谷粒商城-分布式高级篇[商城业务-检索服务]

1. 谷粒商城-分布式基础篇【环境准备】
2. 谷粒商城-分布式基础【业务编写】
3. 谷粒商城-分布式高级篇【业务编写】持续更新
4. 谷粒商城-分布式高级篇-ElasticSearch
5. 谷粒商城-分布式高级篇-分布式锁与缓存
6. 项目托管于gitee
   
   

一、商城业务-检索服务

确保gulimall-search 服务开启注册中心并加入到nacos中

gulimall-search 服务下：

1.1、搭建页面环境

---

1.1.1、动静资源配置

动静分离

1. 给gulimall-search服务加入依赖Thymeleaf依赖

   <dependency>
       <groupId>org.springframework.bootgroupId>
       <artifactId>spring-boot-starter-thymeleafartifactId>
   dependency>
   <dependency>
       <groupId>org.springframework.bootgroupId>
       <artifactId>spring-boot-devtoolsartifactId>
   dependency>
   

2. 将2.分布式高级篇/代码/html/搜索页路径下的 index.html首页复制到 gulimall-search服务src/main/resources/templates路径下

3. 将2.分布式高级篇/代码/html/搜索页路径下的 所有其他静态资源复制到 nginx 的

   hgw@HGWdeAir search % pwd
   /Users/hgw/Documents/Software/mydata/nginx/html/static/search
   hgw@HGWdeAir search % ll
   total 0
   drwxrwxr-x@  4 hgw  staff   128B  3 22  2020 css
   drwxrwxr-x@ 12 hgw  staff   384B  3 22  2020 font
   drwxrwxr-x@ 68 hgw  staff   2.1K  3 22  2020 image
   drwxrwxr-x@ 86 hgw  staff   2.7K  3 22  2020 img
   drwxrwxr-x@  4 hgw  staff   128B  3 22  2020 js
   drwxrwxr-x@  3 hgw  staff    96B  3 22  2020 sass
   

4. 修改index.html 的静态资源请求路径

   href="		-->		href="/static/search/
   src="			-->		src="/static/search/
   

1.1.2、配置 Nginx 和 网关

配置 Nginx 和 网关

1. 修改本地的 hosts文件 vim /etc/hosts

   # Gulimall Host Start
   127.0.0.1 gulimall.cn
   127.0.0.1 search.gulimall.cn
   # Gulimall Host End
   

2. 配置Nginx（将search下的请求转给网关）

   hgw@HGWdeAir conf.d % pwd
   /Users/hgw/Documents/Software/mydata/nginx/conf/conf.d
   hgw@HGWdeAir conf.d % vim gulimall.conf 
   

   server {
       listen       80;
       server_name  gulimall.cn  *.gulimall.cn;
   

   重启nginx容器：docker restart nginx

3. 配置网关
   修改gulimall-gateway服务 /src/main/resources路径下的 application.yml

           - id: gulimall_host_route
             uri: lb://gulimall-product
             predicates:
               - Host=gulimall.cn
   
           - id: gulimall_search_route
             uri: lb://gulimall-search
             predicates:
               - Host=search.gulimall.cn
   

访问 ：http://search.gulimall.cn/ ，成功跳转

1.1.3、调整页面跳转

调整页面跳转

修改gulimall-search服务中的index.html文件名修改为 list.html，并

1. 修改的list.html中首页的请求路径为：http://gulimall.cn

2. 修改nginx 静态资源路径下的mydata/nginx/html/static/index/js 下的 catalogLoader.js 中的gmall请求为你自己的请求：

   var cata3link = $("+ctg3.id+"\" style=\"color: #999;\">" + ctg3.name + "");
   

3. 搜索 search() ，进行修改

   • 第一处：

   <a href="javascript:search();"><img src="/static/index/img/img_09.png" /></a>
   

   • 第二处：

   function search() {
     	var keyword=$("#searchText").val()
     	window.location.href="http://search.gulimall.cn/list.html?keyword="+keyword;
   }
   

1.1.3、调整页面跳转

调整页面跳转

修改gulimall-search服务中的index.html文件名修改为 list.html，并

1. 修改的list.html中首页的请求路径为：http://gulimall.cn

2. 修改nginx 静态资源路径下的mydata/nginx/html/static/index/js 下的 catalogLoader.js 中的gmall请求为你自己的请求：

   var cata3link = $("+ctg3.id+"\" style=\"color: #999;\">" + ctg3.name + "");
   

3. 搜索 search() ，进行修改

   • 第一处：

   <a href="javascript:search();"><img src="/static/index/img/img_09.png" /></a>
   

   • 第二处：

   function search() {
     	var keyword=$("#searchText").val()
     	window.location.href="http://search.gulimall.cn/list.html?keyword="+keyword;
   }
   

1.2、搜索条件、返回结果分析

---

1.2.1、搜索条件分析

搜索条件分析

商品检索三个入口：

• 1）、选择分类进入商品检索
  

• 2）、输入检索关键字展示检索页
  

• 3）、选择筛选条件进入
  

---

1. 全文检索：skuTitle
2. 排序：saleCount(销量)、hotScore(热度分)、skuPrice(价格)
3. 过滤：hasStock、skuPrice区间、brandld、catalog3Id、attrs
4. 聚合：attrs

完整查询参数：catalog3Id=225&keyword=小米&sort=saleCount_desc/asc&hasStock=0/1&brandId=1&brandId=2&attrs=1_其他:安卓&attrs=2_5寸

封装页面所有可能传递过来的查询条件 com.atguigu.gulimall.search.vo 路径下

@Data
public class SearchParam {
    private String keyword;   // 页面传递过来的检索参数，相当于全文匹配关键字
    private Long catalog3Id;  // 三级分类的id

    /**
     *  sort=saleCount_desc/asc
     *  sort=skuPrice_asc/desc
     *  sort=hotScore_asc/desc
     */
    private String sort;    // 排序条件

    /**
     * 好多的过滤条件
     *  hasStock、skuPrice区间、brandId、catalog3Id、
     *  hasStock=0/1
     *  skuPrice=1_500/_500/500_
     *  brandId=1
     *
     */
    private Integer hasStock=1;       // 是否只显示有货 v 0(无库存) 1(有库存)
    private String skuPrice;        // 价格区间查询
    private List<Long> brandId;     // 按照品牌进行查询，可以多选
    private List<String> attrs;     // 按照属性进行筛选
    private Integer pageNum=1;        // 页码 默认第1页
}

1.2.2、检索返回结果分析

封装检索返回结果 com.atguigu.gulimall.search.vo 路径下

public class SearchResult {

    // 查询到的所有商品信息
    private List<SkuEsModel> products;


    /**
     * 分页信息
     */
    private Integer pageNum;   // 当前页码
    private Long total;        // 总记录数
    private Integer totalPages;// 总页码
    private List<Integer> pageNavs; // 导航页码

    private List<BrandVo> brands;       // 当前查询到的结果，所有涉及到的品牌
    private List<CatalogVo> ctatLogs;   // 当前查询到的结果，所有涉及到的分类
    private List<AttrVo> attrs;         // 当前查询到的结果，所有涉及到的属性


    //==================以上返回给页面的所有信息====================
    /**
     * 品牌
     */
    @Data
    public static class BrandVo{
        private Long brandId;
        private String brandName;
        private String brandImg;
    }

    /**
     * 分类
     */
    @Data
    public static class CatalogVo{
        private Long catalogId;
        private String catalogName;
    }

    /**
     * 属性
     */
    @Data
    public static class AttrVo{
        private Long attrId;
        private String attrName;
        private List<String> attrValue;
    }
}

1.3、DSL分析

---

• 模糊匹配
• 过滤（按照分类、品牌、属性、价格区间、库存）
• 排序、
• 分页、
• 高亮
• 聚合分析

GET gulimall_product/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "skuTitle": "华为"
          }
        }
      ],
      "filter": [
        {
          "term": {
            "catalogId": "225"
          }
        },
        {
          "terms": {
            "brandId": [
              "9",
              "7",
              "10"
            ]
          }
        },
        {
          "nested": {
            "path": "attrs",
            "query": {
              "bool": {
                "must": [
                  {
                    "term": {
                      "attrs.attrId": {
                        "value": "8"
                      }
                    }
                  },
                  {
                    "terms": {
                      "attrs.attrValue": [
                        "海斯 (Hisilicon)",
                        "以官网信息为准"
                      ]
                    }
                  }
                ]
              }
            }
          }
        },
        {
          "term": {
            "hasStock": {
              "value": "true"
            }
          }
        },
        {
          "range": {
            "skuPrice": {
              "gte": 0,
              "lte": 6000
            }
          }
        }
      ]
    }
  },
  "sort": [
    {
      "skuPrice": {
        "order": "desc"
      }
    }
  ],
  "from": 0,
  "size": 1,
  "highlight": {
    "fields": {"skuTitle": {}}, 
    "pre_tags": "",
    "post_tags": ""
  },
  "aggs": {
    "brand_agg": {
      "terms": {
        "field": "brandId",
        "size": 10
      },
      "aggs": {
        "brand_name_agg": {
          "terms": {
            "field": "brandName",
            "size": 10
          }
        },
        "brand_img_agg":{
          "terms": {
            "field": "brandImg",
            "size": 10
          }
        }
      }
    },
    "catelog_agg": {
      "terms": {
        "field": "catalogId",
        "size": 10
      },
      "aggs": {
        "catalog_name_agg": {
          "terms": {
            "field": "catalogName",
            "size": 10
          }
        }
      }
    },
    "attrs_agg": {
      "nested": {
        "path": "attrs"
      },
      "aggs": {
        "attr_id_agg": {
          "terms": {
            "field": "attrs.attrId",
            "size": 10
          },
          "aggs": {
            "attr_name_agg": {
              "terms": {
                "field": "attrs.attrName",
                "size": 10
              }
            },
            "attr_value_agg": {
              "terms": {
                "field": "attrs.attrValue",
                "size": 10
              }
            }
          }
        }
      }
    }
  }
}

这里由于需要使用到 brandName 进行检索，需要修改映射，在此进行数据迁移

删掉映射里的所有：

"index" : false,
"doc_values" : false

1. 创建一个新的映射

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

2. 数据转移

   # 迁移数据
   POST _reindex
   {
     "source": {
       "index": "product"
     },
     "dest": {
       "index": "gulimall_product"
     }
   }
   

3. 修改 gulimall-search 服务中 sku数据在es中的索引 的常量

   package com.atguigu.gulimall.search.constant;
   
   public class EsConstant {
   
       public static final String PRODUCT_INDEX = "gulimall_product";   // sku数据在es中的索引
   }
   

1.4、SearchRequest构建

---

总方法：

1. 准备检索请求
2. 执行检索请求
3. 分析相应数据并封装成需要的指定格式

@Service
public class MallSearchServiceImpl implements MallSearchService {

    @Autowired
    private RestHighLevelClient client;

    @Override
    public SearchResult search(SearchParam param) {
        // 动态的构建出查询的DSL语句
        SearchResult result = null;

        // 1、准备检索请求
        SearchRequest searchRequest = buildSearchRequrest(param);

        try {
            // 2、执行检索请求
            SearchResponse response = client.search(searchRequest, GulimallElasticSearchConfig.COMMON_OPTIONS);

            // 3、分析相应数据并封装成需要的指定格式
            result = buildSearchResult(response,param);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

准备检索请求

• 查询：模糊匹配，过滤（按照分类、品牌、属性、库存、价格区间）
• match-模糊匹配
• filter-过滤（按照分类、品牌、属性、库存、价格区间）
  • 按照三级分类id查询
  • 按照品牌id查询
  • 按照所有指定的属性进行查询
  • 按照是否拥有库存进行查询
  • 按照价格区间进行查询
• 排序
• 分页
• 高亮
• 聚合分析
  • 品牌聚合
  • 分类聚合
  • attr聚合

/**
 * 准备检索请求
 * 模糊匹配：过滤（按照属性、分类、品牌、价格区间、库存）、排序、分页、高亮，聚合分析
 * @return SearchRequest
 */
private SearchRequest buildSearchRequrest(SearchParam param) {
    // 构建DSL语句的
    SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();

    /**
     * 查询：模糊匹配，过滤（按照分类、品牌、属性、库存、价格区间）
     */
    // 1、构建bool-query
    BoolQueryBuilder boolBuilder = QueryBuilders.boolQuery();
    // 1.1、match-模糊匹配
    if (!StringUtils.isEmpty(param.getKeyword())) {
        boolBuilder.must(QueryBuilders.matchQuery("skuTitle", param.getKeyword()));
    }

    // 1.2、filter-过滤（按照分类、品牌、属性、库存、价格区间）
    // 1.2.1、按照三级分类id查询
    if (param.getCatalog3Id() != null) {
        boolBuilder.filter(QueryBuilders.termQuery("catalogId", param.getCatalog3Id()));
    }
    // 1.2.2、按照品牌id查询
    if (param.getBrandId() != null && param.getBrandId().size()>0) {
        boolBuilder.filter(QueryBuilders.termsQuery("brandId", param.getBrandId()));
    }
    // 1.2.3、按照所有指定的属性进行查询
    if (param.getAttrs()!=null && param.getAttrs().size()>0) {
        for (String attrStr : param.getAttrs()) {
            // attrs=1_其他:安卓&attrs=2_5寸:1.5寸
            BoolQueryBuilder nestedBoolBuilder = QueryBuilders.boolQuery();
            String[] s = attrStr.split("_");
            String attrId = s[0];   // 检索的属性id
            String[] attrValues = s[1].split(":");  // 这个属性检索用的值
            nestedBoolBuilder.must(QueryBuilders.termQuery("attrs.attrId",attrId));
            nestedBoolBuilder.must(QueryBuilders.termsQuery("attrs.attrValue",attrValues));
            // 每一个必须都得生成一个嵌入式的查询nested
            NestedQueryBuilder nestedQuery = QueryBuilders.nestedQuery("attrs", nestedBoolBuilder, ScoreMode.None);
            boolBuilder.filter(nestedQuery);
        }
    }
    // 1.2.4、按照是否拥有库存进行查询
        if (param.getHasStock() != null) {
            boolBuilder.filter(QueryBuilders.termQuery("hasStock", param.getHasStock()==1));
        }
    // 1.2.5、按照价格区间进行查询
    if (!StringUtils.isEmpty(param.getSkuPrice())){
        // 1_500/_500/500_
        RangeQueryBuilder rangeQuery = QueryBuilders.rangeQuery("skuPrice");
        String[] s = param.getSkuPrice().split("_");
        if (s.length==2){
            // 区间
            rangeQuery.gte(s[0]).lte(s[1]);
        } else if (s.length == 1) {
            if (param.getSkuPrice().startsWith("_")) {
                rangeQuery.lte(s[0]);
            }
            if (param.getSkuPrice().endsWith("_")) {
                rangeQuery.gte(s[0]);
            }
        }
        boolBuilder.filter(rangeQuery);
    }

    // 把以前的所有条件都拿来进行封装
    sourceBuilder.query(boolBuilder);

    /**
     * 排序、分页、高亮
     */
    // 2、排序
    if (!StringUtils.isEmpty(param.getSort())){
        String sort = param.getSort();
        // sort=saleCount_desc/asc
        String[] s = sort.split("_");
        SortOrder order = s[1].equalsIgnoreCase("asc")?SortOrder.ASC:SortOrder.DESC;
        sourceBuilder.sort(s[0], order);
    }
    // 3、分页
    sourceBuilder.from((param.getPageNum()-1)*EsConstant.PRODUCT_PAGESIZE);
    sourceBuilder.size(EsConstant.PRODUCT_PAGESIZE);
    // 4、高亮
    if (!StringUtils.isEmpty(param.getKeyword())) {
        HighlightBuilder highlightBuilder = new HighlightBuilder();
        highlightBuilder.field("skuTitle");
        highlightBuilder.preTags("");
        highlightBuilder.postTags("");
        sourceBuilder.highlighter(highlightBuilder);
    }


    /**
     * 聚合分析
     */
    // 5.1、品牌聚合
    TermsAggregationBuilder brand_agg = AggregationBuilders.terms("brand_agg");
    brand_agg.field("brandId").size(50);
    brand_agg.subAggregation(AggregationBuilders.terms("brand_name_agg").field("brandName").size(1)); // 品牌聚合的子聚合
    brand_agg.subAggregation(AggregationBuilders.terms("brand_img_agg").field("brandImg").size(1));
    // TODO 1、聚合brand
    sourceBuilder.aggregation(brand_agg);
    // 5.2、分类聚合
    TermsAggregationBuilder catalog_agg = AggregationBuilders.terms("catalog_agg").field("catalogId").size(20);
    catalog_agg.subAggregation(AggregationBuilders.terms("catalog_name_agg").field("catalogName").size(1));
    // TODO 2、聚合catalog
    sourceBuilder.aggregation(catalog_agg);
    // 5.3、属性聚合
    NestedAggregationBuilder attrs_agg = AggregationBuilders.nested("attrs_agg", "attrs"); // 嵌入聚合
    // 聚合出当前所有的attrId
    TermsAggregationBuilder attr_id_agg = AggregationBuilders.terms("attr_id_agg").field("attrs.attrId");
    // 聚合分析出当前attr_id对应的名字
    attr_id_agg.subAggregation(AggregationBuilders.terms("attr_name_agg").field("attrs.attrName").size(1));
    // 聚合分析出当前attr_id对应所有可能的属性值attrValue
    attr_id_agg.subAggregation(AggregationBuilders.terms("attr_value_agg").field("attrs.attrValue").size(50));
    attrs_agg.subAggregation(attr_id_agg);
    // TODO 3、聚合attr
    sourceBuilder.aggregation(attrs_agg);

    SearchRequest searchRequest = new SearchRequest(new String[]{EsConstant.PRODUCT_INDEX}, sourceBuilder);
    return searchRequest;
}

构建结果数据

• 返回的所有查询到的商品
• 当前所有商品涉及到的所有属性信息
• 保存当前商品所涉及的所有品牌信息
• 保存当前商品所涉及的所有分类信息
• 分页信息

/**
 * 构建结果数据
 * @param response  执行检索请求获得的响应数据
 * @return  封装成需要的指定格式并返回
 */
private SearchResult buildSearchResult(SearchResponse response, SearchParam param) {

    SearchResult result = new SearchResult();

    // 1、返回的所有查询到的商品
    SearchHits hits = response.getHits();
    List<SkuEsModel> esModels = new ArrayList<>();
    if (hits.getHits()!=null && hits.getHits().length>0) {
        for (SearchHit hit : hits.getHits()) {
            String sourceAsString = hit.getSourceAsString();
            SkuEsModel esModel = JSON.parseObject(sourceAsString, SkuEsModel.class);
            if (!StringUtils.isEmpty(param.getKeyword())) {
                HighlightField skuTitle = hit.getHighlightFields().get("skuTitle");
                String string = skuTitle.getFragments()[0].string();
                esModel.setSkuTitle(string);
            }
            esModels.add(esModel);
        }
    }
    result.setProducts(esModels);


    // 2、当前所有商品涉及到的所有属性信息
    List<SearchResult.AttrVo> attrVos = new ArrayList<>();
    ParsedNested attrs_agg = response.getAggregations().get("attrs_agg");
    ParsedLongTerms attr_id_agg = attrs_agg.getAggregations().get("attr_id_agg");
    for (Terms.Bucket bucket : attr_id_agg.getBuckets()) {
        SearchResult.AttrVo attrVo = new SearchResult.AttrVo();
        // 1、得到属性的id
        long attrId = bucket.getKeyAsNumber().longValue();
        // 2、得到属性的名字
        String attrName = ((ParsedStringTerms) bucket.getAggregations().get("attr_name_agg")).getBuckets().get(0).getKeyAsString();
        // 3、得到属性的所有值
        List<String> attrValues = ((ParsedStringTerms) bucket.getAggregations().get("attr_value_agg")).getBuckets().stream().map(item -> {
            String keyAsString = ((Terms.Bucket) item).getKeyAsString();
            return keyAsString;
        }).collect(Collectors.toList());
        attrVo.setAttrId(attrId);
        attrVo.setAttrName(attrName);
        attrVo.setAttrValue(attrValues);
        attrVos.add(attrVo);
    }
    result.setAttrs(attrVos);

    // 3、保存当前商品所涉及的所有品牌信息
    List<SearchResult.BrandVo> brandVos = new ArrayList<>();
    ParsedLongTerms brand_agg = response.getAggregations().get("brand_agg");
    for (Terms.Bucket bucket : brand_agg.getBuckets()) {
        SearchResult.BrandVo brandVo = new SearchResult.BrandVo();
        // 1、得到品牌的id
        long brandId = bucket.getKeyAsNumber().longValue();
        // 2、得到品牌的name
        String brandName = ((ParsedStringTerms) bucket.getAggregations().get("brand_name_agg")).getBuckets().get(0).getKeyAsString();
        // 3、得到品牌的img
        String brandImg = ((ParsedStringTerms) bucket.getAggregations().get("brand_img_agg")).getBuckets().get(0).getKeyAsString();
        brandVo.setBrandId(brandId);
        brandVo.setBrandImg(brandName);
        brandVo.setBrandImg(brandImg);
        brandVos.add(brandVo);
    }
    result.setBrands(brandVos);

    // 4、保存当前商品所涉及的所有分类信息
    List<SearchResult.CatalogVo> catalogVos = new ArrayList<>();
    ParsedLongTerms catalog_agg = response.getAggregations().get("catalog_agg");
    List<? extends Terms.Bucket> buckets = catalog_agg.getBuckets();
    for (Terms.Bucket bucket : buckets) {
        SearchResult.CatalogVo catalogVo = new SearchResult.CatalogVo();
        // 得到分类id
        catalogVo.setCatalogId(bucket.getKeyAsNumber().longValue());
        // 得到分类name
        ParsedStringTerms catalog_name_agg = bucket.getAggregations().get("catalog_name_agg");
        String catalog_name = catalog_name_agg.getBuckets().get(0).getKeyAsString();
        catalogVo.setCatalogName(catalog_name);
        catalogVos.add(catalogVo);
    }
    result.setCtatLogs(catalogVos);

    // 5、分页信息
    // 分页信息-页码
    result.setPageNum(param.getPageNum());
    // 分页信息-总记录数
    long total = hits.getTotalHits().value;
    result.setTotal(total);
    // 分页信息-总页码 (总记录数 对 每页数求余数）
    int totalPages = (int)total%EsConstant.PRODUCT_PAGESIZE==0 ? ((int)total/EsConstant.PRODUCT_PAGESIZE) : ((int)total/EsConstant.PRODUCT_PAGESIZE+1);
    result.setTotalPages(totalPages);
   // 分页信息-导航栏
    List<Integer> pageNavs = new ArrayList<>();
    for (int i = 1; i <= totalPages; i++) {
      pageNavs.add(i);
    }
  	result.setPageNavs(pageNavs);

    return result;
}

1.5、页面效果

---

1.5.1、页面基本渲染

页面基本渲染

• 修改排序内容

  • 删掉多余的
    盒子下的三个div, 只留下一个
  • 修改价格
  • 修改图片的路径
  • 修改skuTitle

• 修改品牌

  1. 删掉多余 li
  2. 进行修改

• 修改规格属性

• 增加分类信息

<div class="JD_banner w">
    <div class="JD_nav">
        <div class="JD_selector">
            
            <div class="title">
                <h3><b>手机b><em>商品筛选em>h3>
                <div class="st-ext">共 <span>10135span>个商品 div>
            div>
            <div class="JD_nav_logo">
                
                <div class="JD_nav_wrap">
                    <div class="sl_key">
                        <span><b>品牌：b>span>
                    div>
                    <div class="sl_value">
                        <div class="sl_value_logo">
                            <ul>
                                <li th:each="brand:${result.brands}">
                                    <a href="/static/search/#">
                                        <img th:src="${brand.brandImg}" alt="">
                                        <div th:text="${brand.brandName}">
                                            华为(HUAWEI)
                                        div>
                                    a>
                                li>
                            ul>
                        div>
                    div>
                    <div class="sl_ext">
                        <a href="/static/search/#">
                            更多
                            <i style='background: url("image/search.ele.png")no-repeat 3px 7px'>i>
                            <b style='background: url("image/search.ele.png")no-repeat 3px -44px'>b>
                        a>
                        <a href="/static/search/#">
                            多选
                            <i>+i>
                            <span>+span>
                        a>
                    div>
                div>
                
                <div class="JD_pre">
                    <div class="sl_key">
                        <span><b>分类：b>span>
                    div>
                    <div class="sl_value">
                        <ul>
                            <li th:each="catalog:${result.ctatLogs}"><a href="/static/search/#" th:text="${catalog.catalogName}">分类a>li>
                        ul>
                    div>
                    <div class="sl_ext">
                        <a href="/static/search/#">
                            更多
                            <i style='background: url("image/search.ele.png")no-repeat 3px 7px'>i>
                            <b style='background: url("image/search.ele.png")no-repeat 3px -44px'>b>
                        a>
                        <a href="/static/search/#">
                            多选
                            <i>+i>
                            <span>+span>
                        a>
                    div>
                div>
                
                <div class="JD_pre" th:each="attr:${result.attrs}">
                    <div class="sl_key">
                        <span th:text="${attr.attrName}">屏幕尺寸：span>
                    div>
                    <div class="sl_value">
                        <ul>
                            <li th:each="val:${attr.attrValue}"><a href="/static/search/#" th:text="${val}">5.56英寸及以上a>li>
                        ul>
                    div>
                div>
            div>
            <div class="JD_show">
                <a href="/static/search/#">
                    <span>
                        更多选项（ CPU核数、网络、机身颜色 等）
                    span>
                a>
            div>
        div>
        
        <div class="JD_banner_main">
            
            <div class="JD_con_left">
                <div class="JD_con_left_bar">
                    <div class="JD_con_one">
                        <div class="mt">
                            <h3>商品精选h3>
                            <span>广告span>
                        div>
                        <div class="mc">
                            <ul>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/59bf3c47n91d65c73.jpg" alt="">a>
                                    <a href="/static/search/#" title="【预约版】华为 HUAWEI 畅享7S 全面屏双摄 4GB +64GB 黑色 移动联通电信4G手机 双卡双待">
                                        <em>华为 HUAWEI nova 2S 全面屏四摄 6GB +64GB 曜石黑 移动联通电信4G手机 双卡双待em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥2999.00span>
                                        strong>
                                        <span class="mc-ico" title="购买本商品送赠品">
                                            <i class="goods-icons">赠品i>
                                        span>
                                    div>
                                    <div class="mc_rev">
                                        已有
                                        <a href="/static/search/#" class="number">12466a>
                                        人评价
                                    div>
                                li>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/59bf3c47n91d65c73.jpg" alt="">a>
                                    <a href="/static/search/#" title="【预约版】华为 HUAWEI 畅享7S 全面屏双摄 4GB +64GB 黑色 移动联通电信4G手机 双卡双待">
                                        <em>华为 HUAWEI nova 2S 全面屏四摄 6GB +64GB 曜石黑 移动联通电信4G手机 双卡双待em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥2999.00span>
                                        strong>
                                        <span class="mc-ico" title="购买本商品送赠品">
                                            <i class="goods-icons">赠品i>
                                        span>
                                    div>
                                    <div class="mc_rev">
                                        已有
                                        <a href="/static/search/#" class="number">12466a>
                                        人评价
                                    div>
                                li>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/593ba628n8794c6a6.jpg" alt="">a>
                                    <a href="/static/search/#" title="【预约版】华为 HUAWEI 畅享7S 全面屏双摄 4GB +64GB 黑色 移动联通电信4G手机 双卡双待">
                                        <em>诺基亚 7 (Nokia 7) 4GB+64GB 黑色 全网通 双卡双待 移动联通电信4G手机em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥1799.00span>
                                        strong>
                                        <span class="mc-ico" title="购买本商品送赠品">
                                            <i class="goods-icons">赠品i>
                                        span>
                                    div>
                                    <div class="mc_rev">
                                        已有
                                        <a href="/static/search/#" class="number">15600a>
                                        人评价
                                    div>
                                li>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/5919637an271a1301.jpg" alt="">a>
                                    <a href="/static/search/#" title="【预约版】华为 HUAWEI 畅享7S 全面屏双摄 4GB +64GB 黑色 移动联通电信4G手机 双卡双待">
                                        <em>vivo Xplay6 全网通 6GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥3498.00span>
                                        strong>
                                        <span class="mc-ico" title="购买本商品送赠品">
                                            <i class="goods-icons">赠品i>
                                        span>
                                    div>
                                    <div class="mc_rev">
                                        已有
                                        <a href="/static/search/#" class="number">5369a>
                                        人评价
                                    div>
                                li>
                            ul>
                        div>
                    div>
                    <div class="JD_con_one">
                        <div class="mt">
                            <h3>达人选购h3>
                        div>
                        <div class="mc">
                            <ul>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/59bf3c47n91d65c73.jpg" alt="">a>
                                    <a href="/static/search/#">
                                        <em>华为 HUAWEI nova 2S 全面屏四摄 6GB +64GB 曜石黑 移动联通电信4G手机 双卡双待em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥2999.00span>
                                        strong>
                                    div>
                                li>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/59bf3c47n91d65c73.jpg" alt="">a>
                                    <a href="/static/search/#">
                                        <em>华为 HUAWEI nova 2S 全面屏四摄 6GB +64GB 曜石黑 移动联通电信4G手机 双卡双待em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥2999.00span>
                                        strong>
                                    div>
                                li>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/593ba628n8794c6a6.jpg" alt="">a>
                                    <a href="/static/search/#">
                                        <em>诺基亚 7 (Nokia 7) 4GB+64GB 黑色 全网通 双卡双待 移动联通电信4G手机em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥1799.00span>
                                        strong>
                                    div>
                                li>
                                <li>
                                    <a href="/static/search/#" title="vivo X9s 全网通 4GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待"><img src="/static/search/img/5919637an271a1301.jpg" alt="">a>
                                    <a href="/static/search/#">
                                        <em>vivo Xplay6 全网通 6GB+64GB 磨砂黑 移动联通电信4G手机 双卡双待em>
                                    a>
                                    <div class="mc_price">
                                        <strong class="price">
                                            <span class="J-p-5963064">￥3498.00span>
                                        strong>
                                    div>
                                li>
                            ul>
                        div>
                    div>
                    <div class="JD_con_one" style="border:none;">
                        <div class="mt">
                            <h3>商品精选h3>
                            <span>广告span>
                        div>
                        <div class="mc">
                            <ul>
                                <li>
                                    <a href="/static/search/#"><img src="/static/search/img/599a806bn9d829c1c.jpg" alt="">a>
                                li>
                                <li>
                                    <a href="/static/search/#"><img src="/static/search/img/593e4de0n5ff878a4.jpg" alt="">a>
                                li>
                            ul>
                        div>
                    div>
                div>
            div>
            
            <div class="JD_con_right">
                <div class="filter">
                    
                    <div class="filter_top">
                        <div class="filter_top_left">
                            <a href="/static/search/#">综合排序a>
                            <a href="/static/search/#">销量a>
                            <a href="/static/search/#">价格a>
                            <a href="/static/search/#">评论分a>
                            <a href="/static/search/#">上架时间a>
                        div>
                        <div class="filter_top_right">
                            <span class="fp-text">
                               <b>1b><em>/em><i>169i>
                           span>
                            <a href="/static/search/#" class="prev"><a>
                            <a href="/static/search/#" class="next"> > a>
                        div>
                    div>
                    
                    <div class="filter_bottom">
                        <div class="filter_bottom_left">
                            <div class="fs-cell">收货地div>
                            <div class="dizhi">
                                <div class="dizhi_show">
                                    <em>北京朝阳区三环以内em>
                                    <b>b>
                                div>
                            div>
                            <div class="dizhi_con">
                                <ul id="tab">
                                    <li id="tab1" value="1">北京 <img src="/static/search/image/[email protected]" alt="">li>
                                    <li id="tab2" value="2">朝阳 <img src="/static/search/image/[email protected]" alt="">li>
                                    <li id="tab3" value="3">三环以内 <img src="/static/search/image/[email protected]" alt="">li>
                                ul>
                                <div id="container">
                                    <div id="content1" style="z-index: 1;">
                                        <a href="/static/search/#">北京a>
                                        <a href="/static/search/#">上海a>
                                        <a href="/static/search/#">天津a>
                                        <a href="/static/search/#">重庆a>
                                        <a href="/static/search/#">河北a>
                                        <a href="/static/search/#">山西a>
                                        <a href="/static/search/#">河南a>
                                        <a href="/static/search/#">辽宁a>
                                        <a href="/static/search/#">吉林a>
                                        <a href="/static/search/#">黑龙江a>
                                        <a href="/static/search/#">内蒙古a>
                                        <a href="/static/search/#">江苏a>
                                        <a href="/static/search/#">山东a>
                                        <a href="/static/search/#">安徽a>
                                        <a href="/static/search/#">浙江a>
                                        <a href="/static/search/#">福建a>
                                        <a href="/static/search/#">湖北a>
                                        <a href="/static/search/#">湖南a>
                                        <a href="/static/search/#">广东a>
                                        <a href="/static/search/#">广西a>
                                        <a href="/static/search/#">江西a>
                                        <a href="/static/search/#">四川a>
                                        <a href="/static/search/#">海南a>
                                        <a href="/static/search/#">贵州a>
                                        <a href="/static/search/#">云南a>
                                        <a href="/static/search/#">西藏a>
                                        <a href="/static/search/#">陕西a>
                                        <a href="/static/search/#">甘肃a>
                                        <a href="/static/search/#">青海a>
                                        <a href="/static/search/#">宁夏a>
                                        <a href="/static/search/#">新疆a>
                                        <a href="/static/search/#">港澳a>
                                        <a href="/static/search/#">台湾a>
                                        <a href="/static/search/#">钓鱼岛a>
                                        <a href="/static/search/#">海外a>

                                    div>
                                    <div id="content2">
                                        <a href="/static/search/#">朝阳区a>
                                        <a href="/static/search/#">海淀区a>
                                        <a href="/static/search/#">西城区a>
                                        <a href="/static/search/#">东城区a>
                                        <a href="/static/search/#">大兴区a>
                                        <a href="/static/search/#">丰台区a>
                                        <a href="/static/search/#">昌平区a>
                                        <a href="/static/search/#">顺义区a>

                                    div>
                                    <div id="content3">
                                        <a href="/static/search/#">三环以内a>
                                        <a href="/static/search/#">管庄a>
                                        <a href="/static/search/#">北苑a>
                                        <a href="/static/search/#">定福庄a>
                                        <a href="/static/search/#">三环到四环之间a>
                                        <a href="/static/search/#">四环到五环之间a>
                                        <a href="/static/search/#">五环到六环之间a>
                                    div>
                                div>
                            div>
                        div>
                        <div class="filter_bottom_right">
                            <ul>
                                <li>
                                    <a href="/static/search/#">
                                        <i>i>
                                        谷粒商城配送
                                    a>
                                li>
                                <li>
                                    <a href="/static/search/#">
                                        <i>i>
                                        京尊达                                    a>
                                li>
                                <li>
                                    <a href="/static/search/#">
                                        <i>i>
                                        货到付款
                                    a>
                                li>
                                <li>
                                    <a href="/static/search/#">
                                        <i>i>
                                        仅显示有货
                                    a>
                                li>
                                <li>
                                    <a href="/static/search/#">
                                        <i>i>
                                        可配送全球
                                    a>
                                li>
                            ul>
                        div>

                    div>
                    
                    <div class="rig_tab">
                        <div th:each="product:${result.getProducts()}">
                            <div class="ico">
                                <i class="iconfont icon-weiguanzhu">i>
                                <a href="/static/search/#">关注a>
                            div>
                            <p class="da">
                                <a href="/static/search/#" >
                                    <img th:src="${product.skuImg}" class="dim">
                                a>
                            p>
                            <ul class="tab_im">
                                <li><a href="/static/search/#" title="黑色">
                                    <img th:src="${product.skuImg}">a>li>
                            ul>
                            <p class="tab_R">
                                <span th:text="'¥'+${product.skuPrice}">¥5199.00span>
                            p>
                            <p class="tab_JE">
                                <a href="/static/search/#" th:utext="${product.skuTitle}">
                                    Apple iPhone 7 Plus (A1661) 32G 黑色 移动联通电信4G手机
                                a>
                            p>
                            <p class="tab_PI">已有<span>11万+span>热门评价
                                <a href="/static/search/#">二手有售a>
                            p>
                            <p class="tab_CP"><a href="/static/search/#" title="谷粒商城Apple产品专营店">谷粒商城Apple产品...a>
                                <a href='#' title="联系供应商进行咨询">
                                    <img src="/static/search/img/xcxc.png">
                                a>
                            p>
                            <div class="tab_FO">
                                <div class="FO_one">
                                    <p>自营
                                        <span>谷粒商城自营,品质保证span>
                                    p>
                                    <p>满赠
                                        <span>该商品参加满赠活动span>
                                    p>
                                div>
                            div>
                        div>
                    div>
                    
                    <div class="filter_page">
                        <div class="page_wrap">
                            <span class="page_span1">
                                <a href="/static/search/#">
                                    < 上一页
                                a>
                                <a href="/static/search/#" style="border: 0;color:#ee2222;background: #fff">1a>
                                <a href="/static/search/#">2a>
                                <a href="/static/search/#">3a>
                                <a href="/static/search/#" style="border: 0;font-size: 20px;color: #999;background: #fff">...a>
                                <a href="/static/search/#">169a>
                                <a href="/static/search/#">
                                    下一页 >
                                a>
                            span>
                            <span class="page_span2">
                                <em>共<b>169b>页  到第em>
                                <input type="number" value="1">
                                <em>页em>
                                <a href="/static/search/#">确定a>
                            span>
                        div>
                    div>
                div>
            div>
        div>
    div>
div>

效果：

1.5.2、页面的筛选条件渲染

---

将结果的品牌、分类、商品属性进行遍历显示，并且点击某个属性值时可以通过拼接url进行跳转

1. 在list页面中编写一个页面跳转方法

• 分类
• 品牌
• 规格属性

<a href="/static/search/#" th:href="${'javascript:searchProducts("brandId",'+brand.brandId+')'}">
    <img th:src="${brand.brandImg}" alt="">
    <div th:text="${brand.brandName}">
        华为(HUAWEI)
    div>
a>

<li th:each="catalog:${result.ctatLogs}">
    <a href="/static/search/#"
       th:href="${'javascript:searchProducts("catalog3Id",'+catalog.catalogId+')'}"
       th:text="${catalog.catalogName}">分类a>
li>

<li th:each="val:${attr.attrValue}">
    <a href="/static/search/#"
       th:href="${'javascript:searchProducts("attrs","'+attr.attrId+'_'+val+'")'}"
       th:text="${val}">5.56英寸及以上a>
li>

function searchProducts(name,value){
    // 原来的页面
    var href = location.href + "";
    if (href.indexOf("?")!=-1) {
        location.href = location.href + "&"+name+"="+value;
    } else {
        location.href = location.href + "?"+name+"="+value;
    }
}

1.5.3、导航搜索功能

---

<div class="header_form">
    <input id="keyword_input" type="text" placeholder="手机" />
    <a href="javascript:searchByKeyword();">搜索a>
div>

function searchByKeyword() {
    searchProducts("keyword",$("#keyword_input").val());
}

之后做了修改：

function searchProducts(name,value){
location.href = replaceAndAddParamVal(location.href,"keyword",value);
}

1.5.4、页面分页数据渲染

---

<div class="filter_page">
    <div class="page_wrap">
        <span class="page_span1">
            <a class="page_a" th:attr="pn=${result.pageNum - 1}" th:if="${result.pageNum>1}">
                < 上一页
            a>
            <a class="page_a" th:attr="pn=${nav},style=${nav == result.pageNum?'border: 0;color:#ee2222;background: #fff':''}"
               th:each="nav:${result.pageNavs}">[[${nav}]]a>
            <a class="page_a" th:attr="pn=${result.pageNum + 1}" th:if="${result.pageNum">
                下一页 >
            a>
        span>
        <span class="page_span2">
            <em>共<b>[[${result.totalPages}]]b>页  到第em>
            <input type="number" value="1">
            <em>页em>
            <a class="page_submit" >确定a>
        span>
    div>
div>

$(".page_a").click(function () {
    var pn = $(this).attr("pn");
    var href = location.href;
    if (href.indexOf("pageNum")!=-1){
        // 替换pageNum的值
        location.href = replaceParamVal(href,"pageNum",pn);
    } else if (href.indexOf("?")!=-1){
        location.href = location.href + "&pageNum="+pn;
    } else {
        location.href = location.href + "?pageNum="+pn;
    }
    return false;
})

function replaceParamVal(url,paramName,replaceVal) {
    var oUrl = url.toString();
    var re=eval('/('+paramName+'=)([^&]*)/gi');
    var nUrl = oUrl.replace(re,paramName+"="+replaceVal);
    return nUrl;
}

1.5.5、页面排序功能

---

• 页面排序功能需要保证，点击某个按钮时，样式会变红，并且其他的样式保持最初的样子；

• 点击某个排序时首先按升序显示，再次点击再变为降序，并且还会显示上升或下降箭头

• 页面排序跳转的思路是通过点击某个按钮时会向其class属性添加/去除desc，并根据属性值进行url拼接

<div class="filter_top">
    <div class="filter_top_left" th:with="p = ${param.sort}">
        <a th:class="${(!#strings.isEmpty(p) && #strings.startsWith(p,'hotScore') && #strings.endsWith(p,'desc'))?'sort_a desc':'sort_a'}"
           th:attr="style=${(#strings.isEmpty(p) || #strings.startsWith(p,'hotScore'))
           ?'color: #FFF;border-color:#e4393c;background:#e4393c'
           :'color: #333;border-color:#CCC;background:#FFF'}"
           sort="hotScore" href="/static/search/#">
            综合排序[[${(!#strings.isEmpty(p) && #strings.startsWith(p,'hotScore') && #strings.endsWith(p,'desc'))?'↓':'↑'}]]
        a>
        <a th:class="${(!#strings.isEmpty(p) && #strings.startsWith(p,'saleCount') && #strings.endsWith(p,'desc'))?'sort_a desc':'sort_a'}"
           th:attr="style=${(!#strings.isEmpty(p) && #strings.startsWith(p,'saleCount'))
           ?'color: #FFF;border-color:#e4393c;background:#e4393c'
           :'color: #333;border-color:#CCC;background:#FFF'}"
           sort="saleCount" href="/static/search/#">
            销量[[${(!#strings.isEmpty(p) && #strings.startsWith(p,'saleCount') && #strings.endsWith(p,'desc'))?'↓':'↑'}]]
        a>
        <a th:class="${(!#strings.isEmpty(p) && #strings.startsWith(p,'skuPrice') && #strings.endsWith(p,'desc'))?'sort_a desc':'sort_a'}"
           th:attr="style=${(!#strings.isEmpty(p) && #strings.startsWith(p,'skuPrice'))
           ?'color: #FFF;border-color:#e4393c;background:#e4393c'
           :'color: #333;border-color:#CCC;background:#FFF'}"
           sort="skuPrice" href="/static/search/#">
            价格[[${(!#strings.isEmpty(p) && #strings.startsWith(p,'saleCount') && #strings.endsWith(p,'desc'))?'↓':'↑'}]]
        a>
        <a href="/static/search/#">评论分a>
        <a href="/static/search/#">上架时间a>
    div>
    <div class="filter_top_right">
        <span class="fp-text">
           <b>1b><em>/em><i>169i>
       span>
        <a href="/static/search/#" class="prev"><a>
        <a href="/static/search/#" class="next"> > a>
    div>
div>

function replaceAndAddParamVal(url,paramName,replaceVal) {
  var oUrl = url.toString();
  // 1、如果没有就添加，有就替换
  if (oUrl.indexOf(paramName)!=-1){
    var re=eval('/('+paramName+'=)([^&]*)/gi');
    var nUrl = oUrl.replace(re,paramName+"="+replaceVal);
    return nUrl;
  }else{
    var nUrl = "";
    if (oUrl.indexOf("?")!=-1) {
      nUrl = oUrl + "&" + paramName+"="+replaceVal;
    } else {
      nUrl = oUrl + "?" + paramName+"="+replaceVal;
    }
  }
  return nUrl;
}
$(".sort_a").click(function () {
    // 1、改变当前元素以及兄弟元素的样式
    // changeStyle(this);
    $(this).toggleClass("desc");
    // 2、跳转到指定位置
    var sort = $(this).attr("sort");
    sort = $(this).hasClass("desc")?sort+"_desc":sort+"_asc";
    location.href = replaceAndAddParamVal(location.href,"sort",sort);

    // 禁用默认行为
    return false;
});

1.5.6、页面价格区间搜索

<a href="/static/search/#">评论分a>
<a href="/static/search/#">上架时间a>
<input id="skuPriceFrom" type="number" th:value="${#strings.isEmpty(priceRange)?'':#strings.substringBefore(priceRange,'_')}" style="width: 100px; margin-left: 30px;"/> -
<input id="skuPriceTo" type="number" th:value="${#strings.isEmpty(priceRange)?'':#strings.substringAfter(priceRange,'_')}" style="width: 100px;"/>
<button id="skuPriceSearchBtn">确定button>

价格区间搜索函数:

$("#skuPriceSearchBtn").click(function () {
    // 1、拼上价格区间的查询条件
    var from = $("#skuPriceFrom").val();
    var to = $("#skuPriceTo").val();

    var query = from + "_" + to;

    location.href = replaceAndAddParamVal(location.href,"skuPrice",query);
});

1.5.7、是否只显示有库存

---

<li>
    <a href="#" th:with="check = ${param.hasStock}">
        <input id="showHasStock" type="checkbox" th:checked="${#strings.equals(check,'1')}" >
        仅显示有货
    a>
li>

$("#showHasStock").change(function () {
    if ($(this).prop('checked')){
        location.href = replaceAndAddParamVal(location.href,"hasStock",1);
    }else{
        // 没选中
        var re = eval('/(&hasStock=)([^&]*)/gi');
        location.href = (location.href+"").replace(re,'');
    }
    return false;
});

1.5.8、面包屑导航

---

1.5.8.1、后端接口编写

第一步、编写远程调用gulimall-product服务的方法

1. 定义springcloud的版本

    1.8
    7.4.2
    Greenwich.SR3

2. 添加依赖管理

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-dependenciesartifactId>
            <version>${spring-cloud.version}version>
            <type>pomtype>
            <scope>importscope>
        dependency>
    dependencies>
dependencyManagement>

3. 添加依赖

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-starter-openfeignartifactId>
dependency>

4. 修改gulimall-product中info方法Serice层实现类方法，加入缓存

@Cacheable(value = "attr",key = "'attrinfo:'+#root.args[0]")
@Override
public AttrRespVo getAttrInfo(Long attrId) {
    AttrRespVo respVo = new AttrRespVo();
    AttrEntity attrEntity = this.getById(attrId);
  	//.....
}

4. 编写接口

@FeignClient("gulimall-product")
public interface ProductFeignService {

    @GetMapping("/product/attr/info/{attrId}")
    public R attrInfo(@PathVariable("attrId") Long attrId);
}

第二步、修改检索返回信息类VO

在 SearchResult 实体类中加入面包屑导航数据

    // 面包屑导航数据
    private List<NavVO> navs;
    @Data
    public static class NavVO{
        private String navName;
        private String navValue;
        private String link;
    }

第三步、修改com.atguigu.common.utils.R类，代码如下

public <T> T getData(String key,TypeReference<T> typeReference){
   Object data = get(key);    // 默认是map
   String s = JSON.toJSONString(data);
   T t = JSON.parseObject(s, typeReference);
   return t;
}

第四步、创建一个AttrResponseVo类，接收远程查询过来的数据

@Data
public class AttrResponseVo {
    /**
     * 属性id
     */
    private Long attrId;
    /**
     * 属性名
     */
    private String attrName;
    /**
     * 是否需要检索[0-不需要，1-需要]
     */
    private Integer searchType;
    /**
     * 值类型[0-为单个值，1-可以选择多个值]
     */
    private Integer valueType;
    /**
     * 属性图标
     */
    private String icon;
    /**
     * 可选值列表[用逗号分隔]
     */
    private String valueSelect;
    /**
     * 属性类型[0-销售属性，1-基本属性，2-既是销售属性又是基本属性]
     */
    private Integer attrType;
    /**
     * 启用状态[0 - 禁用，1 - 启用]
     */
    private Long enable;
    /**
     * 所属分类
     */
    private Long catelogId;
    /**
     * 快速展示【是否展示在介绍上；0-否 1-是】，在sku中仍然可以调整
     */
    private Integer showDesc;

    private Long attrGroupId;

    /**
     *           "catelogName": "手机/数码/手机", //所属分类名字
     *           "groupName": "主体", //所属分组名字
     */
    private String catelogName;
    private String groupName;

    private Long[] catelogPath;
}

第五步、修改Controller类

@GetMapping("/list.html")
public String listPage(SearchParam param, Model model, HttpServletRequest request){

    param.set_queryString(request.getQueryString());
    // 1、根据传递过来的页面的查询参数，去es中检索商品
    SearchResult result = mallSearchService.search(param);
    model.addAttribute("result",result);
    return "list";
}

第六步、Searvice实现类方法修改

MallSearchServiceImpl实现类的buildSearchResult方法下：

if (param.getAttrs()!=null && param.getAttrs().size()>0 ) {
  List<SearchResult.NavVO> navVOs = param.getAttrs().stream().map(attr -> {
    // 1、分析每一个attrs传过来的查询参数值
    SearchResult.NavVO navVO = new SearchResult.NavVO();
    String[] s = attr.split("_");
    navVO.setNavValue(s[1]);
    R r = productFeignService.attrInfo(Long.parseLong(s[0]));
    if (r.getCode()==0) {
      AttrResponseVo data = r.getData("attr", new TypeReference<AttrResponseVo>() {
      });
      navVO.setNavName(data.getAttrName());
    } else {
      navVO.setNavName(s[0]);
    }
    // 2、取消了这个面包屑以后，我们要跳转到哪个地方。将请求地址的url里面的当前条件置空
    // 拿到所有的查询条件，去掉当前。
    String encode = null;
    try {
      encode = URLEncoder.encode(attr, "UTF-8");
      encode = encode.replace("+", "%20"); // 浏览器对空格的编码和Java不一样
    } catch (UnsupportedEncodingException e) {
      e.printStackTrace();
    }
    String replace = param.get_queryString().replace("&attrs=" + encode, "");
    navVO.setLink("http://search.gulimall.cn/list.html?"+replace);
    return navVO;
  }).collect(Collectors.toList());
  result.setNavs(navVOs);
}

1.5.8.2、前端渲染

---

<div class="JD_ipone_one c">
    <a th:href="${nav.link}" th:each="nav:${result.navs}">
      <span th:text="${nav.navName}">span>
      <span>：span>
      <span th:text="${nav.navValue}">span>
      x
    a>
div>

1.5.8.3、面包屑导航【条件筛选联动】

---

1.5.8.3.1、gulimall-product服务查询品牌接口

第一步、编写Controller层方法

@GetMapping("/infos")
public R info(@RequestParam("brandIds") List<Long> brandIds){
    List<BrandEntity> brand = brandService.getBrandsByIds(brandIds);

    return R.ok().put("brand", brand);
}

第二步、Service层实现类编写

@Override
public List<BrandEntity> getBrandsByIds(List<Long> brandIds) {
    return baseMapper.selectList(new QueryWrapper<BrandEntity>().in("brandId", brandIds));
}

第三步、gulimall-search服务中编写Feign接口

@FeignClient("gulimall-product")
public interface ProductFeignService {

    @GetMapping("/product/brand/infos")
    public R brandsInfo(@RequestParam("brand_id") List<Long> brandIds);
}

1.5.8.3.2、接口实现类编写

---

MallSearchServiceImpl 实现类的中的buildSearchResult方法

// 7、品排、分类
if (param.getBrandId()!=null && param.getBrandId().size()>0) {
    List<SearchResult.NavVO> navs = result.getNavs();
    SearchResult.NavVO navVO = new SearchResult.NavVO();
    navVO.setNavName("品牌");
    // TODO 远程查询所有品牌
    R r = productFeignService.brandsInfo(param.getBrandId());
    if (r.getCode()==0) {
        List<BrandVo> brand = r.getData("brand", new TypeReference<List<BrandVo>>() {
        });
        StringBuffer buffer = new StringBuffer();
        String replace = "";
        for (BrandVo brandVo : brand) {
            buffer.append(brandVo.getBrandName()+";");
            replace = replaceQueryString(param, brandVo.getBrandId()+"" ,"brandId");
        }
        navVO.setNavValue(buffer.toString());
        navVO.setLink("http://search.gulimall.cn/list.html?"+replace);
    }
    navs.add(navVO);
}
private String replaceQueryString(SearchParam param, String value,String key) {
  String encode = null;
  try {
    encode = URLEncoder.encode(value, "UTF-8");
    encode = encode.replace("+", "%20"); // 浏览器对空格的编码和Java不一样
  } catch (UnsupportedEncodingException e) {
    e.printStackTrace();
  }
  String replace = param.get_queryString().replace("&"+key+"=" + encode, "");
  return replace;
}

1.5.8.3.3、前端页面渲染

---

<div class="JD_nav_logo" th:with="brandid = ${param.brandId}">
    
    <div th:if="${#strings.isEmpty(brandid)}" class="JD_nav_wrap">
        <div class="sl_key">
            <span><b>品牌：b>span>
        div>
        <div class="sl_value">
            <div class="sl_value_logo">
                <ul>
                    <li th:each="brand:${result.brands}">
                        <a href="/static/search/#" th:href="${'javascript:searchProducts("brandId",'+brand.brandId+')'}">
                            <img th:src="${brand.brandImg}" alt="">
                            <div th:text="${brand.brandName}">
                                华为(HUAWEI)
                            div>
                        a>
                    li>
                ul>
            div>
        div>
        <div class="sl_ext">
            <a href="/static/search/#">
                更多
                <i style='background: url("image/search.ele.png")no-repeat 3px 7px'>i>
                <b style='background: url("image/search.ele.png")no-repeat 3px -44px'>b>
            a>
            <a href="/static/search/#">
                多选
                <i>+i>
                <span>+span>
            a>
        div>
    div>
    
    <div class="JD_pre">
        <div class="sl_key">
            <span><b>分类：b>span>
        div>
        <div class="sl_value">
            <ul>
                <li th:each="catalog:${result.ctatLogs}">
                    <a href="/static/search/#"
                       th:href="${'javascript:searchProducts("catalog3Id",'+catalog.catalogId+')'}"
                       th:text="${catalog.catalogName}">分类a>
                li>
            ul>
        div>
        <div class="sl_ext">
            <a href="/static/search/#">
                更多
                <i style='background: url("image/search.ele.png")no-repeat 3px 7px'>i>
                <b style='background: url("image/search.ele.png")no-repeat 3px -44px'>b>
            a>
            <a href="/static/search/#">
                多选
                <i>+i>
                <span>+span>
            a>
        div>
    div>
    
    <div class="JD_pre" th:each="attr:${result.attrs}" th:if="${!#lists.contains(result.attrIds,attr.attrId)}">
        <div class="sl_key">
            <span th:text="${attr.attrName}">屏幕尺寸：span>
        div>
        <div class="sl_value">
            <ul>
                <li th:each="val:${attr.attrValue}">
                    <a href="/static/search/#"
                       th:href="${'javascript:searchProducts("attrs","'+attr.attrId+'_'+val+'")'}"
                       th:text="${val}">5.56英寸及以上a>
                li>
            ul>
        div>
    div>
div>