网站平台建设缴纳什么税,做网站一台电脑可以吗,商超网站,电商小程序模板目录 一.引入依赖 二.配置链接信息 三.索引库测试
1.创建索引库
2.查询索引库
3.删除索引库
四.文档测试
1.添加文档
2.修改文档
3.删除文档
4.查询具体文档
5.批量添加文档
五.查询测试 1.查询所有
2.根据属性term匹配查询
3.分页查询
4.排序
5.过滤属性
6.boo…目录 一.引入依赖 二.配置链接信息 三.索引库测试
1.创建索引库
2.查询索引库
3.删除索引库
四.文档测试
1.添加文档
2.修改文档
3.删除文档
4.查询具体文档
5.批量添加文档
五.查询测试 1.查询所有
2.根据属性term匹配查询
3.分页查询
4.排序
5.过滤属性
6.bool查询
7.范围查询
8.模糊查询
9.高亮查询 10.聚合查询 10.1最大年龄
10.2分组查询 一.引入依赖 dependenciesdependencygroupIdorg.elasticsearch/groupIdartifactIdelasticsearch/artifactIdversion7.8.0/version/dependency!--es的客户端--dependencygroupIdorg.elasticsearch.client/groupIdartifactIdelasticsearch-rest-high-level-client/artifactIdversion7.8.0/version/dependency/dependencies 二.配置链接信息
#自定义elasticsearch连接配置
elasticsearch:host: 192.168.81.128port: 9200
Getter
Setter
Configuration
ConfigurationProperties(prefix elasticsearch)
public class ElasticSearchConfig {private String host;private int port;Beanpublic RestHighLevelClient client(){return new RestHighLevelClient(RestClient.builder(new HttpHost(host, port, http)));}
} 三.索引库测试
1.创建索引库 /*** 添加索引库*/Testpublic void AddIndex() throws IOException {//创建索引库CreateIndexRequest request new CreateIndexRequest(user);//获取响应CreateIndexResponse response restHighLevelClient.indices().create(request,RequestOptions.DEFAULT);boolean acknowledged response.isAcknowledged();System.out.println(响应状态:acknowledged);}
2.查询索引库
//查询索引库Testpublic void testGetIndex() throws IOException {GetIndexRequest request new GetIndexRequest(user);GetIndexResponse response restHighLevelClient.indices().get(request, RequestOptions.DEFAULT);//System.out.println(response.getAliases());//获取默认配置System.out.println(response.getDefaultSettings());//获取索引名称System.out.println(Arrays.toString(response.getIndices()));//获取映射System.out.println(response.getMappings());}3.删除索引库
/*** 删除索引库*/Testpublic void testDeleteIndex() throws IOException {//删除索引请求DeleteIndexRequest request new DeleteIndexRequest(user);AcknowledgedResponse response restHighLevelClient.indices().delete(request,RequestOptions.DEFAULT);System.out.println(response.isAcknowledged());restHighLevelClient.close();}
四.文档测试
1.添加文档
/*** 添加文档*/Testpublic void testAddDoucument() throws IOException {/*** 第一次不存在时是创建* 第二次存在时就是修改将修改version版本号*/IndexRequest indexRequest new IndexRequest(user);indexRequest.id(122);User user new User();user.setId(122);user.setName(张三);user.setAge(12);user.setScore(123);//添加数据indexRequest.source(JSON.toJSONString(user), XContentType.JSON);IndexResponse response restHighLevelClient.index(indexRequest, RequestOptions.DEFAULT);//获取索引库idSystem.out.println(response.getIndex());//获取文档idSystem.out.println(response.getId());//获取版本System.out.println(response.getVersion());//获取结果System.out.println(response.getResult());}
2.修改文档
/*** 修改文档*/Testpublic void testUpadteDoc() throws IOException {UpdateRequest updateRequest new UpdateRequest(user,122);User user new User();user.setId(122);user.setName(张三);user.setAge(13);user.setScore(123);updateRequest.doc(JSON.toJSONString(user), XContentType.JSON);UpdateResponse res restHighLevelClient.update(updateRequest, RequestOptions.DEFAULT);System.out.println(res.getId());System.out.println(res.getIndex());System.out.println(res.getResult());System.out.println(res.getVersion());restHighLevelClient.close();}
3.删除文档
/*** 删除文档*/Testpublic void testDelteDoc() throws IOException {DeleteRequest deleteRequest new DeleteRequest(user,122);DeleteResponse res restHighLevelClient.delete(deleteRequest, RequestOptions.DEFAULT);System.out.println(res.getId());System.out.println(res.getIndex());System.out.println(res.getResult());}
4.查询具体文档 /*** 查询文档*/Testpublic void testGetDoc() throws IOException {GetRequest getRequest new GetRequest(user,122);GetResponse res restHighLevelClient.get(getRequest, RequestOptions.DEFAULT);System.out.println(res.getIndex());System.out.println(res.getId());System.out.println(res.getSource());System.out.println(res.getFields());System.out.println(res.getSourceAsString()); //返回json串
// user
// 122
// {score123, name张三, id122, age12}
// {}
// {age:12,id:122,name:张三,score:123}}
5.批量添加文档 /*** 批量添加文档*/Testpublic void testBulkAdd() throws IOException {User user1 new User(1,王五,12,213);User user2 new User(2,李四,321,213);User user3 new User(3,赵六,24,213);User user4 new User(4,zhangsan,41,213);User user5 new User(5,蔡徐坤,21,213);BulkRequest request new BulkRequest(user);IndexRequest request1 new IndexRequest(user).id(user1.getId().toString());request1.source(JSON.toJSONString(user1),XContentType.JSON);IndexRequest request2 new IndexRequest(user).id(user2.getId().toString());request2.source(JSON.toJSONString(user2),XContentType.JSON);IndexRequest request3 new IndexRequest(user).id(user3.getId().toString());request3.source(JSON.toJSONString(user3),XContentType.JSON);IndexRequest request4 new IndexRequest(user).id(user4.getId().toString());;request4.source(JSON.toJSONString(user4),XContentType.JSON);IndexRequest request5 new IndexRequest(user).id(user5.getId().toString());request5.source(JSON.toJSONString(user5),XContentType.JSON);request.add(request1);request.add(request2);request.add(request3);request.add(request4);request.add(request5);BulkResponse res restHighLevelClient.bulk(request, RequestOptions.DEFAULT);System.out.println(res.getIngestTook());System.out.println(res.getTook());System.out.println(res.getIngestTookInMillis());}五.查询测试 1.查询所有 /*** 查询所有*/Testpublic void testqueryAll() throws IOException {SearchRequest searchRequest new SearchRequest();//指定索引库searchRequest.indices(user);SearchSourceBuilder sourceBuilder new SearchSourceBuilder();//查询所有sourceBuilder.query(QueryBuilders.matchAllQuery());searchRequest.source(sourceBuilder);SearchResponse res client.search(searchRequest, RequestOptions.DEFAULT);//查询匹配SearchHits hits res.getHits();System.out.println(took res.getTook());System.out.println(是否超时 res.isTimedOut());System.out.println(TotalHits hits.getTotalHits());System.out.println(MaxScore hits.getMaxScore());for (SearchHit hit : hits) {System.out.println(hit.getSourceAsString());}}
2.根据属性term匹配查询
/*** 根据term条件查询* throws IOException*/Testpublic void testTermQuery() throws IOException {SearchRequest request new SearchRequest();request.indices(user);//构建查询的请求体SearchSourceBuilder sourceBuilder new SearchSourceBuilder();//查询所有对象sourceBuilder.query(QueryBuilders.termQuery(name,zhangsan));request.source(sourceBuilder);SearchResponse response client.search(request, RequestOptions.DEFAULT);//查询匹配SearchHits hits response.getHits();System.out.println(took response.getTook());System.out.println(是否超时 response.isTimedOut());System.out.println(TotalHits hits.getTotalHits());System.out.println(MaxScore hits.getMaxScore());for (SearchHit hit : hits) {System.out.println(hit.getSourceAsString());}}3.分页查询 /*** 分页查询*/Testpublic void testPageQuery() throws IOException {SearchRequest request new SearchRequest();request.indices(user);//构建查询的请求体SearchSourceBuilder sourceBuilder new SearchSourceBuilder();//查询所有对象sourceBuilder.query(QueryBuilders.matchAllQuery());//第一页sourceBuilder.from(0);//三条记录sourceBuilder.size(11);request.source(sourceBuilder);//添加分页信息SearchResponse response client.search(request, RequestOptions.DEFAULT);//查询匹配SearchHits hits response.getHits();System.out.println(took response.getTook());System.out.println(是否超时 response.isTimedOut());System.out.println(TotalHits hits.getTotalHits());System.out.println(MaxScore hits.getMaxScore());for (SearchHit hit : hits) {System.out.println(hit.getSourceAsString());}}4.排序 //年龄排序 倒序从大到小sourceBuilder.sort(age, SortOrder.DESC);
5.过滤属性
//查询过滤字段String[] excludes {age};//过滤掉age属性String[] includes {};sourceBuilder.fetchSource(includes,excludes);6.bool查询 //创建搜索对象SearchRequest request new SearchRequest();request.indices(user);//构建查询的请求体SearchSourceBuilder sourceBuilder new SearchSourceBuilder();BoolQueryBuilder boolQuery QueryBuilders.boolQuery();//必须包含boolQuery.must(QueryBuilders.matchQuery(age,18));//一定不包含boolQuery.mustNot(QueryBuilders.matchQuery(name,lisi));//可能包含boolQuery.should(QueryBuilders.matchQuery(name,zhangsan));//查询所有对象sourceBuilder.query(boolQuery);request.source(sourceBuilder);SearchResponse response client.search(request, RequestOptions.DEFAULT);7.范围查询 //创建搜索对象SearchRequest request new SearchRequest();request.indices(user);//构建查询的请求体SearchSourceBuilder sourceBuilder new SearchSourceBuilder();//范围查询RangeQueryBuilder rangeQuery QueryBuilders.rangeQuery(age);//大于等于rangeQuery.gte(19);//小于等于rangeQuery.lte(40);//查询所有对象sourceBuilder.query(rangeQuery);request.source(sourceBuilder);SearchResponse response client.search(request, RequestOptions.DEFAULT);8.模糊查询
//创建搜索对象SearchRequest request new SearchRequest();request.indices(user);//构建查询的请求体SearchSourceBuilder sourceBuilder new SearchSourceBuilder();//模糊查询FuzzyQueryBuilder fuzzyQuery QueryBuilders.fuzzyQuery(name, zhangsan);fuzzyQuery.fuzziness(Fuzziness.ONE);sourceBuilder.query(fuzzyQuery);request.source(sourceBuilder);SearchResponse response client.search(request, RequestOptions.DEFAULT);
9.高亮查询
//高亮查询SearchRequest request new SearchRequest(user);//创建查询请求体构建器SearchSourceBuilder sourceBuilder new SearchSourceBuilder();//构建查询方式高亮查询TermQueryBuilder termQueryBuilder QueryBuilders.termQuery(name, zhangsan);//设置查询方式sourceBuilder.query(termQueryBuilder);//构建高亮字段HighlightBuilder highlightBuilder new HighlightBuilder();//设置标签前缀highlightBuilder.preTags(font colorred);//设置标签后缀highlightBuilder.postTags(/font);//设置高亮字段highlightBuilder.field(name);//设置高亮构建对象sourceBuilder.highlighter(highlightBuilder);//设置请求体request.source(sourceBuilder);//客户端发送请求获取响应对象SearchResponse response client.search(request, RequestOptions.DEFAULT);// 打印响应结果SearchHits hits response.getHits();System.out.println(took::response.getTook());System.out.println(time_out::response.isTimedOut());System.out.println(total::hits.getTotalHits());System.out.println(max_s core::hits.getMaxScore());System.out.println(hits::::);for (SearchHit hit : hits) {String sourceAsString hit.getSourceAsString();System.out.println(sourceAsString);//打印高亮结果MapString, HighlightField highlightFields hit.getHighlightFields();System.out.println(highlightFields);System.out.println(::::);} 10.聚合查询 10.1最大年龄 SearchRequest request new SearchRequest().indices(user);SearchSourceBuilder sourceBuilder new SearchSourceBuilder();sourceBuilder.aggregation(AggregationBuilders.max(maxAge).field(age));//设置请求体request.source(sourceBuilder);SearchResponse response client.search(request, RequestOptions.DEFAULT);//打印响应结果SearchHits hits response.getHits();System.out.println(hits hits);System.out.println(response);10.2分组查询
//创建搜索对象SearchRequest request new SearchRequest().indices(user);SearchSourceBuilder searchSourceBuilder new SearchSourceBuilder();searchSourceBuilder.aggregation(AggregationBuilders.terms(age_groupby).field(age));//设置请求体request.source(searchSourceBuilder);SearchResponse response client.search(request, RequestOptions.DEFAULT);System.out.println(response.getHits());System.out.println(response);
