SpringBoot订单管理代码
时间: 2023-07-03 15:06:41 浏览: 77
以下是一个简单的Spring Boot订单管理代码示例:
1. 创建一个Order实体类
```
@Entity
@Table(name = "orders")
public class Order {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@NotNull
private String customerName;
@OneToMany(mappedBy = "order", cascade = CascadeType.ALL)
private List<OrderItem> orderItems;
// constructors, getters and setters
}
```
2. 创建一个OrderItem实体类
```
@Entity
@Table(name = "order_items")
public class OrderItem {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@NotNull
private String itemName;
@NotNull
private int quantity;
@ManyToOne
@JoinColumn(name = "order_id")
private Order order;
// constructors, getters and setters
}
```
3. 创建一个OrderRepository接口
```
@Repository
public interface OrderRepository extends JpaRepository<Order, Long> {
}
```
4. 创建一个OrderItemRepository接口
```
@Repository
public interface OrderItemRepository extends JpaRepository<OrderItem, Long> {
}
```
5. 创建一个OrderService类
```
@Service
public class OrderService {
@Autowired
private OrderRepository orderRepository;
@Autowired
private OrderItemRepository orderItemRepository;
public List<Order> getAllOrders() {
return orderRepository.findAll();
}
public Order getOrderById(Long id) {
return orderRepository.findById(id).orElse(null);
}
public Order createOrder(Order order) {
for (OrderItem orderItem : order.getOrderItems()) {
orderItem.setOrder(order);
orderItemRepository.save(orderItem);
}
return orderRepository.save(order);
}
public void deleteOrder(Long id) {
orderRepository.deleteById(id);
}
}
```
6. 创建一个OrderController类
```
@RestController
@RequestMapping("/orders")
public class OrderController {
@Autowired
private OrderService orderService;
@GetMapping("")
public List<Order> getAllOrders() {
return orderService.getAllOrders();
}
@GetMapping("/{id}")
public Order getOrderById(@PathVariable("id") Long id) {
return orderService.getOrderById(id);
}
@PostMapping("")
public Order createOrder(@RequestBody Order order) {
return orderService.createOrder(order);
}
@DeleteMapping("/{id}")
public void deleteOrder(@PathVariable("id") Long id) {
orderService.deleteOrder(id);
}
}
```
7. 启动Spring Boot应用程序并测试API endpoints。
相关推荐
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![-](https://csdnimg.cn/download_wenku/file_type_column_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)