发愁没项目？用Java开发一个停车场系统【附源码】

现开发一个停车系统,用户根据车位停车

---

1)车主查看现在有无车位(最多100个车位),给车主随机分配一个车位,如果该位置上有车,不能停
2)按停车时间收费,3小时以内不收费,3小时以外,每小时2元,最大20元
3)车主可以查看自己停车的车位和收费,以及停车的时长
4)查看历史停车记录

管理员:
查看现有的剩余车位
查看已停车的车位
查看停在车位上的车以及历史缴费

Client

package com.gem.client;
import java.util.Scanner;
import com.gem.entity.Admin;
import com.gem.entity.User;
import com.gem.service.impl.AdminServiceImpl;
import com.gem.service.impl.CarParkingServiceimpl;
import com.gem.service.impl.UserServiceimpl;
public class Client {
 public static void main(String[] args) {
 CarParkingServiceimpl carparkingservice = CarParkingServiceimpl.getCarparkingservice();
 UserServiceimpl userserviceimpl = UserServiceimpl.getUserserviceimpl();
 Scanner scanner = new Scanner(System.in);
 Menu1(carparkingservice, userserviceimpl, scanner);
 }
 private static void Menu1(CarParkingServiceimpl carparkingservice, UserServiceimpl userserviceimpl,
 Scanner scanner) {
 while (true) {
 System.out.println("****欢迎进入停车系统****");
 System.out.println("***1.请输入您的车牌***");
 System.out.println("***2.管理员");
 System.out.println("***3.退出****");
 int choice = Integer.parseInt(scanner.nextLine().trim());
 switch (choice) {
 case 1:
 System.out.println("请输入您的车牌");
 String chepai = scanner.nextLine().trim();
 User a = userserviceimpl.login(new User(chepai));
 if (a != null) {
 System.out.println("车牌登记成功");
 Menu2(carparkingservice, userserviceimpl, scanner, a);
 } else {
 System.out.println("车牌登记失败");
 }
 break;
 case 2:
 Menu_Manger(carparkingservice, userserviceimpl);
 default:
 break;
 }
 }
 }
 //管理员的登录注册
 private static void Menu_Manger(CarParkingServiceimpl carparkingservice, UserServiceimpl userserviceimpl) {
 AdminServiceImpl adminserviceimpl = AdminServiceImpl.getAdminSeriver();
 while (true) {
 System.out.println("1.管理员登录");
 System.out.println("2.管理员注册");
 System.out.println("返回上一级");
 Scanner scanner = new Scanner(System.in);
 int chose = Integer.parseInt(scanner.nextLine().trim());
 switch (chose) {
 case 1:
 System.out.println("请输入管理员账号");
 String name = scanner.nextLine().trim();
 System.out.println("请输入管理员密码");
 String password = scanner.nextLine().trim();
 if (adminserviceimpl.login(name, password) != null) {
 System.out.println("登录成功");
 Menu_Manger2(carparkingservice, userserviceimpl, adminserviceimpl);//进行管理员操作
 } else {
 System.out.println("登录失败");
 return;
 }
 break;
 case 2:
 System.out.println("请输入注册账号");
 name = scanner.nextLine().trim();
 System.out.println("请输入注册密码");
 password = scanner.nextLine().trim();
 adminserviceimpl.register(new Admin(name, password));
 break;
 case 3:
 return;
 default:
 return;
 }
 }
 }
 //管理员操作
 private static void Menu_Manger2(CarParkingServiceimpl carparkingservice, UserServiceimpl userserviceimpl,
 AdminServiceImpl adminserviceimpl) {
 while (true) {
 System.out.println("***欢迎进入管理员操作***");
 System.out.println("1.查看现有停车位");
 System.out.println("2.查看停车位上的车以及缴费");
 System.out.println("3.返回上一级");
 Scanner scanner = new Scanner(System.in);
 int chose = Integer.parseInt(scanner.nextLine().trim());
 switch (chose) {
 case 1:
 carparkingservice.showlist();//显示目前所有的空的车位
 break;
 case 2:
 carparkingservice.show();
 break;
 case 3:
 return;
 default:
 System.out.println("输入错误");
 break;
 }
 }
 }
 private static void Menu2(CarParkingServiceimpl carparkingservice, UserServiceimpl userserviceimpl, Scanner scanner,
 User a) {
 while (true) {
 System.out.println("欢迎车牌为:" + a.getCarid() + "车主" + "请选择您要的服务");
 System.out.println("1.停车");
 System.out.println("2.离开并缴费");
 System.out.println("3.查看停车车位");
 System.out.println("4.停车时长");
 System.out.println("0.返回上一级");
 int chose = Integer.parseInt(scanner.nextLine().trim());
 switch (chose) {
 case 1:
 if (carparkingservice.chack(a.getCarid())) {
 break;
 }
 while (true) {
 int random = (int) (Math.random() * 10); //随机一个车位
 if (carparkingservice.parkcar(random, a.getCarid())) {
 System.out.println("停车成功,停车位置为:" + random);
 break;
 } else {
 System.out.println("当前车位有车");
 }
 }
 break;
 case 2:
 if (carparkingservice.leavecar(a.getCarid())) {
 System.out.println("请缴费");
 } else {
 System.out.println("该车未停");
 }
 break;
 case 3:
 carparkingservice.showlist();//显示目前所有的空的车位
 break;
 case 4:
 carparkingservice.showcartime(a.getCarid());//显示停车时长
 break;
 case 0:
 return;
 default:
 System.out.println("输入错误");
 break;
 }
 }
 }
}

Admin

package com.gem.entity;
import java.util.ArrayList;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@AllArgsConstructor
@NoArgsConstructor
@Getter
@Setter
public class Admin {
 private String username;
 private String password;
 private double money;
 private ArrayList<String> list = new ArrayList<String>();
 @Override
 public String toString() {
 return username + "t" + password;
 }
 public Admin(String username, String password) {
 super();
 this.username = username;
 this.password = password;
 }
}

CarParking

package com.gem.entity;
import java.text.SimpleDateFormat;
import java.util.Date;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
@AllArgsConstructor
@NoArgsConstructor
@Getter
public class CarParking { //车位
 public static String getLishi() {
 return lishi;
 }
 public static void setLishi(String lishi) {
 CarParking.lishi = lishi;
 }
 private int id; //停车的编号
 private double money;//钱的计算
 private String state; //当前停车状态
 private Date stime;//停车时间
 private Date etime;//停车结束
 private static double allmoney;
 private static String lishi = "";
 public void setEtime() {//停车结束时间
 etime = new Date();
 SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
 String time = dateFormat.format(this.etime);
 }
 public void setStime() {//停车开始时间
 stime = new Date();
 SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
 String time1 = dateFormat.format(this.stime);
 }
 public String toString() {
 return id + "t" + money + "t" + stime;
 }
 public CarParking(int id, String state) {
 this.id = id;
 this.state = state;
 }
 public void CarPark(int id, String carid) {
 // TODO Auto-generated method stub
 this.id = id;
 this.state = carid;
 }
 public int getId() {
 return id;
 }
 public void setId(int id) {
 this.id = id;
 }
 public double getMoney() {
 return money;
 }
 public void setMoney(double money) {
 this.money = money;
 }
 public String getState() {
 return state;
 }
 public void setState(String state) {
 this.state = state;
 }
 public static double getAllmoney() {
 return allmoney;
 }
 public static void setAllmoney(double allmoney) {
 CarParking.allmoney = allmoney;
 }
}

User

package com.gem.entity;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@AllArgsConstructor
@Setter
@NoArgsConstructor
@Getter
public class User {
 private String carid; //车牌登录
 @Override
 public String toString() {
 return "车牌为" + carid;
 }
}

AdminService

package com.gem.service;
/*
 * 管理员业务接口
 * 
 * */
import com.gem.entity.Admin;
public interface AdminService {
 //登录
 Admin login(String username, String password);
 //注册
 boolean register(Admin admin);
}

AdminServiceImpl

package com.gem.service.impl;
import java.util.ArrayList;
import com.gem.entity.Admin;
import com.gem.service.AdminService;
/*
 * 管理员类实现类
 * */
public class AdminServiceImpl implements AdminService {
 private ArrayList<Admin> adminList = new ArrayList<Admin>();
 //单例饿汉模式
 private static final AdminServiceImpl adminSeriver = new AdminServiceImpl();
 public static AdminServiceImpl getAdminSeriver() {
 return adminSeriver;
 }
 private AdminServiceImpl() {
 }
 @Override //管理员登录
 public Admin login(String username, String password) {//登录
 for (Admin admin : adminList) {
 if (admin.getUsername().equals(username) && admin.getPassword().equals(password)) {
 return admin;
 }
 }
 return null;
 }
 @Override //添加管理员
 public boolean register(Admin admin) {
 boolean flag = adminList.add(admin);//添加管理员
 return flag;
 }
}

CarParkingService

package com.gem.service;
public interface CarParkingService {
 boolean parkcar(int id, String carid); //停车
 void showlist();//显示所有列表
 boolean leavecar(String carid); //离开
}

CarParkingServiceimpl

package com.gem.service.impl;
import java.util.ArrayList;
import java.util.Date;
import com.gem.entity.CarParking;
import com.gem.service.CarParkingService;
public class CarParkingServiceimpl implements CarParkingService {
 private ArrayList<CarParking> carpaking = new ArrayList<CarParking>();
 {
 for (int i = 1; i <= 10; i++) {
 carpaking.add(new CarParking(i, "当前车位为空")); // 为100个车位赋予编号 和状态
 }
 }
 private static CarParkingServiceimpl carparkingservice = new CarParkingServiceimpl();
 public static CarParkingServiceimpl getCarparkingservice() {
 return carparkingservice;
 }
 public CarParkingServiceimpl() {
 }
 //停车过来的信息,车牌,还有车位,还有更改状态,利用车位编号来改变内容
 @Override
 public boolean parkcar(int id, String carid) {
 // TODO Auto-generated method stub
 for (CarParking car : carpaking) {
 if (id == car.getId() && car.getState().equals("当前车位为空")) {
 car.setState(carid);
 car.setStime();
 return true; //停车成功
 }
 }
 return false;//当前车位有车
 }
 @Override //显示所有停车系统的信息
 public void showlist() {
 // TODO Auto-generated method stub
 for (CarParking car : carpaking) {
 System.out.println(car.getId() + "t" + car.getState());
 }
 }
 public void showcartime(String carid) {
 // TODO Auto-generated method stub
 for (CarParking car : carpaking) {
 if (car.getState().equals(carid)) {
 car.setEtime();
 Date time1 = car.getEtime();//得到当前的查询时间
 Date time2 = car.getStime();//得到开始时间
 System.out.println("车位为:" + car.getId() + "车牌为" + car.getState());
 System.out.println("停车时间为:" + car.getStime());
 System.out.println("当前时间为:" + car.getEtime());
 System.out.println("已经停车时间为:" + (time1.getTime() - time2.getTime()) / (1000 * 60 * 60));
 }
 }
 }
 public boolean leavecar(String carid) {
 // TODO Auto-generated method stub
 for (CarParking car : carpaking) {
 if (car.getState().equals(carid)) {
 car.setEtime();
 Date time1 = car.getEtime();//得到当前的查询时间
 Date time2 = car.getStime();//得到开始时间
 long t = (time1.getTime() - time2.getTime()) / (1000 * 60 * 60);
 System.out.println("车位为:" + car.getId() + "车牌为" + car.getState());
 System.out.println("停车时间为:" + car.getStime());
 System.out.println("当前时间为:" + car.getEtime());
 System.out.println("已经停车时间为:" + t);
 if (t <= 3) {
 car.setMoney(0);
 car.setAllmoney(car.getAllmoney() + car.getMoney()); //钱累加
 } else if (t > 3 && t <= 13) {
 car.setMoney(2 * (t - 3));
 car.setAllmoney(car.getAllmoney() + car.getMoney()); //钱累加
 } else if (t > 13) {
 car.setMoney(20);
 car.setAllmoney(car.getAllmoney() + car.getMoney()); //钱累加
 }
 car.setLishi(car.getLishi() + "车位:" + car.getId() + "收入金额为:" + car.getMoney() + "n");
 System.out.println("停车费为:" + car.getMoney());
 car.setState("当前车位为空");
 return true;
 }
 }
 return false;
 }
 public void show() {
 // TODO Auto-generated method stub
 for (CarParking car : carpaking) {
 System.out.println(car.getLishi());
 return;
 }
 }
 public boolean chack(String carid) {
 for (CarParking car : carpaking) {
 if (car.getState().equals(carid)) {
 System.out.println("车辆正在停使中");
 return true;
 }
 }
 return false;
 }
}

UserService

package com.gem.service;
import com.gem.entity.User;
public interface UserService {
 //用车牌登录
 User login(User a);
}

UserServiceimpl

package com.gem.service.impl;
import java.util.ArrayList;
import com.gem.entity.User;
import com.gem.service.UserService;
public class UserServiceimpl implements UserService {
 private ArrayList<User> user = new ArrayList<User>();
 private static UserServiceimpl userserviceimpl = new UserServiceimpl(); //单例
 private UserServiceimpl() {
 }
 public static UserServiceimpl getUserserviceimpl() {
 return userserviceimpl;
 }
 @Override
 public User login(User a) { //把车牌录入
 user.add(a);
 return a;
 }
}

来源：blog.csdn.net/weixin_43951778

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