• 2022谷粒商城学习笔记（十三）ElasticSearch安装和商品上架功能

    前言

    本系列博客基于B站谷粒商城，只作为本人学习总结使用。这里我会比较注重业务逻辑的编写和相关配置的流程。有问题可以评论或者联系我互相交流。原视频地址谷粒商城雷丰阳版。本人git仓库地址Draknessssw的谷粒商城

    docker安装elasticsearch和kibana

    版本要和SpringBoot的版本对应

    下载镜像文件

    docker pull elasticsearch:7.6.2 
docker pull kibana:7.6.2 

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    创建实例，配置文件和数据文件，以及写入可以被任何远程访问的配置

    mkdir -p /mydata/elasticsearch/config 
mkdir -p /mydata/elasticsearch/data 
echo "http.host: 0.0.0.0" >> /mydata/elasticsearch/config/elasticsearch.yml

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    为elasticsearch文件夹赋予权限

    chmod -R 777 /mydata/elasticsearch/ 

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    启动elasticsearch

    docker run --name elasticsearch -p 9200:9200 -p 9300:9300 \
-e "discovery.type=single-node" \
-e ES_JAVA_OPTS="-Xms64m -Xmx512m" \
-v /mydata/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /mydata/elasticsearch/data:/usr/share/elasticsearch/data \
-v /mydata/elasticsearch/plugins:/usr/share/elasticsearch/plugins \ 
-d elasticsearch:7.6.2

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    安装运行kibana

    docker run --name kibana -e ELASTICSEARCH_HOSTS=http://192.168.56.10:9200 -p 5601:5601 \ -d kibana:7.6.2

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    其中，http://192.168.56.10:9200 一定改为自己虚拟机的地址，端口默认9200就好

    商品上架

    在elasticsearch中存储要搜索的数据模型（kibana可视化页面，本地ip地址加dev_tools）

    在这里插入图片描述

    其中，库存信息的标题使用了ik分词器，图片信息，品牌名，品牌id等信息均不可检索。商品的规格参数等信息以nested类型，即嵌入属性存储。相关的细节这里不再赘述。

    PUT product
{
  "mappings": {
    "properties": {
      "skuId": {
        "type": "long"
      },
      "spuId": {
        "type": "long"
      },
      "skuTitle": {
        "type": "text",
        "analyzer": "ik_smart"
      },
      "skuPrice": {
        "type": "keyword"
      },
      "skuImg": {
        "type": "keyword",
        "index": false,
        "doc_values": false
      },
      "saleCount": {
        "type": "long"
      },
      "hosStock": {
        "type": "boolean"
      },
      "hotScore": {
        "type": "long"
      },
      "brandId": {
        "type": "long"
      },
      "catalogId": {
        "type": "long"
      },
      "brandName": {
        "type": "keyword",
        "index": false,
        "doc_values": false
      },
      "brandImg": {
        "type": "keyword",
        "index": false,
        "doc_values": false
      },
      "catalogName": {
        "type": "keyword",
        "index": false,
        "doc_values": false
      },
      "attrs": {
        "type": "nested",
        "properties": {
          "attrId": {
            "type": "long"
          },
          "attrName": {
            "type": "keyword",
            "index": false,
            "doc_values": false
          },
          "attrValue": {
            "type": "keyword"
          }
        }
      }
    }
  }
}

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    仿照数据模型，在common公共部分新建to，用于search服务和product服务传输数据

    package com.xxxx.common.to.es;

import lombok.Data;

import java.math.BigDecimal;
import java.util.List;



@Data
public class SkuEsModel {

    private Long skuId;

    private Long spuId;

    private String skuTitle;

    private BigDecimal skuPrice;

    private String skuImg;

    private Long saleCount;

    private Boolean hasStock;

    private Long hotScore;

    private Long brandId;

    private Long catalogId;

    private String brandName;

    private String brandImg;

    private String catalogName;

    private List<Attrs> attrs;

    @Data
    public static class Attrs {

        private Long attrId;

        private String attrName;

        private String attrValue;

    }


}


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    业务
    在这里插入图片描述

    //商品上架
    ///product/spuinfo/{spuId}/up
    @PostMapping(value = "/{spuId}/up")
    public R spuUp(@PathVariable("spuId") Long spuId) {

        spuInfoService.up(spuId);

        return R.ok();
    }

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    实现类
    首先，查询出可以被检索的库存商品的属性信息和这些库存。
    根据商品集合id查询商品库存信息

    //1、查出当前spuId对应的所有sku信息,品牌的名字
        List<SkuInfoEntity> skuInfoEntities = skuInfoService.getSkusBySpuId(spuId);

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    对应实现方法

    @Override
    public List<SkuInfoEntity> getSkusBySpuId(Long spuId) {
        List<SkuInfoEntity> skuInfoEntities = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id", spuId));

        return skuInfoEntities;
    }

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    根据商品集合id查出对应的所有商品集合属性信息，查出来后封装属性id

    List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);

List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

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    对应实现方法

    	@Override
    public List<ProductAttrValueEntity> baseAttrListforspu(Long spuId) {

        List<ProductAttrValueEntity> attrValueEntityList = this.baseMapper.selectList(
                new QueryWrapper<ProductAttrValueEntity>().eq("spu_id", spuId));

        return attrValueEntityList;
    }

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    根据当前属性id验证这些属性id是否存在并且这个属性是否可以被搜索。将可以被搜索的属性的id封装成set。

    		List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);
        //转换为Set集合
        Set<Long> idSet = searchAttrIds.stream().collect(Collectors.toSet());

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    对应实现方法

    	@Override
    public List<Long> selectSearchAttrs(List<Long> attrIds) {

        List<Long> searchAttrIds = this.baseMapper.selectSearchAttrIds(attrIds);

        return searchAttrIds;
    }

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    搜索语句

    	<select id="selectSearchAttrIds" resultType="java.lang.Long">

        SELECT attr_id FROM pms_attr WHERE attr_id IN
        <foreach collection="attrIds" item="id" separator="," open="(" close=")">
            #{id}
        </foreach>
        AND search_type = 1

    </select>

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    在To里面验证当前商品集合的属性确实是可以被检索的，然后设置To的属性信息。

    		List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs);
            return attrs;
        }).collect(Collectors.toList());

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    封装这个商品集合的库存信息的id，远程调用查询库存。最后封装对应的库存信息Vo。

    		Map<Long, Boolean> stockMap = null;
        try {
            R skuHasStock = wareFeignService.getSkuHasStock(skuIdList);
            //
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {};
            stockMap = skuHasStock.getData(typeReference).stream()
                    .collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        } catch (Exception e) {
            log.error("库存服务查询异常：原因{}",e);
        }

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    对应远程调用接口

    在这里插入图片描述

    package com.xxxx.gulimall.product.feign;

import com.xxxx.common.utils.R;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

import java.util.List;



@FeignClient("gulimall-ware")
public interface WareFeignService {

    @PostMapping(value = "/ware/waresku/hasStock")
    R getSkuHasStock(@RequestBody List<Long> skuIds);

}


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    查看是否有库存的方法

    	/**
     * 查询sku是否有库存
     * @return
     */
    @PostMapping(value = "/hasStock")
    public R getSkuHasStock(@RequestBody List<Long> skuIds) {

        //skuId stock
        List<SkuHasStockVo> vos = wareSkuService.getSkuHasStock(skuIds);

        return R.ok().setData(vos);

    }

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    实现类
    若是有库存，设置库存Vo为true，否则为false

    	@Override
    public List<SkuHasStockVo> getSkuHasStock(List<Long> skuIds) {

        List<SkuHasStockVo> skuHasStockVos = skuIds.stream().map(item -> {
            Long count = this.baseMapper.getSkuStock(item);
            SkuHasStockVo skuHasStockVo = new SkuHasStockVo();
            skuHasStockVo.setSkuId(item);
            skuHasStockVo.setHasStock(count == null?false:count > 0);
            return skuHasStockVo;
        }).collect(Collectors.toList());
        return skuHasStockVos;
    }

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    sql

    	<select id="getSkuStock" resultType="java.lang.Long">
        SELECT
               SUM(stock - stock_locked)
        FROM
             wms_ware_sku
        WHERE
              sku_id = #{skuId}
    </select>

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    对应Vo

    package com.xxxx.common.to;

import lombok.Data;



@Data
public class SkuHasStockVo {

    private Long skuId;

    private Boolean hasStock;

}


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    第二步，封装库存信息

    但是在设置库存的时候，没有库存也得给它设置为true（不然会出异常），否则就按查到的库存数量来。

    		Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> collect = skuInfoEntities.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            //设置库存信息
            if (finalStockMap == null) {
                esModel.setHasStock(true);
            } else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分。0
            esModel.setHotScore(0L);

            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brandEntity = brandService.getById(sku.getBrandId());
            esModel.setBrandName(brandEntity.getName());
            esModel.setBrandId(brandEntity.getBrandId());
            esModel.setBrandImg(brandEntity.getLogo());

            CategoryEntity categoryEntity = categoryService.getById(sku.getCatalogId());
            esModel.setCatalogId(categoryEntity.getCatId());
            esModel.setCatalogName(categoryEntity.getName());

            //设置检索属性
            esModel.setAttrs(attrsList);

            BeanUtils.copyProperties(sku,esModel);

            return esModel;
        }).collect(Collectors.toList());

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    第三步就是发送这些库存信息给search服务，要是成功上架，修改商品库存信息状态为“上架”

    		R r = searchFeignService.productStatusUp(collect);

        if (r.getCode() == 0) {
            //远程调用成功
            //TODO 6、修改当前spu的状态
            this.baseMapper.updaSpuStatus(spuId, ProductConstant.ProductStatusEnum.SPU_UP.getCode());
        } else {
            //远程调用失败
            //TODO 7、重复调用？接口幂等性:重试机制
        }

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    远程接口

    package com.xxxx.gulimall.product.feign;


import com.xxxx.common.to.es.SkuEsModel;
import com.xxxx.common.utils.R;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

import java.util.List;



@FeignClient("gulimall-search")
public interface SearchFeignService {

    @PostMapping(value = "/search/save/product")
    public R productStatusUp(@RequestBody List<SkuEsModel> skuEsModels);

}

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    库存服务的对应Controller

    	/**
     * 上架商品
     * @param skuEsModels
     * @return
     */
    @PostMapping(value = "/product")
    public R productStatusUp(@RequestBody List<SkuEsModel> skuEsModels) {

        boolean status=false;
        try {
            status = productSaveService.productStatusUp(skuEsModels);
        } catch (IOException e) {
            //log.error("商品上架错误{}",e);

            return R.error(BizCodeEnum.PRODUCT_UP_EXCEPTION.getCode(),BizCodeEnum.PRODUCT_UP_EXCEPTION.getMessage());
        }

        if(status){
            return R.error(BizCodeEnum.PRODUCT_UP_EXCEPTION.getCode(),BizCodeEnum.PRODUCT_UP_EXCEPTION.getMessage());
        }else {
            return R.ok();
        }

    }

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    在保存信息之前，得在es中保存索引

    在这里插入图片描述

    package com.xxxx.gulimall.search.constant;


public class EsConstant {

    //在es中的索引
    public static final String PRODUCT_INDEX = "gulimall_product";

    public static final Integer PRODUCT_PAGESIZE = 16;
}


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    以及elasticsearch的客户端连接配置

    package com.xxxx.gulimall.search.config;

import org.apache.http.HttpHost;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class GulimallElasticSearchConfig {

    public static final RequestOptions COMMON_OPTIONS;

    /**
     * 通用设置项
     */
    static {
        RequestOptions.Builder builder = RequestOptions.DEFAULT.toBuilder();
//        builder.addHeader("Authorization", "Bearer " + TOKEN);
//        builder.setHttpAsyncResponseConsumerFactory(
//                new HttpAsyncResponseConsumerFactory
//                        .HeapBufferedResponseConsumerFactory(30 * 1024 * 1024 * 1024));
        COMMON_OPTIONS = builder.build();
    }

    @Bean
    public RestHighLevelClient esRestClient() {
        RestHighLevelClient client = new RestHighLevelClient(
                RestClient.builder(
                        new HttpHost("192.168.75.129", 9200, "http")));// 如果此处是集群，传入多个主机就可以了
        return client;
    }
}


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    对应实现类

    package com.xxxx.gulimall.search.service.impl;

import com.alibaba.fastjson.JSON;
import com.xxxx.common.to.es.SkuEsModel;
import com.xxxx.gulimall.search.config.GulimallElasticSearchConfig;
import com.xxxx.gulimall.search.constant.EsConstant;
import com.xxxx.gulimall.search.service.ProductSaveService;
import lombok.extern.slf4j.Slf4j;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.xcontent.XContentType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;



@Slf4j
@Service("productSaveService")
public class ProductSaveServiceImpl implements ProductSaveService {

    @Autowired
    private RestHighLevelClient esRestClient;

    @Override
    public boolean productStatusUp(List<SkuEsModel> skuEsModels) throws IOException {

//1.在es中建立索引，建立号映射关系（doc/json/product-mapping.json）

        //2. 在ES中保存这些数据
        BulkRequest bulkRequest = new BulkRequest();
        for (SkuEsModel skuEsModel : skuEsModels) {
            //构造保存请求
            IndexRequest indexRequest = new IndexRequest(EsConstant.PRODUCT_INDEX);
            indexRequest.id(skuEsModel.getSkuId().toString());
            String jsonString = JSON.toJSONString(skuEsModel);
            indexRequest.source(jsonString, XContentType.JSON);
            bulkRequest.add(indexRequest);
        }


        BulkResponse bulk = esRestClient.bulk(bulkRequest, GulimallElasticSearchConfig.COMMON_OPTIONS);

        //TODO 如果批量错误
        boolean hasFailures = bulk.hasFailures();

        List<String> collect = Arrays.asList(bulk.getItems()).stream().map(item -> {
            return item.getId();
        }).collect(Collectors.toList());

        log.info("商品上架完成：{}",collect);

        return hasFailures;
    }
}


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    最终效果如下

    	@Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService productAttrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

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    @Transactional
    @Override
    public void up(Long spuId) {

        //1、查出当前spuId对应的所有sku信息,品牌的名字
        List<SkuInfoEntity> skuInfoEntities = skuInfoService.getSkusBySpuId(spuId);

        //TODO 4、查出当前sku的所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);

        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);
        //转换为Set集合
        Set<Long> idSet = searchAttrIds.stream().collect(Collectors.toSet());

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs);
            return attrs;
        }).collect(Collectors.toList());

        List<Long> skuIdList = skuInfoEntities.stream()
                .map(SkuInfoEntity::getSkuId)
                .collect(Collectors.toList());
        //TODO 1、发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            R skuHasStock = wareFeignService.getSkuHasStock(skuIdList);
            //
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {};
            stockMap = skuHasStock.getData(typeReference).stream()
                    .collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        } catch (Exception e) {
            log.error("库存服务查询异常：原因{}",e);
        }

        //2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> collect = skuInfoEntities.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            //设置库存信息
            if (finalStockMap == null) {
                esModel.setHasStock(true);
            } else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分。0
            esModel.setHotScore(0L);

            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brandEntity = brandService.getById(sku.getBrandId());
            esModel.setBrandName(brandEntity.getName());
            esModel.setBrandId(brandEntity.getBrandId());
            esModel.setBrandImg(brandEntity.getLogo());

            CategoryEntity categoryEntity = categoryService.getById(sku.getCatalogId());
            esModel.setCatalogId(categoryEntity.getCatId());
            esModel.setCatalogName(categoryEntity.getName());

            //设置检索属性
            esModel.setAttrs(attrsList);

            BeanUtils.copyProperties(sku,esModel);

            return esModel;
        }).collect(Collectors.toList());

        //TODO 5、将数据发给es进行保存：gulimall-search
        R r = searchFeignService.productStatusUp(collect);

        if (r.getCode() == 0) {
            //远程调用成功
            //TODO 6、修改当前spu的状态
            this.baseMapper.updaSpuStatus(spuId, ProductConstant.ProductStatusEnum.SPU_UP.getCode());
        } else {
            //远程调用失败
            //TODO 7、重复调用？接口幂等性:重试机制
        }
    }

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  • 原文地址：https://blog.csdn.net/qq_44737138/article/details/126474709