spring boot 集成 elasticsearch 5.x

目录

项目环境：

• jdk 1.8
• spring boot 1.5.1

由于spring boot 目前SpringBoot 1.5.1.RELEASE和Spring Data Elasticsearch 2.10.RELEASE仅支持ElasticSearch 2.4.0。 
他们不支持最新版本的ElasticSearch 5.x版本。

Spring Boot Version (x)	Spring Data Elasticsearch Version (y)	Elasticsearch Version (z)
x <= 1.3.5	y <= 1.3.4	z <= 1.7.2*
x >= 1.4.x	2.0.0 <=y < 5.0.0**	2.0.0 <= z < 5.0.0**

mavan 配置 pom.xml

   
    
            2.8.2
            2.8.2
            5.4.1
            5.4.1
    
     
    
       
           org.apache.logging.log4j
           log4j-api
           ${log4j-api.version}
       
       
           org.apache.logging.log4j
           log4j-core
           ${log4j-core.version}
       
       
           org.elasticsearch
           elasticsearch
           ${elasticsearch.version}
       
       
           org.elasticsearch.client
           transport
           ${transport.version}
       
    

: 特注

 ElasticSearch 5.x 根据官网配置maven 依赖, 由于 5.0x的 jar 内部使用的 apache log4日志。
 所以要配置额外的依赖支持 org.apache.logging.log4j。

application-dev.yml

spring:
     data:
   elasticsearch:
        cluster-name: elasticsearch
        cluster-nodes: 127.0.0.1:9300

配置 java Client连接池

package com.****.****.config;
import com.****.****.common.utils.StringUtils;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import java.net.InetAddress;
import java.net.UnknownHostException;


/**
 *TransportClientFactoryBean
 *
 * @author 
 */
@Configuration
public class ElasticsearchConfiguration implements FactoryBean<TransportClient>, InitializingBean, DisposableBean {
    private static final Logger logger = LoggerFactory.getLogger(ElasticsearchConfiguration.class);
    //由于项目从2.2.4配置的升级到 5.4.1版本 原配置文件不想动还是指定原来配置参数
    @Value("${spring.data.elasticsearch.cluster-nodes}")
    private String clusterNodes ;

    @Value("${spring.data.elasticsearch.cluster-name}")
    private String clusterName;

    private TransportClient client;

    @Override
    public void destroy() throws Exception {
        try {
            logger.info("Closing elasticSearch client");
            if (client != null) {
                client.close();
            }
        } catch (final Exception e) {
            logger.error("Error closing ElasticSearch client: ", e);
        }
    }

    @Override
    public TransportClient getObject() throws Exception {
        return client;
    }

    @Override
    public Class getObjectType() {
        return TransportClient.class;
    }

    @Override
    public boolean isSingleton() {
        return false;
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        buildClient();
    }

    protected void buildClient()  {
        try {
            PreBuiltTransportClient  preBuiltTransportClient = new PreBuiltTransportClient(settings());
            if (!"".equals(clusterNodes)){
                for (String nodes:clusterNodes.split(",")) {
                    String InetSocket [] = nodes.split(":");
                    String  Address = InetSocket[0];
                    Integer  port = Integer.valueOf(InetSocket[1]);
                    preBuiltTransportClient.addTransportAddress(new
                                     InetSocketTransportAddress(InetAddress.getByName(Address),port ));
                }
                client = preBuiltTransportClient;
            }
        } catch (UnknownHostException e) {
            logger.error(e.getMessage());
        }
    }
    /**
     * 初始化默认的client
     */
    private Settings settings(){
        Settings settings = Settings.builder()
            .put("cluster.name",clusterName) 
            .put("client.transport.sniff",true)
            build();
        client = new PreBuiltTransportClient(settings);
        return settings;
    }

}

参考文献

[1] : https://www.mkyong.com/spring-boot/spring-boot-spring-data-elasticsearch-example/