基于SSM的零食商城系统

用户：
登录注册、查看或者分类查看宠物
查看宠物详情及评论
评论、收藏
选择宠物加入购物车，下单
个人订单查看
地址维护
管理员：
登录、用户管理、分类管理、宠物管理、订单管理、快递管理、评价管理、修改密码

  /**
    * @Description: 商品详情
    * @Param: [goodsid, model, session]
    * @return: java.lang.String
    * @Author: Mr.Wang
    * @Date: 2021/3/14
    */
    @RequestMapping(value = "/detail",method = RequestMethod.GET)
    public String detailGoods(Integer goodsid, Model model, HttpSession session) {
        if(goodsid == null) {
            return "redirect:/main";
        }
        User user = (User) session.getAttribute("user");
        //要传回的数据存在HashMap中
        Map<String,Object> goodsInfo = new HashMap<String,Object>();
        //查询商品的基本信息
        Goods goods = goodsService.selectById(goodsid);
        if (user == null) {
            goods.setFav(false);
        } else {
            Favorite favorite = goodsService.selectFavByKey(new FavoriteKey(user.getUserid(), goodsid));
            if (favorite == null) {
                goods.setFav(false);
            } else {
                goods.setFav(true);
            }
        }
        //查询商品类别
        Category category = cateService.selectById(goods.getCategory());
        //商品图片
        List<ImagePath> imagePath = goodsService.findImagePath(goodsid);
        //商品评论
        //返回数据
        goodsInfo.put("goods", goods);
        goodsInfo.put("cate", category);
        goodsInfo.put("image", imagePath);
        model.addAttribute("goodsInfo",goodsInfo);
        //评论信息
        CommentExample commentExample=new CommentExample();
        commentExample.or().andGoodsidEqualTo(goods.getGoodsid());
        List<Comment> commentList=commentService.selectByExample(commentExample);
        for (Integer i=0;i<commentList.size();i++)
        {
            Comment comment=commentList.get(i);
            User commentUser=userService.selectByPrimaryKey(comment.getUserid());
            comment.setUserName(commentUser.getUsername());
            commentList.set(i,comment);
        }
        CategoryExample categoryExample = new CategoryExample();
        categoryExample.setOrderByClause("cateId");
        List<Category> categories = cateService.selectByExample(categoryExample);
        model.addAttribute("categorys", categories);
        model.addAttribute("commentList",commentList);
        return "detail";
    }
    /**
    * @Description: 搜索
    * @Param: [pn, keyword, model, session]
    * @return: java.lang.String
    * @Author: Mr.Wang
    * @Date: 2021/3/14
    */
    @RequestMapping(value = "/search", method = RequestMethod.GET)
    public String searchGoods(@RequestParam(value = "page",defaultValue = "1") Integer pn, String keyword, Model model, HttpSession session) {
        User user = (User) session.getAttribute("user");
        //一页显示几个数据
        PageHelper.startPage(pn, 16);
        //查询数据
        GoodsExample goodsExample = new GoodsExample();
        goodsExample.or().andGoodsnameLike("%" + keyword + "%");
        List<Goods> goodsList = goodsService.selectByExample(goodsExample);
        //获取图片地址
        for (int i = 0; i < goodsList.size(); i++) {
            Goods goods = goodsList.get(i);
            List<ImagePath> imagePathList = goodsService.findImagePath(goods.getGoodsid());
            goods.setImagePaths(imagePathList);
            //判断是否收藏
            if (user == null) {
                goods.setFav(false);
            } else {
                Favorite favorite = goodsService.selectFavByKey(new FavoriteKey(user.getUserid(), goods.getGoodsid()));
                if (favorite == null) {
                    goods.setFav(false);
                } else {
                    goods.setFav(true);
                }
            }
            goodsList.set(i, goods);
        }
        CategoryExample categoryExample = new CategoryExample();
        categoryExample.setOrderByClause("cateId");
        List<Category> categories = cateService.selectByExample(categoryExample);
        //显示几个页号
        PageInfo page = new PageInfo(goodsList,5);
        model.addAttribute("pageInfo", page);
        model.addAttribute("keyword", keyword);
        model.addAttribute("categorys", categories);
        return "search";
    }
    /**
    * @Description: 收藏
    * @Param: [goodsid, session]
    * @return: com.zhang.ssmschoolshop.util.Msg
    * @Author: Mr.Wang
    * @Date: 2021/3/14
    */
    @RequestMapping("/collect")
    @ResponseBody
    public Msg collectGoods(Integer goodsid, HttpSession session) {
        //取登录用户信息,未登录重定向至登录页面
        User user = (User) session.getAttribute("user");
        if(user == null) {
            return Msg.fail("收藏失败");
        }
        //添加收藏
        Favorite favorite = new Favorite();
        favorite.setCollecttime(new Date());
        favorite.setGoodsid(goodsid);
        favorite.setUserid(user.getUserid());
        goodsService.addFavorite(favorite);
        return Msg.success("收藏成功");
    }
    /**
    * @Description: 删除收藏
    * @Param: [goodsid, session]
    * @return: com.zhang.ssmschoolshop.util.Msg
    * @Author: Mr.Wang
    * @Date: 2021/3/14
    */
    @RequestMapping("/deleteCollect")
    @ResponseBody
    public Msg deleteFavGoods(Integer goodsid, HttpSession session) {
        User user = (User) session.getAttribute("user");
        if (user == null) {
            return Msg.fail("取消收藏失败");
        }
        //删除收藏
        goodsService.deleteFavByKey(new FavoriteKey(user.getUserid(),goodsid));
        return Msg.success("取消收藏成功");
    }