高并发秒杀项目——页面静态化

最新推荐文章于 2025-05-30 03:29:33 发布

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最新推荐文章于 2025-05-30 03:29:33 发布

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分类专栏：高并发秒杀项目

本文链接：https://blog.youkuaiyun.com/Zz_xiaohuihui_Hh/article/details/106772581

本文介绍了如何实现高并发秒杀项目的页面静态化，包括商品详情、秒杀和订单详情的静态化处理。通过将动态请求转化为静态页面，减少服务器压力。同时，针对超卖问题提出了解决方案，即在减库存时添加库存检查，避免库存变为负数。

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高并发秒杀项目——页面静态化

商品详情静态化

创建GoodsDetailVo封装GoodsController的detail方法里的参数，包含秒杀状态、时间

public class GoodsDetailVo {
   
   

    private int miaoshaStatus = 0;
    private int remainSeconds = 0;
    private GoodsVo goodsVo;
    private MiaoshaUser miaoshaUser;

    public int getMiaoshaStatus() {
   
   
        return miaoshaStatus;
    }

    public void setMiaoshaStatus(int miaoshaStatus) {
   
   
        this.miaoshaStatus = miaoshaStatus;
    }

    public int getRemainSeconds() {
   
   
        return remainSeconds;
    }

    public void setRemainSeconds(int remainSeconds) {
   
   
        this.remainSeconds = remainSeconds;
    }

    public GoodsVo getGoodsVo() {
   
   
        return goodsVo;
    }

    public void setGoodsVo(GoodsVo goodsVo) {
   
   
        this.goodsVo = goodsVo;
    }

    public MiaoshaUser getMiaoshaUser() {
   
   
        return miaoshaUser;
    }

    public void setMiaoshaUser(MiaoshaUser miaoshaUser) {
   
   
        this.miaoshaUser = miaoshaUser;
    }

}

修改GoodsController里接收商品详情页的请求的detail方法的代码

@RequestMapping(value = "/to_detail/{goodsId}",produces = "text/html")
@ResponseBody
public Result<GoodsDetailVo> detail(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user, @PathVariable("goodsId") long goodsId) {
   
   

    GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
    model.addAttribute("goods", goods);
    //转化为毫秒
    long startAt = goods.getStartDate().getTime();
    long endAt = goods.getEndDate().getTime();
    long now = System.currentTimeMillis();

    int miaoshaStatus = 0;  //秒杀状态
    int remainSeconds = 0;  //距离开始秒杀还有多少秒
    if (now < startAt){
   
        //秒杀还没开始，倒计时
        miaoshaStatus = 0;
        remainSeconds = (int)((startAt - now)/1000);
    }else if (now > endAt){
   
    //秒杀结束
        miaoshaStatus = 2;
        remainSeconds = -1;
    }else {
   
                    //秒杀中
        miaoshaStatus = 1;
        remainSeconds = 0;
    }

    GoodsDetailVo vo = new GoodsDetailVo();
    vo.setGoodsVo(goods);
    vo.setMiaoshaUser(user);
    vo.setMiaoshaStatus(miaoshaStatus);
    vo.setRemainSeconds(remainSeconds);
    return Result.success(vo