基于Java的“教材征订信息管理系统”设计与实现

// User实体类

public class User {

private Long id;

private String username;

private String password;

private String role;

// getters and setters

}

// 教材实体类

public class Book {

private Long id;

private String title;

private String author;

private String publisher;

private Double price;

private Integer stock;

// getters and setters

}

// 订单实体类

public class Order {

private Long id;

private Long userId;

private Long bookId;

private Integer quantity;

private String status;

// getters and setters

}

// 用户控制器

@RestController

@RequestMapping("/api/users")

public class UserController {

@Autowired

private UserService userService;

@PostMapping("/login")

public ResponseEntity login(@RequestBody LoginRequest request) {

String token = userService.login(request.getUsername(), request.getPassword());

return ResponseEntity.ok(token);

}

}

// 教材控制器

@RestController

@RequestMapping("/api/books")

public class BookController {

@Autowired

private BookService bookService;

@GetMapping("/")

public ResponseEntity> getAllBooks() {

return ResponseEntity.ok(bookService.findAll());

}

@PostMapping("/")

public ResponseEntity createBook(@RequestBody Book book) {

return ResponseEntity.ok(bookService.save(book));

}

}

// 订单控制器

@RestController

@RequestMapping("/api/orders")

public class OrderController {

@Autowired

private OrderService orderService;

@PostMapping("/")

public ResponseEntity createOrder(@RequestBody Order order) {

return ResponseEntity.ok(orderService.save(order));

}

@GetMapping("/{id}")

public ResponseEntity getOrderById(@PathVariable Long id) {

return ResponseEntity.ok(orderService.findById(id));

}

}