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本篇內(nèi)容介紹了“ElasticSearch6.8 CRUD增刪改查的使用方法”的有關(guān)知識,在實際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧!希望大家仔細(xì)閱讀,能夠?qū)W有所成!
pom.xml
<!-- elasticsearch的客戶端 --><dependency> <groupId>org.elasticsearch.client</groupId> <artifactId>transport</artifactId> <version>6.8.8</version></dependency><dependency> <groupId>org.elasticsearch</groupId> <artifactId>elasticsearch</artifactId> <version>6.8.8</version></dependency><!-- elasticsearch依賴2.x的log4j --><dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.13.2</version></dependency><dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.13.2</version></dependency><!-- junit單元測試 --><dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version></dependency>
創(chuàng)建連接
@Beforepublic void prepare() throws Exception{index = "neptune"; type = "doc"; Settings settings = Settings.builder().put("cluster.name","hysg-test-cluster").build(); //創(chuàng)建客戶端 client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("127.0.0.1"),9300));}
獲取一條數(shù)據(jù)
@Testpublic void getOne()throws Exception{ GetResponse response = client.prepareGet(index, type,1).get(); System.out.println(response);}
根據(jù)查詢條件批量刪除數(shù)據(jù)
@Testpublic void deleteByQueryField()throws Exception{ BulkByScrollResponse response = DeleteByQueryAction.INSTANCE.newRequestBuilder(client) .filter(QueryBuilders.matchQuery("IP", "127.0.0.1")) .source(index) .get(); long deleted = response.getDeleted(); System.out.println(deleted);}
參考連接
https://blog.csdn.net/baidu_24545901/article/details/80153693
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