu.shengda;

import java.sql.Date;


/**
 *
 * @author Administrator
 */
public class Customer {
 private int id; //编号
 private String name; //姓名
 private String card; //身份证
 private int room; //房间号
 private Float money; //押金
 private Date time; //入住时间
 private String sex; //性别
 private String hometown; //籍贯
 int getId() {
 return this.id;
 }
 String getName() {
 return this.name;
 }
 String getCard() {
 return this.card;
 }
 int getRoom() {
 return this.room;
 }
 Float getMoney() {
 return this.money;
 }
 Date getTime() {
 return this.time;
 }
 String getSex() {
 return this.sex;
 }
 String getHometown() {
 return this.hometown;
 }
}

客房实体：

/*
 客房实体
 */
package cn.edu.shengda;

/**
 *
 * @author Administrator
 */
public class Room {
 private int id; //编号
 private String grade ; //级别
 private float price; //价格
 private int state; //状态
 private String remarks; //备注
 
 void setID(int ID) {
 this.id = ID;
 }
 
 void setGrade(String grade) {
 this.grade = grade;
 }
 
 void setPrice(float price) {
 this.price = price;
 }
 
 void setState(int state) {
 this.state = state;
 }
 
 void setRemarks(String remarks) {
 this.remarks = remarks;
 }
 
 int getID() {
 return this.id;
 }
 
 String getGrade() {
 return this.grade;
 }
 
 float getPrice() {
 return this.price;
 }
 
 int getState() {
 return this.state;
 }
 
 String getRemarks() {
 return this.remarks;
 }
}

图形化界面及逻辑实现

登录界面：

包含两个文本框，分别是用户名和密码

两个按钮，登录和注册

点击登录，将会判断用户名和密码是否正确，然后提示不同的结果

注册页面

点击注册，将会跳转到注册页面

点击注册后也会有相应的提示

判断注册是否符合规则

import java.sql.PreparedStatement;
import java.sql.SQLException;

import javax.swing.JOptionPane;

public class Register {
 String name;
 String ID;
 String password;
 String confirmpassword;
 
 void setName(String name) {
 this.name = name;
 }
 void setID(String ID) {
 this.ID = ID;
 }
 void setPassword(String password) {
 this.password = password;
 }
 void setconfirmpasswd(String confirmpassword) {
 this.confirmpassword = confirmpassword;
 }
 
 private PreparedStatement getPreparedStatement(String sql) throws SQLException {
 return new DBConnecter().getConnection().prepareStatement(sql);
 }
 
 //判断注册的账号是否符合规则
 boolean JudgeRegister() throws SQLException {
 
 if(this.name.equals("")) {
 JOptionPane.showMessageDialog(null, "用户名不能为空！", "用户名", JOptionPane.ERROR_MESSAGE);
 return false;
 }
 
 if(this.ID.equals("")) {
 JOptionPane.showMessageDialog(null, "账号不能为空！", "账号为空", JOptionPane.ERROR_MESSAGE);
 return false;
 }
 
 if(this.password.equals("")) {
 JOptionPane.showMessageDialog(null, "密码不能为空！", "密码为空", JOptionPane.ERROR_MESSAGE);
 return false;
 }
 
 if(!this.password.equals(this.confirmpassword)) {
 JOptionPane.showMessageDialog(null, "两次输入的密码不一致!", "密码不一致", JOptionPane.ERROR_MESSAGE);
 return false;
 }
 
 AdminManager am = new AdminManager();
 if(am.JudgeAdminID(this.ID)) {
 JOptionPane.showMessageDialog(null, "账号已存在", "账号已存在", JOptionPane.ERROR_MESSAGE);
 return false;
 }
 //符合规则，弹出注册成功的窗口，并将账号添加数据库
 JOptionPane.showMessageDialog(null, "注册成功");
 addAdmin();
 return true;
 }
 
 //向数据库添加Admin账户
 void addAdmin() throws SQLException {
 String sql="insert into admin (id, name, password) values (?,?,?)";
 PreparedStatement ps = getPreparedStatement(sql);
 ps.setString(1, this.ID);
 ps.setString(2, this.name);
 ps.setString(3, this.password);
 ps.executeUpdate();
 ps.close();
 }
}

注册成功后就可以点击登录了

主页面：

登录成功后来到主页面

主页面下面的表格，我先把数据库中的房间数据读出，然后转换成ArrayList，最后放到表格中

class MyDefaultTableModel extends DefaultTableModel {

 public MyDefaultTableModel(Object[][] data, Object[] columnNames) {
 super(data, columnNames);
 }

 public boolean isCellEditable(int rowIndex, int columnIndex) {

 return false;
 }
 }

 private DefaultTableModel toDefaultTableModel(ArrayList<Room> al) {
 int row = al.size();
 Object [][] o = new Object[row+1][5];
 Room room = null;
 o[0][0]="房间号";
 o[0][1]="级别";
 o[0][2]="价格";
 o[0][3]="状态";
 o[0][4]="备注";
 for(int i=0; i<row; i++) {
 room = al.get(i);
 for(int j=0; j<5; j++) {
 if(j==0) {
 o[i+1][j] = Integer.valueOf(room.getID());
 } else if(j==1) {
 o[i+1][j] = room.getGrade();
 } else if(j==2) {
 o[i+1][j] = Float.valueOf(room.getPrice());
 } else if(j==3) {
 o[i+1][j] = room.getState()==1 ? "有人" : "空";
 } else if(j==4) {
 o[i+1][j] = room.getRemarks();
 }

 }
 }
 String col[]= {"房间号", "级别", "价格", "状态", "备注"};
 return new MyDefaultTableModel(o, col);
 }

 private ArrayList<Room> toArrayList(ResultSet rs) {
 try {
 ArrayList<Room> al = new ArrayList<>();
 Room room = new Room();
 while (rs.next()) {
 room = new Room();
 room.setID(rs.getInt("id"));
 room.setGrade(rs.getString("grade"));
 room.setPrice(rs.getFloat("price"));
 room.setState(rs.getInt("state"));
 room.setRemarks(rs.getString("remarks"));
 al.add(room);
 }
 rs.close();
 return al;
 } catch(SQLException ex) {
 return null;
 }
 }

系统管理包含两个选项：刷新和退出系统，点击刷新将重新加载表格，点击退出系统则整个程序结束

基本管理有两个选项：住宿登记和退房结账，住宿登记是登记顾客的信息和选择房间

退房结账，输入房间号之后会进行退房。

点击住宿登记会跳出窗口

房间管理有两个选项：增加房间和查询房间

点击添加房间，输入房间号，价格，级别，点击添加，添加成功；点击取消，返回主页面

查询房间，输入房间号，将会显示房间的所有信息

JDBC连接数据库：

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
 *
 * @author Administrator
 */
public class DBConnecter {
 /*
 连接数据库
 */
 private String driver = "com.mysql.cj.jdbc.Driver";
 private String url = "jdbc:mysql://localhost:3306/hotelsql? serverTimezone=UTC&characterEncoding=utf-8";
 private String user = "root";
 private String password = "12481632";
 
 public Connection getConnection() throws SQLException {
 try {
 Class.forName(driver);
 } catch (java.lang.ClassNotFoundException cnfe) {
 cnfe.printStackTrace();
 System.out.println("驱动失败");
 }
 Connection conn = null;
 //conn=DriverManager.getConnection(URL, "root", "12481632");
 try {
 conn = DriverManager.getConnection(url, user, password);
 
 }catch(SQLException ex) {
 System.out.println("数据库登录失败!");
 } 
 return conn;
 }
 /*
 
 */
}