ElasticSearch 创建链接 创建索引并写入数据 查询数据 删除索引BY Id 简单的demo

1：创建ES链接：

Client client = null ;

            ipAddress = "127.0.0.1" ;

           Settings settings = Settings.settingsBuilder().put( "client.transport.ping_timeout" , 60, TimeUnit. SECONDS )

                     .put( "client.transport.sniff" , true ).build();

            try {

                 client = TransportClient.builder().settings( settings ).build()

                           .addTransportAddress( new InetSocketTransportAddress(InetAddress.getByName( "localhost" ), 9300));

           } catch (Exception e ) {

                 e .printStackTrace();

           }