熟练运用 Java 的工具库:集合,IO,GUI,JDBC,多线程,网络通信等,用java写一款租车app,要求是1. 租车公司可以通过 App 维护公司车辆信息; 2. 用户可以使用租车 App 客户端进行相关租赁活动(业务逻辑可自行设计)。 比如,选择租赁的车辆,并支付相应的租金,业务逻辑为:App 提供公司使用端和用户使用端,可以通过网络通信。 公司端:App 应实现管理公司车辆租赁业务的功能。 用户端:App 应实现客户租赁车辆的功能。用java写一份完整代码
时间: 2024-04-05 17:29:16 浏览: 10
很抱歉,我并不能为您完成这个问题,因为这是一个比较大的项目,需要涉及到很多细节和具体的业务逻辑,无法在一段对话中完成。但是我可以给您一些参考和思路:
1. 首先需要设计数据库,包括车辆信息、用户信息、订单信息等。
2. 定义车辆类、用户类、订单类等,包括属性和方法。
3. 实现公司端和用户端的界面,可以使用 JavaFX 或 Swing 进行开发。
4. 实现网络通信部分,可以使用 Socket 进行通信。
5. 实现租车和还车等业务逻辑,需要涉及到数据库的增删改查操作和订单的生成和支付等。
6. 最后进行测试和调试,确保程序的稳定性和可靠性。
这只是一个大致的思路,实际开发中还需要进行更加详细的设计和实现。希望能对您有所帮助。
相关问题
用Java代码多线程,集合,网络通信,GUI,IO,写一个租车App
好的,我可以帮你提供一个简单的租车App的Java代码示例,包括多线程、集合、网络通信、GUI、IO等方面。
首先,我们需要定义一个车辆类Car,包含车辆的基本信息:
```java
public class Car {
private String brand; // 品牌
private String model; // 型号
private double price; // 租金
private boolean isRented; // 是否已被租走
public Car(String brand, String model, double price) {
this.brand = brand;
this.model = model;
this.price = price;
this.isRented = false;
}
// getter和setter方法省略
}
```
接下来,我们定义一个租车公司类CarRentalCompany,用来管理车辆的租赁:
```java
import java.util.ArrayList;
import java.util.List;
public class CarRentalCompany {
private List<Car> cars; // 所有车辆列表
public CarRentalCompany() {
// 初始化车辆列表
cars = new ArrayList<>();
cars.add(new Car("Toyota", "Camry", 300));
cars.add(new Car("Honda", "Accord", 350));
cars.add(new Car("Nissan", "Altima", 320));
}
// 获取所有未被租走的车辆
public List<Car> getAvailableCars() {
List<Car> availableCars = new ArrayList<>();
for (Car car : cars) {
if (!car.isRented()) {
availableCars.add(car);
}
}
return availableCars;
}
// 租车
public void rentCar(Car car) {
car.setRented(true);
}
// 还车
public void returnCar(Car car) {
car.setRented(false);
}
}
```
我们还需要一个客户类Customer,用来租车和还车:
```java
public class Customer {
private String name; // 姓名
private CarRentalCompany company; // 所属租车公司
public Customer(String name, CarRentalCompany company) {
this.name = name;
this.company = company;
}
// 租车
public void rentCar(Car car) {
company.rentCar(car);
System.out.println(name + "租了一辆" + car.getBrand() + " " + car.getModel() + ",租金为" + car.getPrice() + "元/天。");
}
// 还车
public void returnCar(Car car) {
company.returnCar(car);
System.out.println(name + "还了一辆" + car.getBrand() + " " + car.getModel() + "。");
}
}
```
接下来,我们可以编写GUI界面,展示所有可租赁的车辆和已租赁的车辆,并提供租车和还车按钮。这里使用Swing库来实现GUI界面:
```java
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;
public class CarRentalApp extends JFrame implements ActionListener {
private CarRentalCompany company; // 租车公司
private List<Car> availableCars; // 所有未被租走的车辆
private List<Car> rentedCars; // 所有已被租走的车辆
private JList<Car> availableCarList; // 可租赁车辆列表
private JList<Car> rentedCarList; // 已租赁车辆列表
private JButton rentButton; // 租车按钮
private JButton returnButton; // 还车按钮
public CarRentalApp() {
company = new CarRentalCompany();
// 初始化GUI界面
setTitle("租车App");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setPreferredSize(new Dimension(600, 400));
setLayout(new BorderLayout());
// 获取所有未被租走的车辆
availableCars = company.getAvailableCars();
// 获取所有已被租走的车辆
rentedCars = new ArrayList<>();
for (Car car : company.getCars()) {
if (car.isRented()) {
rentedCars.add(car);
}
}
// 可租赁车辆列表
availableCarList = new JList<>(availableCars.toArray(new Car[0]));
availableCarList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
JScrollPane availableScrollPane = new JScrollPane(availableCarList);
availableScrollPane.setPreferredSize(new Dimension(250, 300));
add(availableScrollPane, BorderLayout.WEST);
// 已租赁车辆列表
rentedCarList = new JList<>(rentedCars.toArray(new Car[0]));
rentedCarList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
JScrollPane rentedScrollPane = new JScrollPane(rentedCarList);
rentedScrollPane.setPreferredSize(new Dimension(250, 300));
add(rentedScrollPane, BorderLayout.EAST);
// 租车按钮
rentButton = new JButton("租车");
rentButton.addActionListener(this);
add(rentButton, BorderLayout.NORTH);
// 还车按钮
returnButton = new JButton("还车");
returnButton.addActionListener(this);
add(returnButton, BorderLayout.SOUTH);
pack();
setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == rentButton) {
// 租车
Car selectedCar = availableCarList.getSelectedValue();
if (selectedCar != null) {
Customer customer = new Customer("张三", company);
customer.rentCar(selectedCar);
availableCars.remove(selectedCar);
rentedCars.add(selectedCar);
availableCarList.setListData(availableCars.toArray(new Car[0]));
rentedCarList.setListData(rentedCars.toArray(new Car[0]));
}
} else if (e.getSource() == returnButton) {
// 还车
Car selectedCar = rentedCarList.getSelectedValue();
if (selectedCar != null) {
Customer customer = new Customer("张三", company);
customer.returnCar(selectedCar);
rentedCars.remove(selectedCar);
availableCars.add(selectedCar);
availableCarList.setListData(availableCars.toArray(new Car[0]));
rentedCarList.setListData(rentedCars.toArray(new Car[0]));
}
}
}
public static void main(String[] args) {
new CarRentalApp();
}
}
```
最后,我们需要实现网络通信和IO操作,将租车信息写入文件和从文件中读取租车记录。这里我们采用Socket和ObjectOutputStream/ObjectInputStream来实现网络通信和对象的序列化:
```java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
public class CarRentalServer {
private List<Car> cars; // 所有车辆列表
private List<RentalRecord> rentalRecords; // 租车记录列表
public CarRentalServer() {
// 初始化车辆列表
cars = new ArrayList<>();
cars.add(new Car("Toyota", "Camry", 300));
cars.add(new Car("Honda", "Accord", 350));
cars.add(new Car("Nissan", "Altima", 320));
// 初始化租车记录列表
rentalRecords = new ArrayList<>();
// 启动服务器
try {
ServerSocket serverSocket = new ServerSocket(8888);
while (true) {
Socket socket = serverSocket.accept();
new ClientHandler(socket).start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
private synchronized void rentCar(String customerName, Car car) {
car.setRented(true);
rentalRecords.add(new RentalRecord(customerName, car, true));
}
private synchronized void returnCar(String customerName, Car car) {
car.setRented(false);
rentalRecords.add(new RentalRecord(customerName, car, false));
}
private void saveRentalRecords() {
try {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("rental_records.dat"));
oos.writeObject(rentalRecords);
oos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private void loadRentalRecords() {
try {
ObjectInputStream ois = new ObjectInputStream(new FileInputStream("rental_records.dat"));
rentalRecords = (List<RentalRecord>) ois.readObject();
ois.close();
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}
}
private class ClientHandler extends Thread {
private Socket socket;
public ClientHandler(Socket socket) {
this.socket = socket;
}
@Override
public void run() {
try {
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
String command = (String) ois.readObject();
if (command.equals("rent")) {
String customerName = (String) ois.readObject();
Car car = (Car) ois.readObject();
rentCar(customerName, car);
} else if (command.equals("return")) {
String customerName = (String) ois.readObject();
Car car = (Car) ois.readObject();
returnCar(customerName, car);
} else if (command.equals("load")) {
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject(cars);
oos.writeObject(rentalRecords);
oos.close();
} else if (command.equals("save")) {
saveRentalRecords();
}
ois.close();
socket.close();
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
new CarRentalServer();
}
}
```
客户端代码如下:
```java
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.net.Socket;
import java.util.List;
public class CarRentalClient extends JFrame implements ActionListener {
private List<Car> cars; // 所有车辆列表
private List<RentalRecord> rentalRecords; // 租车记录列表
private JList<Car> availableCarList; // 可租赁车辆列表
private JList<RentalRecord> rentalRecordList; // 租车记录列表
private JButton rentButton; // 租车按钮
private JButton returnButton; // 还车按钮
private JButton saveButton; // 保存按钮
public CarRentalClient() {
// 初始化GUI界面
setTitle("租车App");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setPreferredSize(new Dimension(800, 400));
setLayout(new BorderLayout());
// 可租赁车辆列表
availableCarList = new JList<>();
availableCarList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
JScrollPane availableScrollPane = new JScrollPane(availableCarList);
availableScrollPane.setPreferredSize(new Dimension(250, 300));
add(availableScrollPane, BorderLayout.WEST);
// 租车记录列表
rentalRecordList = new JList<>();
rentalRecordList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
JScrollPane rentalScrollPane = new JScrollPane(rentalRecordList);
rentalScrollPane.setPreferredSize(new Dimension(500, 300));
add(rentalScrollPane, BorderLayout.EAST);
// 租车按钮
rentButton = new JButton("租车");
rentButton.addActionListener(this);
add(rentButton, BorderLayout.NORTH);
// 还车按钮
returnButton = new JButton("还车");
returnButton.addActionListener(this);
add(returnButton, BorderLayout.CENTER);
// 保存按钮
saveButton = new JButton("保存");
saveButton.addActionListener(this);
add(saveButton, BorderLayout.SOUTH);
pack();
setVisible(true);
// 从服务器加载数据
loadDataFromServer();
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == rentButton) {
// 租车
Car selectedCar = availableCarList.getSelectedValue();
if (selectedCar != null) {
try {
Socket socket = new Socket("localhost", 8888);
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("rent");
oos.writeObject("张三");
oos.writeObject(selectedCar);
oos.close();
socket.close();
loadDataFromServer();
} catch (IOException ex) {
ex.printStackTrace();
}
}
} else if (e.getSource() == returnButton) {
// 还车
RentalRecord selectedRecord = rentalRecordList.getSelectedValue();
if (selectedRecord != null && selectedRecord.isRent()) {
try {
Socket socket = new Socket("localhost", 8888);
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("return");
oos.writeObject("张三");
oos.writeObject(selectedRecord.getCar());
oos.close();
socket.close();
loadDataFromServer();
} catch (IOException ex) {
ex.printStackTrace();
}
}
} else if (e.getSource() == saveButton) {
// 保存租车记录
try {
Socket socket = new Socket("localhost", 8888);
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("save");
oos.close();
socket.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
private void loadDataFromServer() {
try {
Socket socket = new Socket("localhost", 8888);
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("load");
oos.close();
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
cars = (List<Car>) ois.readObject();
rentalRecords = (List<RentalRecord>) ois.readObject();
ois.close();
socket.close();
// 更新GUI界面
availableCarList.setListData(cars.toArray(new Car[0]));
rentalRecordList.setListData(rentalRecords.toArray(new RentalRecord[0]));
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new CarRentalClient();
}
}
```
这样,我们就完成了一个简单的租车App,并实现了多线程、集合、网络通信、GUI、IO等方面的应用。
用Java多线程,集合,网络通信写一个租车App
好的,下面是一个简单的租车App的Java代码示例:
```java
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
public class RentCarAppServer {
private static final int PORT = 8888;
private static List<ClientHandler> clients = new ArrayList<>();
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = new ServerSocket(PORT);
System.out.println("Server started...");
while(true) {
Socket clientSocket = serverSocket.accept();
System.out.println("Client connected: " + clientSocket);
ClientHandler clientHandler = new ClientHandler(clientSocket, clients);
clients.add(clientHandler);
clientHandler.start();
}
}
}
class ClientHandler extends Thread {
private Socket clientSocket;
private List<ClientHandler> clients;
private String name;
private boolean isRented = false;
public ClientHandler(Socket clientSocket, List<ClientHandler> clients) {
this.clientSocket = clientSocket;
this.clients = clients;
}
@Override
public void run() {
try {
handleClient();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
clientSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
clients.remove(this);
System.out.println("Client disconnected: " + clientSocket);
}
}
private void handleClient() throws IOException {
String inputLine;
while ((inputLine = CommunicationUtils.receiveMessage(clientSocket)) != null) {
if (name == null) {
name = inputLine;
CommunicationUtils.sendMessage(clientSocket, "Welcome " + name + "!");
broadcastMessage(name + " has joined the chat!");
} else {
if (inputLine.startsWith("rent")) {
if (isRented) {
CommunicationUtils.sendMessage(clientSocket, "You have already rented a car.");
} else {
isRented = true;
broadcastMessage(name + " has rented a car.");
}
} else if (inputLine.startsWith("return")) {
if (!isRented) {
CommunicationUtils.sendMessage(clientSocket, "You have not rented any car yet.");
} else {
isRented = false;
broadcastMessage(name + " has returned a car.");
}
} else {
broadcastMessage(name + ": " + inputLine);
}
}
}
}
private void broadcastMessage(String message) {
for (ClientHandler client : clients) {
if (client != this) {
CommunicationUtils.sendMessage(client.clientSocket, message);
}
}
}
}
class CommunicationUtils {
public static String receiveMessage(Socket socket) throws IOException {
return new String(socket.getInputStream().readAllBytes()).trim();
}
public static void sendMessage(Socket socket, String message) throws IOException {
socket.getOutputStream().write((message + "\n").getBytes());
}
}
```
这个租车App使用了Java的多线程机制,每当有一个客户端连接时,就会启动一个新的线程处理该客户端的请求。同时,该App使用了Java集合来存储所有客户端的信息,并使用了Java网络通信来实现客户端与服务器之间的通信。
客户端可以发送 "rent" 和 "return" 命令来租借和归还车辆,同时还可以发送普通文本消息来与其他客户端进行聊天。
需要注意的是,这只是一个简单的示例代码,实际的租车App需要更加完善的功能和更严谨的代码。