谷粒商城检索服务(三十)
173、商城业务-检索服务-搭建页面环境 - 192、商城业务-检索服务-条件筛选联动
敲完代码,感觉ES的复杂查询还不是很熟练,不过应用的也比较简单,权重和分词都没有应用到,ES后面要在好好学习,在把功能完善一下,下面就简单的贴出点代码。
web层
/**
* @author WGR
* @create 2020/6/29 -- 19:53
*/
@Controller
public class SearchController {
@Autowired
private MallSearchService mallSearchService;
@GetMapping("/list.html")
public String listPage(SearchParam param, Model model, HttpServletRequest request){
String queryString = request.getQueryString();
param.set_queryString(queryString);
SearchResult result = mallSearchService.search(param);
model.addAttribute("result",result);
return "list";
}
}
service层
/**
* @author WGR
* @create 2020/6/29 -- 21:00
*/
@Service
@Slf4j
public class MallSearchServiceImpl implements MallSearchService {
@Autowired(required = false)
private RestHighLevelClient client;
@Autowired(required = false)
ProductFeignService productFeignService;
@Override
public SearchResult search(SearchParam param) {
SearchResult result = null;
//1.准备检索请求
SearchRequest searchRequest = buildSearchRequest(param);
try {
SearchResponse response = client.search(searchRequest, GulimallElasticSearchConfig.COMMON_OPTIONS);
result = buildSearchResult(response,param);
} catch (IOException e) {
e.printStackTrace();
}
log.info("{}",result);
return result;
}
public SearchResult buildSearchResult(SearchResponse response,SearchParam param) {
SearchResult result = new SearchResult();
SearchHits hits = response.getHits();
//返回所有查询的结果
List esModels = new ArrayList<>();
if(hits.getHits() !=null && hits.getHits().length > 0){
for(SearchHit hit: hits.getHits()){
String source = hit.getSourceAsString();
SkuEsModel skuEsModel = JSON.parseObject(source, SkuEsModel.class);
if(!StringUtils.isEmpty(param.getKeyword())){
HighlightField skuTitle = hit.getHighlightFields().get("skuTitle");
String string = skuTitle.getFragments()[0].string();
skuEsModel.setSkuTitle(string);
}
esModels.add(skuEsModel);
}
}
result.setProducts(esModels);
//2 当前所有商品涉及到的所有属性信息
List attrVos = new ArrayList<>();
ParsedNested attr_agg = response.getAggregations().get("attr_agg");
ParsedLongTerms attr_id_agg = attr_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 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 当前所有商品涉及到的所有品牌信息
List 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id
long brandId = bucket.getKeyAsNumber().longValue();
//2. 得到品牌名
String brandName = ((ParsedStringTerms) bucket.getAggregations().get("brand_name_agg")).getBuckets().get(0).getKeyAsString();
String brandImg = ((ParsedStringTerms) bucket.getAggregations().get("brand_img_agg")).getBuckets().get(0).getKeyAsString();
brandVo.setBrandId(brandId);
brandVo.setBrandName(brandName);
brandVo.setBrandImg(brandImg);
brandVos.add(brandVo);
}
result.setBrands(brandVos);
//4 当前所有商品涉及到的所有分类信息
ParsedLongTerms catalog_agg = response.getAggregations().get("catalog_agg");
List catalogVos = new ArrayList<>();
List extends Terms.Bucket> buckets = catalog_agg.getBuckets();
for (Terms.Bucket bucket : buckets) {
SearchResult.CatalogVo catalogVo = new SearchResult.CatalogVo();
String keyAsString = bucket.getKeyAsString();
catalogVo.setCatalogId(Long.parseLong(keyAsString));
//得到分类名
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.setCatalogs(catalogVos);
//5.分页信息-总页数-计算 11/2
result.setPageNum(param.getPageNum());
long total = hits.getTotalHits().value;
result.setTotal(total);
//5. 分页信息-总页码-计算 11/2 =
int totalPages = ((int) total % EsConstant.PRODUCT_PAGESIZE) == 0 ? ((int) total / EsConstant.PRODUCT_PAGESIZE) : ((int) total / EsConstant.PRODUCT_PAGESIZE + 1);
result.setTotalPages(totalPages);
List pageNavs = new ArrayList<>();
for (int i = 1; i 0){
List collect = param.getAttrs().stream().map(attr ->{
SearchResult.NavVo navVo = new SearchResult.NavVo();
String[] s = attr.split("_");
navVo.setNavValue(s[1]);
R r = productFeignService.attrInfo(Long.parseLong(s[0]));
result.getAttrIds().add(Long.parseLong(s[0]));
if(r.getCode() ==0 ){
AttrResponseVo data = r.getData("attr", new TypeReference() {
});
navVo.setNavName(data.getAttrName());
}else{
navVo.setNavName(s[0]);
}
String replace = replaceQueryString(param, attr,"attrs");
navVo.setLink("http://search.gulimall.com/list.html?"+replace);
System.out.println(navVo.getLink());
return navVo;
}).collect(Collectors.toList());
result.setNavs(collect);
}
if(param.getBrandId()!=null && param.getBrandId().size()>0){
List navs = result.getNavs();
SearchResult.NavVo navVo = new SearchResult.NavVo();
navVo.setNavName("品牌");
R r = productFeignService.brandsInfo(param.getBrandId());
if(r.getCode() ==0 ){
System.out.println(r);
List brand = r.getData("brand", new TypeReference>() {
});
StringBuffer sb = new StringBuffer();
String replace ="";
for (BrandVo brandVo : brand) {
sb.append(brandVo.getName()+";");
replace = replaceQueryString(param, brandVo.getBrandId()+"","brandId");
}
navVo.setNavValue(sb.toString());
navVo.setLink("http://search.gulimall.com/list.html?"+replace);
}
navs.add(navVo);
}
return result;
}
private String replaceQueryString(SearchParam param, String value,String key) {
String encode = null;
try {
encode = URLEncoder.encode(value,"UTF-8");
encode = encode.replace("+","%20"); //浏览器差异
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return param.get_queryString().replace("&"+key+"="+encode,"");
}
/**
* 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
* @param param
* @return
*/
private SearchRequest buildSearchRequest(SearchParam param) {
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
/**
* 模糊匹配,过滤(按照属性,分类,品牌,价格区间,库存)
*/
BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
//MUST的模糊匹配
if(StringUtils.isNotBlank(param.getKeyword())){
boolQuery.must(QueryBuilders.matchQuery("skuTitle",param.getKeyword()));
}
//filter 按照三级分类id查询
if(param.getCatalog3Id() !=null){
boolQuery.filter(QueryBuilders.termQuery("catalogId",param.getCatalog3Id()));
}
//按照品牌id查询
if(param.getBrandId() !=null && param.getBrandId().size()>0){
boolQuery.filter(QueryBuilders.termsQuery("brandId",param.getBrandId()));
}
//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()){
BoolQueryBuilder nestedboolQuery = QueryBuilders.boolQuery();
String[] s = attrStr.split("_");
String attrId = s[0];
String[] attrValues = s[1].split(":");
nestedboolQuery.must(QueryBuilders.termsQuery("attrs.attrId",attrId));
nestedboolQuery.must(QueryBuilders.termsQuery("attrs.attrValue",attrValues));
NestedQueryBuilder nestedQuery = QueryBuilders.nestedQuery("attrs", nestedboolQuery, ScoreMode.None);
boolQuery.filter(nestedQuery);
}
}
//根据库存来查
if(param.getHasStock()!=null){
boolQuery.filter(QueryBuilders.termQuery("hasStock",param.getHasStock()==1));
}
if(StringUtils.isNotBlank(param.getSkuPrice())){
RangeQueryBuilder rangeQuery = QueryBuilders.rangeQuery("skuPrice");
String[] s = param.getSkuPrice().split("_");
if(s.length == 2){
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]);
}
}
boolQuery.filter(rangeQuery);
}
sourceBuilder.query(boolQuery);
//排序,分页,高亮
// 排序
if(StringUtils.isNotBlank(param.getSort())){
String sort = param.getSort();
String[] s = sort.split("_");
SortOrder order = s[1].equalsIgnoreCase("asc") ? SortOrder.ASC : SortOrder.DESC;
sourceBuilder.sort(s[0],order);
}
sourceBuilder.from((param.getPageNum()-1)* EsConstant.PRODUCT_PAGESIZE);
sourceBuilder.size(EsConstant.PRODUCT_PAGESIZE);
//高亮
if(StringUtils.isNotBlank(param.getKeyword())){
HighlightBuilder builder = new HighlightBuilder();
builder.field("skuTitle");
builder.preTags("");
builder.postTags("");
sourceBuilder.highlighter(builder);
}
//聚合
TermsAggregationBuilder brand_agg = AggregationBuilders.terms("brand_agg");
brand_agg.field("brandId").size(50);
//品牌聚合的子聚合
brand_agg.subAggregation(AggregationBuilders.terms("brand_name_agg").field("brandName").size(1));
brand_agg.subAggregation(AggregationBuilders.terms("brand_img_agg").field("brandImg").size(1));
sourceBuilder.aggregation(brand_agg);
//分类聚合 catalog_agg
TermsAggregationBuilder catalog_agg = AggregationBuilders.terms("catalog_agg").field("catalogId").size(20);
catalog_agg.subAggregation(AggregationBuilders.terms("catalog_name_agg").field("catalogName").size(1));
sourceBuilder.aggregation(catalog_agg);
//属性聚合
NestedAggregationBuilder attr_agg = AggregationBuilders.nested("attr_agg", "attrs");
TermsAggregationBuilder attr_id_agg = AggregationBuilders.terms("attr_id_agg").field("attrs.attrId");
attr_id_agg.subAggregation(AggregationBuilders.terms("attr_name_agg").field("attrs.attrName").size(1));
attr_id_agg.subAggregation(AggregationBuilders.terms("attr_value_agg").field("attrs.attrValue").size(50));
attr_agg.subAggregation(attr_id_agg);
sourceBuilder.aggregation(attr_agg);
String s = sourceBuilder.toString();
log.info(s);
SearchRequest searchRequest = new SearchRequest(new String[]{EsConstant.PRODUCT_INDEX},sourceBuilder);
return searchRequest;
}
}
Fegin层
/**
* @author WGR
* @create 2020/7/1 -- 22:46
*/
@FeignClient("gulimall-product")
public interface ProductFeignService {
@GetMapping("/product/attr/info/{attrId}")
public R attrInfo(@PathVariable("attrId") Long attrId);
@RequestMapping("/product/brand/infos")
public R brandsInfo(@RequestParam("brandIds") List brandIds);
}
html
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