Java如何实现网上花店商城

商城商品查询:
 
@Controller
public class GoodsController {
 
    @Resource
    private NewBeeMallGoodsService newBeeMallGoodsService;
    @Resource
    private NewBeeMallCategoryService newBeeMallCategoryService;
 
    @GetMapping({"/search", "/search.html"})
    public String searchPage(@RequestParam Map<String, Object> params, HttpServletRequest request) {
        if (StringUtils.isEmpty(params.get("page"))) {
            params.put("page", 1);
        }
        params.put("limit", Constants.GOODS_SEARCH_PAGE_LIMIT);
        //封装分类数据
        if (params.containsKey("goodsCategoryId") && !StringUtils.isEmpty(params.get("goodsCategoryId") + "")) {
            Long categoryId = Long.valueOf(params.get("goodsCategoryId") + "");
            SearchPageCategoryVO searchPageCategoryVO = newBeeMallCategoryService.getCategoriesForSearch(categoryId);
            if (searchPageCategoryVO != null) {
                request.setAttribute("goodsCategoryId", categoryId);
                request.setAttribute("searchPageCategoryVO", searchPageCategoryVO);
            }
        }
        //封装参数供前端回显
        if (params.containsKey("orderBy") && !StringUtils.isEmpty(params.get("orderBy") + "")) {
            request.setAttribute("orderBy", params.get("orderBy") + "");
        }
        String keyword = "";
        //对keyword做过滤 去掉空格
        if (params.containsKey("keyword") && !StringUtils.isEmpty((params.get("keyword") + "").trim())) {
            keyword = params.get("keyword") + "";
        }
        request.setAttribute("keyword", keyword);
        params.put("keyword", keyword);
        //封装商品数据
        PageQueryUtil pageUtil = new PageQueryUtil(params);
        request.setAttribute("pageResult", newBeeMallGoodsService.searchNewBeeMallGoods(pageUtil));
        return "mall/search";
    }
 
    @GetMapping("/goods/detail/{goodsId}")
    public String detailPage(@PathVariable("goodsId") Long goodsId, HttpServletRequest request) {
        if (goodsId < 1) {
            return "error/error_5xx";
        }
        NewBeeMallGoods goods = newBeeMallGoodsService.getNewBeeMallGoodsById(goodsId);
        if (goods == null) {
            return "error/error_404";
        }
        NewBeeMallGoodsDetailVO goodsDetailVO = new NewBeeMallGoodsDetailVO();
        BeanUtil.copyProperties(goods, goodsDetailVO);
        goodsDetailVO.setGoodsCarouselList(goods.getGoodsCarousel().split(","));
        request.setAttribute("goodsDetail", goodsDetailVO);
        return "mall/detail";
    }
 
}

验证码生成:
 
@Component
public class KaptchaConfig {
    @Bean
    public DefaultKaptcha getDefaultKaptcha(){
        com.google.code.kaptcha.impl.DefaultKaptcha defaultKaptcha = new com.google.code.kaptcha.impl.DefaultKaptcha();
        Properties properties = new Properties();
        properties.put("kaptcha.border", "no");
        properties.put("kaptcha.textproducer.font.color", "black");
        properties.put("kaptcha.image.width", "150");
        properties.put("kaptcha.image.height", "40");
        properties.put("kaptcha.textproducer.font.size", "30");
        properties.put("kaptcha.session.key", "verifyCode");
        properties.put("kaptcha.textproducer.char.space", "5");
        Config config = new Config(properties);
        defaultKaptcha.setConfig(config);
 
        return defaultKaptcha;
    }
}