Elasticsearch5.0 Java Api (v)--Batch export index

Exports the retrieved data from the index library to an external file in the format. JSON

1  Packagecom.juyun.test;2 3 ImportJava.io.BufferedWriter;4 ImportJava.io.File;5 ImportJava.io.FileWriter;6 Importjava.io.IOException;7 Importjava.net.InetAddress;8 Importjava.net.UnknownHostException;9 Ten ImportOrg.elasticsearch.action.search.SearchResponse; One Importorg.elasticsearch.client.transport.TransportClient; A Importorg.elasticsearch.common.settings.Settings; - Importorg.elasticsearch.common.transport.InetSocketTransportAddress; - ImportOrg.elasticsearch.index.query.QueryBuilder; the Importorg.elasticsearch.index.query.QueryBuilders; - Importorg.elasticsearch.search.SearchHits; - Importorg.elasticsearch.transport.client.PreBuiltTransportClient; -  +  Public classElasticsearchbulkout { -  +     /** A * Bulk export of documents in the index library to a file in JSON format at      * @paramargs -      */ -      Public Static voidMain (string[] args) { -  -         Try { -             //set the cluster name inSettings Settings = Settings.builder (). Put ("Cluster.name", "Elasticsearch"). Build (); -             //Create client toTransportclient client =Newprebuilttransportclient (Settings) +. addtransportaddress (NewInetsockettransportaddress (Inetaddress.getbyname ("172.16.0.157"), 9300)); -  theSearchResponse response = Client.preparesearch ("Flow") *. Settypes ("Data") $. SetSize (5000)Panax Notoginseng . Setquery (Querybuilders.matchallquery ()) - . Execute (). Actionget (); theSearchhits resulthits =response.gethits (); +  AFile Article =NewFile ("C:/users/juyun/desktop/data.json"); theFileWriter FW =NewFileWriter (article); +BufferedWriter BFW =NewBufferedWriter (FW); -  $             if(Resulthits.gethits (). length = = 0) { $System.out.println ("Find 0 data!")); -  -}Else { the                  for(inti = 0; I < Resulthits.gethits (). length; i++) { -String Jsonstr =resulthits.gethits () [i]Wuyi . getsourceasstring (); the System.out.println (JSONSTR); - Bfw.write (JSONSTR); WuBfw.write ("\ n"); -                 } About             } $ bfw.close (); - fw.close (); -  -}Catch(unknownhostexception e) { A e.printstacktrace (); +}Catch(IOException e) { the e.printstacktrace (); -         } $     } the  the}

Elasticsearchbulkout

Elasticsearch5.0 Java Api (v)--Batch export index