ElasticSearch6.8 CRUD增删改查的使用方法

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pom.xml

<!-- elasticsearch的客户端 --><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依赖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单元测试 --><dependency>    <groupId>junit</groupId>    <artifactId>junit</artifactId>    <version>4.12</version></dependency>

创建连接

@Beforepublic void prepare() throws Exception{index = "neptune";    type = "doc";    Settings settings = Settings.builder().put("cluster.name","hysg-test-cluster").build();    //创建客户端     client = new PreBuiltTransportClient(settings)
            .addTransportAddress(new TransportAddress(InetAddress.getByName("127.0.0.1"),9300));}

获取一条数据

@Testpublic void getOne()throws Exception{    GetResponse response = client.prepareGet(index, type,1).get();    System.out.println(response);}

根据查询条件批量删除数据

@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);}

参考连接

https://blog.csdn.net/baidu_24545901/article/details/80153693

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