spring使用elasticsearch 5.x

elasticsearch客户端选择

这里使用transport建立elasticsearch客户端

applicationContext.xml配置，属性可以采用读取属性文件的方式。参考类PropertyPlaceholderConfigurer。

<!-- elasticsearch配置 -->
    <bean id="esTransportClient" class="org.elk.ESTransportClient">
        <property name="clusterNodes" value="127.0.0.1:9300" />
        <property name="clusterName" value="elasticsearch" />
    </bean>

transport客户端类

public class ESTransportClient implements FactoryBean<TransportClient>, InitializingBean, DisposableBean {

    private static final Logger logger = LoggerFactory.getLogger(ESTransportClient.class);
    private String clusterNodes = "127.0.0.1:9300";
    private String clusterName = "elasticsearch";
    private Boolean clientTransportSniff = true;
    private Boolean clientIgnoreClusterName = Boolean.FALSE;
    private String clientPingTimeout = "5s";
    private String clientNodesSamplerInterval = "5s";
    private TransportClient client;
    private Properties properties;
    static final String COLON = ":";
    static final String COMMA = ",";

    @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() throws Exception {
        client = new PreBuiltTransportClient(settings());
        Assert.hasText(clusterNodes, "[Assertion failed] clusterNodes settings missing.");
        for (String clusterNode : split(clusterNodes, COMMA)) {
            String hostName = substringBeforeLast(clusterNode, COLON);
            String port = substringAfterLast(clusterNode, COLON);
            Assert.hasText(hostName, "[Assertion failed] missing host name in 'clusterNodes'");
            Assert.hasText(port, "[Assertion failed] missing port in 'clusterNodes'");
            logger.info("adding transport node : " + clusterNode);
            client.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(hostName), Integer.valueOf(port)));
        }
        client.connectedNodes();
    }

    private Settings settings() {
        if (properties != null) {
            return Settings.builder().put(properties).build();
        }
        return Settings.builder()
                .put("cluster.name", clusterName)
                .put("client.transport.sniff", clientTransportSniff)
                .put("client.transport.ignore_cluster_name", clientIgnoreClusterName)
                .put("client.transport.ping_timeout", clientPingTimeout)
                .put("client.transport.nodes_sampler_interval", clientNodesSamplerInterval)
                .build();
    }

    public void setClusterNodes(String clusterNodes) {
        this.clusterNodes = clusterNodes;
    }

    public void setClusterName(String clusterName) {
        this.clusterName = clusterName;
    }

    public void setClientTransportSniff(Boolean clientTransportSniff) {
        this.clientTransportSniff = clientTransportSniff;
    }

    public String getClientNodesSamplerInterval() {
        return clientNodesSamplerInterval;
    }

    public void setClientNodesSamplerInterval(String clientNodesSamplerInterval) {
        this.clientNodesSamplerInterval = clientNodesSamplerInterval;
    }

    public String getClientPingTimeout() {
        return clientPingTimeout;
    }

    public void setClientPingTimeout(String clientPingTimeout) {
        this.clientPingTimeout = clientPingTimeout;
    }

    public Boolean getClientIgnoreClusterName() {
        return clientIgnoreClusterName;
    }

    public void setClientIgnoreClusterName(Boolean clientIgnoreClusterName) {
        this.clientIgnoreClusterName = clientIgnoreClusterName;
    }

    public void setProperties(Properties properties) {
        this.properties = properties;
    }
}

参考：https://github.com/spring-projects/spring-data-elasticsearch