Elasticsearch-java Client Connections

Write in front of the words: reading broken million, coded as God
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The simplest connection to the ES server in a Java client

(Demo only for quick and easy use)

1  PackageCom.es.util.elasticsearch;2 3 ImportLombok. Data;4 ImportOrg.apache.log4j.Logger;5 ImportOrg.elasticsearch.action.search.SearchRequestBuilder;6 ImportOrg.elasticsearch.action.search.SearchResponse;7 Importorg.elasticsearch.client.transport.TransportClient;8 Importorg.elasticsearch.common.settings.Settings;9 Importorg.elasticsearch.common.transport.InetSocketTransportAddress;Ten ImportOrg.elasticsearch.common.unit.TimeValue; One Importorg.elasticsearch.transport.client.PreBuiltTransportClient; A Importorg.springframework.stereotype.Component; -  - Importjavax.annotation.PostConstruct; the Importjava.net.InetAddress; - Importjava.net.UnknownHostException; -  - /** +  * @author: Huobaopaocai - * @date: 2018/2/15-10:31 + * @Description: Elasticsearch client A  */ at@Component ("Elasticsearchconstant") - @Data -  Public classElasticsearchconstant { -  -      Public Static FinalLogger LOG = Logger.getlogger (elasticsearchconstant.class); -  in     /** - * ES server address to      */ +     PrivateString host = "127.0.0.1"; -  the     /** * * ES server port $      */Panax Notoginseng     PrivateInteger Port = 9300; -  the     /** + * ES cluster name A      */ the     PrivateString clustername = "Huobaopaocai-es-cluster"; +  -     /** $ * ES index name $      */ -     PrivateString Esindex = "ecommerce"; -  the     /** - * es index under type nameWuyi      */ the     PrivateString Estype = "Product"; -  Wu      PublicTransportclient client =NULL; -  About     PrivateSearchrequestbuilder Requestbuilder; $  -     PrivateLong time_out = 20L; -  - @PostConstruct A      Public voidinit () { +Settings Settings =Settings.builder () the. put ("Cluster.name", clustername) -. put ("Client.transport.sniff",true) $. put ("Client.transport.ping_timeout", "600s") the . Build (); the         Try { theClient =Newprebuilttransportclient (Settings) the. addtransportaddress (Newinetsockettransportaddress (Inetaddress.getbyname (host), Port)); -}Catch(unknownhostexception e) { in Log.error (E, E.getcause ()); the         } the     } About  the     /** the * Initialize Searchrequestbuilder the      * @return +      */ -      PublicSearchrequestbuilder Initrequestbuilder () { theRequestbuilder =Client.preparesearch (Esindex). Settypes (Estype);Bayi         returnRequestbuilder; the     } the  -     /** - * Perform ES operations the      * @paramRequestbuilder the      * @return the      */ the      PublicSearchResponse Execute (searchrequestbuilder requestbuilder) { -SearchResponse SearchResponse =requestbuilder.settimeout (Timevalue.timevalueseconds (time_out)). Execute (). Actionget (); the         returnSearchResponse; the     } the}

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Elasticsearch-java Client Connections