JavaEE作业-实验三

1 实验内容

2 实验要求

3 思路

4 核心代码

5 实验结果

1 实验内容

简单的线上图书交易系统的web层

2 实验要求

①采用SpringMVC框架，采用REST风格

②要求具有如下功能：商品分类、订单、购物车、库存

③独立完成，编写实验报告

3 思路

①确保项目结构清晰，按照MVC的结构进行组织

②在pom.xml中添加SpringMVC相关依赖，以及其他可能需要的依赖，比如数据库连接池、模板引擎等：

③配置web.xml文件，配置DispatcherServlet和Spring监听器：

④在WEB-INF目录下创建相关文件，配置相关内容：

⑤在com.exp.controller包下创建控制器类，使用@RestController注解，以REST风格暴露接口

⑥创建JSP文件，用于显示前端页面。

4 核心代码

①BookController类

@RestController
@RequestMapping("/books")
public class BookController {

    @Autowired
    private BookService bookService;

    @GetMapping
    public List<Book> getAllBooks() {
        return bookService.getAllBooks();
    }

    @GetMapping("/{id}")
    public Book getBookById(@PathVariable Long id) {
        return bookService.getBookById(id);
    }

    @PostMapping
    public void addBook(@RequestBody Book book) {
        bookService.addBook(book);
    }

    @PutMapping("/{id}")
    public void updateBook(@PathVariable Long id, @RequestBody Book book) {
        book.setId(id);
        bookService.updateBook(book);
    }

    @DeleteMapping("/{id}")
    public void deleteBook(@PathVariable Long id) {
        bookService.deleteBook(id);
    }
}

②OrderController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 Long id) {
        return orderService.getOrderById(id);
    }

    @PostMapping
    public void addOrder(@RequestBody Order order) {
        orderService.addOrder(order);
    }

    @PutMapping("/{id}")
    public void updateOrder(@PathVariable Long id, @RequestBody Order order) {
        order.setId(id);
        orderService.updateOrder(order);
    }

    @DeleteMapping("/{id}")
    public void deleteOrder(@PathVariable Long id) {
        orderService.deleteOrder(id);
    }
}

③CartController类

@RestController
@RequestMapping("/cart")
public class CartController {

    @Autowired
    private CartService cartService;

    @GetMapping("/{userId}")
    public List<CartItem> getCartItemsByUserId(@PathVariable Long userId) {
        return cartService.getCartItemsByUserId(userId);
    }

    @PostMapping
    public void addCartItem(@RequestBody CartItem cartItem) {
        cartService.addCartItem(cartItem);
    }

    @PutMapping("/{id}")
    public void updateCartItem(@PathVariable Long id, @RequestBody CartItem cartItem) {
        cartItem.setId(id);
        cartService.updateCartItem(cartItem);
    }

    @DeleteMapping("/{id}")
    public void deleteCartItem(@PathVariable Long id) {
        cartService.deleteCartItem(id);
    }
}

④InventoryController类

@RestController
@RequestMapping("/inventory")
public class InventoryController {

    @Autowired
    private InventoryService inventoryService;

    @GetMapping("/{bookId}")
    public Inventory getInventoryByBookId(@PathVariable Long bookId) {
        return inventoryService.getInventoryByBookId(bookId);
    }

    @PostMapping
    public void addInventory(@RequestBody Inventory inventory) {
        inventoryService.addInventory(inventory);
    }

    @PutMapping("/{id}")
    public void updateInventory(@PathVariable Long id, @RequestBody Inventory inventory) {
        inventory.setId(id);
        inventoryService.updateInventory(inventory);
    }

    @DeleteMapping("/{id}")
    public void deleteInventory(@PathVariable Long id) {
        inventoryService.deleteInventory(id);
    }
}