Elasticsearch Java REST高级客户端 bool查询

Elasticsearch Java REST高级客户端 bool查询

版本：Elasticsearch 7.2.0

maven配置见：Elasticsearch Java REST高级客户端-DocumentApi

1.search bool 查询

2.SearchScroll bool 查询

3.创建客户端

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1.search bool 查询

/**
	 * boolmatch查询
	 */
	public static void boolQuery() {
		RestHighLevelClient client = getClient();

		// 这里可以不指定索引，也可以指定多个
		SearchRequest searchRequest = new SearchRequest("tomcat*");
		SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
		searchRequest.source(searchSourceBuilder);
		 QueryBuilder queryBuilder = QueryBuilders.boolQuery()
	                .must(QueryBuilders.matchQuery("geoip.country_name", "China"))
	                .must(QueryBuilders.matchQuery("geoip.region_name", "Zhejiang"))
	                .must(QueryBuilders.matchQuery("verb", "POST"))
	                .mustNot(QueryBuilders.termQuery("message", "sessionID"))
	                .should(QueryBuilders.rangeQuery("timestamp").gte("2019-07-23").lte("2019-08-23"))
	                .filter(QueryBuilders.rangeQuery("bytes").gte(1000).lte(10000));

		searchSourceBuilder.query(queryBuilder);
		searchSourceBuilder.from(0);
		searchSourceBuilder.size(32);
		// 按评分排序
		searchSourceBuilder.sort("_score");
		SearchResponse search = null;
		try {
			search = client.search(searchRequest, RequestOptions.DEFAULT);
			search.getHits().forEach(System.out::println);
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			close(client);
		}
	}

2.SearchScroll bool 查询

/**
 * bool查询
 */
	public static void searchScrollBool() {
		RestHighLevelClient client = getClient();
		final Scroll scroll = new Scroll(TimeValue.timeValueMinutes(1L));
		SearchRequest searchRequest = new SearchRequest("bi-tomcat-*");
		searchRequest.scroll(scroll);
		SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
		 QueryBuilder queryBuilder = QueryBuilders.boolQuery()
	                .must(QueryBuilders.matchQuery("geoip.country_name", "China"))
	                .must(QueryBuilders.matchQuery("geoip.region_name", "Zhejiang"))
	                .must(QueryBuilders.matchQuery("verb", "POST"))
	                .mustNot(QueryBuilders.termQuery("message", "sessionID"))
	                .should(QueryBuilders.rangeQuery("timestamp").gte("2019-07-23").lte("2019-08-23"))
	                .filter(QueryBuilders.rangeQuery("bytes").gte(1000).lte(10000));

		searchSourceBuilder.query(queryBuilder);
		searchRequest.source(searchSourceBuilder);

		SearchResponse searchResponse = null;
		try {
			searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
		} catch (IOException e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
		String scrollId = searchResponse.getScrollId();
		SearchHit[] searchHits = searchResponse.getHits().getHits();
		var page = 1;
		while (searchHits != null && searchHits.length > 0) {

			SearchScrollRequest scrollRequest = new SearchScrollRequest(scrollId);
			scrollRequest.scroll(scroll);
			try {
				searchResponse = client.scroll(scrollRequest, RequestOptions.DEFAULT);
			} catch (IOException e) {
				e.printStackTrace();
			}
			scrollId = searchResponse.getScrollId();
			searchHits = searchResponse.getHits().getHits();
			if (searchHits != null && searchHits.length > 0) {
				page++;
				System.out.println("第"+page+"页");
				Arrays.asList(searchHits).stream().map(h -> h.getSourceAsString()).forEach(System.out::println);
			}
		}

		ClearScrollRequest clearScrollRequest = new ClearScrollRequest();
		clearScrollRequest.addScrollId(scrollId);
		ClearScrollResponse clearScrollResponse;
		try {
			clearScrollResponse = client.clearScroll(clearScrollRequest, RequestOptions.DEFAULT);
			boolean succeeded = clearScrollResponse.isSucceeded();
			System.out.println("清除滚屏是否成功:" + succeeded);
		} catch (IOException e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
		
		close(client);
	}

3.创建客户端

/**
	 * 
	 * 关闭客户端
	 * 
	 * @param client
	 */
	private static void close(RestHighLevelClient client) {
		try {
			client.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	/**
	 * 获取客户端
	 * 
	 * @return
	 */
	private static RestHighLevelClient getClient() {
		RestHighLevelClient client = new RestHighLevelClient(
				RestClient.builder(new HttpHost("elk-node01", 9200, "http"), new HttpHost("elk-node02", 9200, "http"),
						new HttpHost("elk-node03", 9200, "http")));
		return client;
	}