spring boot 集成 elasticsearch 5.x 、x-pack 权限

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

    
   
    
        elasticsearch-releases
        https://artifacts.elastic.co/maven
        
            true
        
        
            false
        
    
   
   
    
			2.8.2
			2.8.2
			5.5.3
			5.5.3
			
		    5.5.3
		    
	
     
    
       
           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}
       
         
        org.elasticsearch.client
        
        x-pack-transport
        ${x-pack-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: es-cn
         cluster-nodes: es-cn.elasticsearch.aliyuncs.com:9300
         username-password: elastic:O9VV8MaBmflV9g
         properties:
            transport.tcp.connect_timeout: 40s
            client.transport.ping_timeout: 10s
            client.transport.nodes_sampler_interval: 5s

配置 java Client连接池

package com.****.****.config;
import com.qdum.contact.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.elasticsearch.xpack.client.PreBuiltXPackTransportClient;
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 liuf
 */
@Configuration
public class ElasticsearchConfiguration implements FactoryBean<TransportClient>, InitializingBean, DisposableBean {
    private static final Logger logger = LoggerFactory.getLogger(ElasticsearchConfiguration.class);

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

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

    /**
     * 超时时间
     */
    @Value("${spring.data.elasticsearch.properties.transport.tcp.connect_timeout}")
    private String connectTimeout;
    /**
     * 等待来自节点的ping响应的时间。默认值为5s。
     */
    @Value("${spring.data.elasticsearch.properties.client.transport.ping_timeout}")
    private String pingTimeout;
    /**
     * 采样/ ping列出和连接的节点的频率。默认值为5s
     */
    @Value("${spring.data.elasticsearch.properties.client.transport.nodes_sampler_interval}")
    private String nodesSamplerInterval;

    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<TransportClient> getObjectType() {
        return TransportClient.class;
    }

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

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

    protected void buildClient() {

        try {
            //x-pack权限方法
            if (StringUtils.isNotBlank(usernamePassword)) {
                PreBuiltXPackTransportClient preBuiltTransportClient = new PreBuiltXPackTransportClient(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;
//                client.threadPool().getThreadContext().putHeader("Authorization", "Basic "+ Encodes.decodeBase64(usernamePassword));
                }
            } else {
                //没有x-pack权限访问
                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());
        }

    }

    private Settings settings(){
        Settings.Builder settings = Settings.builder();
        settings.put("cluster.name",clusterName)
//            .put("client.transport.ignore_cluster_name", false)
//            .put("client.transport.sniff", true)
//            .put("xpack.security.transport.ssl.enabled", true)
            .put("client.transport.nodes_sampler_interval", nodesSamplerInterval) // elasticSearch 健康检查时间
            .put("transport.tcp.connect_timeout", connectTimeout) // elasticSearch 超时时间
            .put("client.transport.ping_timeout",pingTimeout);    //elasticSearch ping
        //x-pack权限方法
        if (StringUtils.isNotBlank(usernamePassword)) {
            settings.put("xpack.security.user", usernamePassword);
        } else {

        }
        return settings.build();
    }

}

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