[JavaScript知识库]谷粒商城项目（学习笔记十一）

第九章：商品详情

一、环境搭建

1）、nginx配置

已经配置

2）、gateway配置

为gulimall-product添加商品详情页在地址

        - id: gulimall_host_route
          uri: lb://gulimall-product
          predicates:
            - Host=gulimall.com,item.gulimall.com

3）、静态资源的配置

修改href?

修改src

?二、业务实现

1）、封装实体

SkuItemVo，SkuItemSaleAttrVo，SpuItemAttrGroupVo

@Data
public class SkuItemVo {
    //1、sku基本信息获取  pms_sku_info
    SkuInfoEntity info;

    boolean hasStock = true;

    //2、sku的图片信息  pms_sku_images
    List<SkuImagesEntity> images;

    //3、获取spu的销售属性组合。
    List<SkuItemSaleAttrVo> saleAttr;

    //4、获取spu的介绍
    SpuInfoDescEntity desp;

    //5、获取spu的规格参数信息。
    List<SpuItemAttrGroupVo> groupAttrs;

    SeckillInfoVo seckillInfo;//当前商品的秒杀优惠信息
    
}

@ToString
@Data
public class SkuItemSaleAttrVo {
    private Long attrId;
    private String attrName;
    private List<AttrValueWithSkuIdVo> attrValues;
}

@ToString
@Data
public class SpuItemAttrGroupVo {

    private String groupName;
    private List<Attr> attrs;
}

2）、ItemController控制器

@Controller
public class ItemController {

    @Autowired
    SkuInfoService skuInfoService;

    /**
     * 展示当前sku的详情
     * @param skuId
     * @return
     */
    @GetMapping("/{skuId}.html")
    public String skuItem(@PathVariable("skuId") Long skuId, Model model) throws ExecutionException, InterruptedException {

        System.out.println("准备查询"+skuId+"详情");
        SkuItemVo vo = skuInfoService.item(skuId);
        model.addAttribute("item",vo);

        return "item";
    }
}

3）、SkuInfoServiceImpl实现类

    @Resource
    SkuImagesService imagesService;

    @Resource
    SpuInfoDescService spuInfoDescService;

    @Resource
    AttrGroupService attrGroupService;

    @Resource
    SeckillFeignService seckillFeignService;

    @Resource
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Resource
    ThreadPoolExecutor executor;

    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo  = new SkuItemVo();

        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            //1、sku基本信息获取  pms_sku_info
            SkuInfoEntity info = getById(skuId);
            skuItemVo.setInfo(info);
            return info;
        }, executor);

        CompletableFuture<Void> saleAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //3、获取spu的销售属性组合。
            List<SkuItemSaleAttrVo> saleAttrVos = skuSaleAttrValueService.getSaleAttrsBySpuId(res.getSpuId());
            skuItemVo.setSaleAttr(saleAttrVos);
        }, executor);

        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync(res -> {
            //4、获取spu的介绍  pms_spu_info_desc
            SpuInfoDescEntity spuInfoDescEntity = spuInfoDescService.getById(res.getSpuId());
            skuItemVo.setDesp(spuInfoDescEntity);
        }, executor);

        CompletableFuture<Void> baseAttrFuture = infoFuture.thenAcceptAsync(res -> {
            //5、获取spu的规格参数信息。
            List<SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setGroupAttrs(attrGroupVos);
        }, executor);



        //2、sku的图片信息  pms_sku_images
        CompletableFuture<Void> imageFuture = CompletableFuture.runAsync(() -> {
            List<SkuImagesEntity> images = imagesService.getImagesBySkuId(skuId);
            skuItemVo.setImages(images);
        }, executor);

        //3、查询当前sku是否参与秒杀优惠
        CompletableFuture<Void> secKillFuture = CompletableFuture.runAsync(() -> {
            R seckillInfo = seckillFeignService.getSkuSeckillInfo(skuId);
            if (seckillInfo.getCode() == 0) {
                SeckillInfoVo seckillInfoVo = seckillInfo.getData(new TypeReference<SeckillInfoVo>() {
                });
                skuItemVo.setSeckillInfo(seckillInfoVo);
            }
        }, executor);



        //等到所有任务都完成
        CompletableFuture.allOf(saleAttrFuture,descFuture,baseAttrFuture,imageFuture,secKillFuture).get();


        return skuItemVo;
    }

三、页面的渲染

//todo前端的工作

四、异步编排优化

避坑：Parameter 'catalogId' not found. Available parameters are [arg1, arg0, param1, param2]

param参数忘记引用了

import org.apache.ibatis.annotations.Param;

@Mapper
public interface AttrGroupDao extends BaseMapper<AttrGroupEntity> {

    List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(@Param("spuId")Long spuId, @Param("catelogId")Long catelogId);
}

1）、添加配置引用

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>

2）、添加线程池配置

@ConfigurationProperties(prefix = "gulimall.thread")
@Component
@Data
public class ThreadPoolConfigProperties {
    private Integer coreSize;
    private Integer maxSize;
    private Integer keepAliveTime;
}

@Configuration
public class MyThreadConfig {

    @Bean
    public ThreadPoolExecutor threadPoolExecutor(ThreadPoolConfigProperties pool){
       return new ThreadPoolExecutor(pool.getCoreSize(),
                pool.getMaxSize(),pool.getKeepAliveTime(),
                TimeUnit.SECONDS,new LinkedBlockingDeque<>(100000),
                Executors.defaultThreadFactory(),
                new ThreadPoolExecutor.AbortPolicy());

    }
}