商品列表（慕课秒杀）

/**
 * 商品列表页面
 */
@RequestMapping(value = "/to_list", produces = "text/html")
@ResponseBody
public String list(HttpServletRequest request, HttpServletResponse response, Model model, User user) {

    //取缓存
    String html = redisService.get(GoodsKey.getGoodsList, "", String.class);
    //如果缓存不等于空，返回静态页面
    if (!StringUtils.isEmpty(html)) {
        return html;
    }
    //如果缓存等于空，查询数据库数据
    List<GoodsVo> goodsList = goodsService.listGoodsVo();
    model.addAttribute("user", user);
    model.addAttribute("goodsList", goodsList);

    //手动渲染
    SpringWebContext ctx = new SpringWebContext(request, response,
            request.getServletContext(), request.getLocale(), model.asMap(), applicationContext);
    html = thymeleafViewResolver.getTemplateEngine().process("goods_list", ctx);

    if (!StringUtils.isEmpty(html)) {
        redisService.set(GoodsKey.getGoodsList, "", html);
    }
    //结果输出
    return html;
}

 

 

查看商品详情直接用前端页面。

判断秒杀活动是否结束：

if (now < startTime) {//秒杀还没开始，倒计时
    seckillStatus = 0;
    remainSeconds = (int) ((startTime - now) / 1000);
} else if (now > endTime) {//秒杀已经结束
    seckillStatus = 2;
    remainSeconds = -1;
} else {//秒杀进行中
    seckillStatus = 1;
    remainSeconds = 0;
}