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