会员版2.0-就业课程搜索102服务

学成-第11天-讲义-搜索服课程搜索需求2、根据关键字搜索课程信息，搜索方式为全文检索，关键字需要匹配课程的名称、课程内容4、搜索结点分页显示全文检索技术课程索如何课程索引信息创建课程发布创建课程发布表模在课程管理服务创建模型privateprivateDatetimestamp;//privateString n;//privateStringpubTime;//修改课程发在课程管理服务定义2)修改课程发布////保存Optional<CoursePub>coursePubOptional=//更新时间戳 时SimpleDateFormatSimpleDateFormatsimpleDateFormat=newSimpleDateFormat("YYYY‐MM‐ddStringdate=simpleDateFormat.format(newDate());return}//创建coursePubprivateCoursePubid){CoursePubcoursePub=newCoursePub();//Optional<CourseBase>courseBaseOptional=courseBaseRepository.findById(id);if(courseBaseOptional==null){CourseBasecourseBase=courseBaseOptional.get();BeanUtils.copyProperties(courseBase,}//Optional<CoursePic>picOptional=coursePicRepository.findById(id);CoursePiccoursePic=picOptional.get();BeanUtils.copyProperties(coursePic,coursePub);}//课 信Optional<CourseMarket>marketOptional=courseMarketRepository.findById(id);CourseMarketcourseMarket=marketOptional.get();BeanUtils.copyProperties(courseMarket,coursePub);}// nNode nNode= //将课程计划转成String nString= return}////课程发publicCoursePublishResultpublish(String//创建课程索//创建课程索引信//向数据库保存课程索引搭建ESES 创建索引创建索引创建映Postcourse/doc/map yzer":"ik_max_word", yzer":"ik_smart","type":"users":"index":false,"type":"charge":"type":"valid":"type":"pic":"index":false,"type":"keyword""qq":"index":false,"type":"keyword""price":"type":"price_old":"type":"st":"type":"status":"type":"studymodel"{"type": ode":"type": n": yzer":"ik_max_word", yzer":"ik_smart","type":"expires":"type":"date","format":"yyyy‐MM‐ddHH:mm:ss""pub_time":"type":"date","format":"yyyy‐MM‐ddHH:mm:ss"Logstash是ES下的一款开源软件，它能够同时从多个来源数据、转换数据，然后将数据发送到Eleasticsearch解压安装logstash-input-logstash-input-jdbc是ruby开发的，先ruby并安装地址:安装完成查看是否安装成 下的以 创建模板文 本的xc_course_tem yzer":"ik_max_word", yzer":"ik_smart","type":"text""pic":"index":false,"type":"keyword""price":"type":"price_old":"type":"pub_time":"format":"yyyy‐MM‐ddHH:mm:ss","type":"date""qq":"index":false,"type":"keyword""st":"type":"start_time":"format":"yyyy‐MM‐ddHH:mm:ss","type":"date""status":"type":"studymodel"{"type": ode":"type": n": yzer":"ik_max_word", yzer":"ik_smart","type":"text""users":{"index":false,"type":"valid":"type":}}}配置 参考#定时配#ES的ip地址和口 te #说明ES采用UTC时区，比时间早8小时，所以ES数据时让最后更新时间加8小wheretimestamp>date_add(:sql_last_value,INTERVAL82、osash每个执行完成会在DElsicSacosash-./confilosts_meada记录执行时间下次以此时间为基准进行增量同步数据到索引库。测启动课程搜2、根据关键字搜索课程信息，搜索方式为全文检索，关键字需要匹配课程的名称、课程内容1、根据关键字搜索，采用MultiMatchQuery，搜索name、description、teachn配hostlist:hostlist::9200#多个结点中间用 importimportimportpublicclassElasticsearchConfigprivateStringhostlist;public//解析hostlistString[]split=//创建HttpHost数组，其中存放esHttpHost[]httpHostArray=newHttpHost[split.length];for(inti=0;i<split.length;i++){Stringitem=httpHostArray[i]=newHttpHost(item.split(":")[0],Integer.parseInt(item.split(":")[1]),"http");}//创建 客户returnnew }public//解析hostlistString[]split=//创建HttpHost数组，其中存放esHttpHost[]httpHostArray=newHttpHost[split.length];for(inti=0;i<split.length;i++){Stringitem=httpHostArray[i]=newHttpHost(item.split(":")[0],Integer.parseInt(item.split(":")[1]),"http");}return }}@ApiOperation("@ApiOperation("课程搜索publicQueryResponseResult<CoursePub>list(intpage,intCourseSearchParamcourseSearchParam)throws按关键字搜在appliction.yml中配置hostlist:hostlist::9200#多个结点中间用 service完整代码如;publicQueryResponseResult<CoursePub>list(intpage,intcourseSearchParam)//设置索SearchRequestsearchRequest=new//SearchSourceBuildersearchSourceBuilder=newSearchSourceBuilder();BoolQueryBuilderboolQueryBuilder=QueryBuilders.boolQuery();//source源字段String[]source_fields=source_field.split(",");searchSourceBuilder.fetchSource(source_fields,newString[]{});//关键//匹配关键MultiMatchQueryBuildermultiMatchQueryBuilder=QueryBuilders.multiMatchQuery(courseSearchParam.getKeyword(),"name", //设置匹配占//提升另个字段的Boost}////SearchResponsesearchResponse=null;try{searchResponse= }catch(IOException{;LOGGER.error("xuechengsearchreturnnewQueryResponseResult(CommonCode.SUCCESS,new}//结果集处SearchHitshits=searchResponse.getHits();SearchHit[]searchHits=hits.getHits();//记录总longtotalHits=//数据列List<CoursePub>list=newfor(SearchHithit:{CoursePubcoursePub=new//取出Map<String,Object>sourceAsMap=//取出名Stringname=(String)sourceAsMap.get("name");Stringname=(String)sourceAsMap.get("name");Stringpic=(String)sourceAsMap.get("pic");//Floatprice=null;try{if(sourceAsMap.get("price")!=nullprice=Float.parseFloat((String)}}catch(Exception{}Floatprice_old=null;try{if(sourceAsMap.get("price_old")!=nullprice_old=Float.parseFloat((String)}}catch(Exception{}}QueryResult<CoursePub>queryResult=newQueryResult<>();QueryResponseResult<CoursePub>coursePubQueryResponseResult=newreturn}按分类和难度等级搜按分类和难度等级搜索代码如下privateStringsource_field; publicQueryResponseResult<CoursePub>list(intpage,intsize,CourseSearchParamcourseSearchParam){//设置索SearchRequestsearchRequest=new//SearchSourceBuildersearchSourceBuilder=newSearchSourceBuilder();BoolQueryBuilderboolQueryBuilder=QueryBuilders.boolQuery();//source源字段String[]source_fields=source_field.split(",");searchSourceBuilder.fetchSource(source_fields,newString[]{});//关键//匹配关键MultiMatchQueryBuildermultiMatchQueryBuilder=QueryBuilders.multiMatchQuery(courseSearchParam.getKeyword(),"name", //设置匹配占//提升另个字段的Boost}}if(StringUtils.isNotEmpty(courseSearchParam.getSt())){boolQueryBuilder.filter(QueryBuilders.t}}//SearchResponsesearchResponse=null;trysearchResponse= }catch(IOException{;LOGGER.error("xuechengsearchreturnnewQueryResponseResult(CommonCode.SUCCESS,new}//结果集处SearchHitshits=searchResponse.getHits();SearchHit[]searchHits=hits.getHits();//记录总longtotalHits=//数据列List<CoursePub>list=newfor(SearchHithit:{CoursePubcoursePub=new//取出Map<String,Object>sourceAsMap=//取出名Stringname=(String)Stringpic=(String)sourceAsMap.get("pic");//Floatprice=null;try{if(sourceAsMap.get("price")!=nullprice=Float.parseFloat((String)}}catch(Exception{}Floatprice_old=null;try{if(sourceAsMap.get("price_old")!=nullprice_old=Float.parseFloat((String)}}catch(Exception{}}QueryResult<CoursePub>queryResult=newQueryResult<>();QueryResponseResult<CoursePub>coursePubQueryResponseResult=newreturn分页与高publicclassEsCourseServiceprivatestaticfinalLoggerLOGGER=privateStringes_index;privateStringes_type;privateStringsource_field; publicQueryResponseResult<CoursePub>list(intpage,intsize,CourseSearchParamcourseSearchParam){//设置索SearchRequestsearchRequest=new//SearchSourceBuildersearchSourceBuilder=newSearchSourceBuilder();BoolQueryBuilderboolQueryBuilder=QueryBuilders.boolQuery();//source源字段String[]source_fields=source_field.split(",");searchSourceBuilder.fetchSource(source_fields,newString[]{});//关键//匹配关键MultiMatchQueryBuildermultiMatchQueryBuilder=QueryBuilders.multiMatchQuery(courseSearchParam.getKeyword(),"name", //设置匹配占//提升另个字段的Boost}}}}page=}size=}intstart=(page‐1)*size;//布尔查//高亮设HighlightBuilderhighlightBuilder=newHighlightBuilder();highlightBuilder.preTags("<fontclass='eslight'>");//设置高亮字highlightBuilder.fields().add(newHighlightBuilder.Field("name"));//请求搜SearchResponsesearchResponse=null;try{searchResponse= }catch(IOException{;LOGGER.error("xuechengsearchreturnnewQueryResponseResult(CommonCode.SUCCESS,new}//结果集处SearchHitshits=searchResponse.getHits();SearchHit[]searchHits=hits.getHits();//记录总longtotalHits=//数据列List<CoursePub>list=newfor(SearchHithit:{CoursePubcoursePub=n