ElasticSearch（四）：使用Java连接ElasticSearch集群

 public class ESIndexMapping {

     private static String host="192.168.56.3"; // 服务器地址
     private static int port=9300; // 端口

     public static final String CLUSTER_NAME = "my-application"; //集群名称

     private TransportClient client=null;

     private static Settings settings= Settings.builder()
             .put("cluster.name",CLUSTER_NAME)
             .put("client.transport.sniff", true)
             .build();

     //获取客户端
     @SuppressWarnings({ "resource", "unchecked" })
     @Before
     public void getClient() throws Exception {
         try {
             client = new PreBuiltTransportClient(settings)
                     .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(host),port));
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }

     //关闭客户端
     @After
     public void close() {
         if(client!=null) {
             client.close();
         }
     }
 }