javaAPI连接Elasticsearch

代码

public class ESTransportClient implements FactoryBean, InitializingBean, DisposableBean {

private static final Logger logger = LoggerFactory.getLogger(ESTransportClient.class);
private String clusterNodes = "127.0.0.1:9300:9300";
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);
  //  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("127.0.0.1:9300"), Integer.valueOf(9300)));
   // }
    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;
}

}

@Autowired
private ESTransportClient client;

 SearchRequestBuilder ss = client.getObject().prepareSearch("index1","index2").setSearchType(SearchType.QUERY_THEN_FETCH);

注：之前直接写链接，也没做连接池，也没用spring依赖注入，结果项目运行一阵就内存溢出了。改为spring管理后好了。