ElasticSearch6.3.2開啓x-pack後客戶端調用

問題：在ElasticSearch6.3.2開啓x-pack後如何使用java客戶端訪問？

ElasticSearch6.3.2 java客戶端調用

這裏引入的是spring-boot-starter-data-elasticsearch（底層用的也是TransportClient）

開啓x-pack後需要用到x-pack-transport（官網文檔版本是6.2.4-這裏有詳細介紹）

ElasticSearch6.3版本已經安裝了x-pack  x-pack默認已經安裝位置

/usr/local/software/elasticsearch-6.3.2/modules

license時間是一個月

curl -XGET -u elastic:ilikees2019 'http://127.0.0.1:9200/_license'

集成過程記錄如下：

1、pom.xml文件

這裏使用springboot版本是2.1.3.RELEASE

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
</parent>
<!--spring data 操作es-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
 <!--add the x-pack 及依賴 開始-->
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>x-pack-transport</artifactId>
            <version>${elasticsearch.version}</version>
        </dependency>
        <dependency>
            <groupId>com.unboundid</groupId>
            <artifactId>unboundid-ldapsdk</artifactId>
            <version>3.2.0</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>x-pack-core</artifactId>
            <version>6.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-jdk15on</artifactId>
            <version>1.65</version>
        </dependency>
        <!--add the x-pack 及依賴 結束-->

x-pack-core.jar可以從/usr/local/software/elasticsearch-6.3.2/modules/x-pack/x-pack-core/x-pack-core-6.3.2.jar 下載到本地maven庫中

其他依賴與安全認證的算法包如bouncycastle等也需要自己引入下

2、創建XPackClient

   @Bean
    public TransportClient getTransportClient() throws UnknownHostException{
        Settings.Builder builder = Settings.builder();
        builder.put("cluster.name", "myClusterName");//集羣名稱
        builder.put("client.transport.sniff", true);//自動嗅探整個集羣的狀態，把集羣中其他ES節點的ip添加到本地的客戶端列表中
        builder.put("xpack.security.transport.ssl.enabled", false);//設置xpack ssl這裏設置爲false
        builder.put("xpack.security.user", "xxxxx");//集羣設置的密碼
        builder.build()
        TransportClient transportClient = new PreBuiltXPackTransportClient(settings())
                .addTransportAddress(new TransportAddress(InetAddress.getByName("xxxxx"), 9300));//集羣的ip地址
        log.info("transportClient.listedNodes():{}",transportClient.listedNodes());
        log.info("ElasticsearchXPackClient 啓動成功");
        return transportClient;
    }

 

3、測試使用 

 因爲上面pom.xml文件中用的是spring-boot-starter-data-elasticsearch 所以也可以直接使用ElasticsearchRepository，最後調用的還是配置的TransportClient

@Autowired
    private TransportClient transportClient; 
@Test
    public void testFindEsTransport() {
        // 發起請求得到響應
        GetResponse response=transportClient.prepareGet("bank","account","9").get();
        System.out.println(response.getSource());
    }