宠物管理系统 商品管理页面 商品评价管理、商品收藏管理、商品订单管理技术实现 代码示例

以下是一个基于Java Spring框架的宠物管理系统商品管理页面商品评价管理、商品收藏管理、商品订单管理的代码示例：

商品评价管理：

@Controller
@RequestMapping("/comment")
public class CommentController {
    @Autowired
    private CommentService commentService;

    @GetMapping("/{id}")
    public String getComment(@PathVariable("id") Long id, Model model) {
        List<Comment> comments = commentService.getCommentsByProductId(id);
        model.addAttribute("comments", comments);
        return "comment";
    }

    @PostMapping("/")
    public String addComment(@RequestParam("productId") Long productId,
                             @RequestParam("content") String content,
                             @RequestParam("userId") Long userId) {
        Comment comment = new Comment();
        comment.setProductId(productId);
        comment.setUserId(userId);
        comment.setContent(content);
        commentService.addComment(comment);
        return "redirect:/comment/" + productId;
    }
}

商品收藏管理：

@Controller
@RequestMapping("/favorite")
public class FavoriteController {
    @Autowired
    private FavoriteService favoriteService;

    @GetMapping("/{userId}")
    public String getFavorites(@PathVariable("userId") Long userId, Model model) {
        List<Favorite> favorites = favoriteService.getFavoritesByUserId(userId);
        model.addAttribute("favorites", favorites);
        return "favorite";
    }

    @PostMapping("/")
    public String addFavorite(@RequestParam("productId") Long productId,
                              @RequestParam("userId") Long userId) {
        Favorite favorite = new Favorite();
        favorite.setProductId(productId);
        favorite.setUserId(userId);
        favoriteService.addFavorite(favorite);
        return "redirect:/favorite/" + userId;
    }

    @DeleteMapping("/{id}")
    public String deleteFavorite(@PathVariable("id") Long id,
                                 @RequestParam("userId") Long userId) {
        favoriteService.deleteFavoriteById(id);
        return "redirect:/favorite/" + userId;
    }
}

商品订单管理：

@Controller
@RequestMapping("/order")
public class OrderController {
    @Autowired
    private OrderService orderService;

    @GetMapping("/{userId}")
    public String getOrders(@PathVariable("userId") Long userId, Model model) {
        List<Order> orders = orderService.getOrdersByUserId(userId);
        model.addAttribute("orders", orders);
        return "order";
    }

    @PostMapping("/")
    public String addOrder(@RequestParam("productId") Long productId,
                           @RequestParam("userId") Long userId) {
        Order order = new Order();
        order.setProductId(productId);
        order.setUserId(userId);
        orderService.addOrder(order);
        return "redirect:/order/" + userId;
    }

    @DeleteMapping("/{id}")
    public String deleteOrder(@PathVariable("id") Long id,
                              @RequestParam("userId") Long userId) {
        orderService.deleteOrderById(id);
        return "redirect:/order/" + userId;
    }
}