elasticsearch 5.0 获取 TransportClient 操作客户端java API

private static TransportClient  transPort = null;
private String esClusterName;//集群名
private String esServerIps;//集群服务IP集合
private Integer esServerPort;//ES集群端口

/**
*  ES TransPortClient 客户端连接<br>
*  在elasticsearch平台中,可以执行创建索引,获取索引,删除索引,搜索索引等操作
* @return
*/
public TransportClient getTransPortClient() {
try {
if (transPort == null) {

if(esServerIps == null || "".equals(esServerIps.trim())){
return  null;
}

Settings settings = Settings.builder()
//                      .put("cluster.name", esClusterName)// 集群名
.put("client.transport.sniff", true)
// 自动把集群下的机器添加到列表中

.build();
transPort  = new  PreBuiltTransportClient(settings);
String esIps[] = esServerIps.split(",");
for (String esIp : esIps) {//添加集群IP列表
TransportAddress transportAddress =  new InetSocketTransportAddress(InetAddresses.forString(esIp),9300);
transPort.addTransportAddresses(transportAddress);
}
return transPort;
} else {
return transPort;
}
} catch (Exception e) {
e.printStackTrace();
if (transPort != null) {
transPort.close();
}
return null;
}
}