elasticsearch java api

Java API implementationsJar Package Import Please refer to the previous blog Elasticsearch 5.X under the Java API Usage guideWrite a test class:Package Esjavapia5;Import Java. NET. InetAddress;Import

ElasticSearch JAVA API Official document: Https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/java-docs-index.htmlFirst, generate JSONThe first step in creating an ind

= Querybuilders. Multimatchquery("Git","title","Content");SearchResponse response = Client. Preparesearch("Blog"). Settypes("article"). Setquery(QB2). Execute(). Actionget();Searchhits hits = response. Gethits();if (hits. Totalhits() >0) {for (Searchhit hit:hits) {System. out. println("Score:"+hit. Getscore()+": \ T"+hit. GetSource());//. Get ("title")}} else {System. out. println([0 results found ]);}} catch (Unknownhostexception e) {E. Printstacktrace();} }}Query Result:Log4j:warn No append

document that deletes an index named blog with a type of Article,id 1:DeleteResponse dResponse = client.prepareDelete("blog", "article", "1").execute().actionGet(); 1 2 by Deleteresponse the Isfound () method of the object, you can get the success of the deletion, and the return value is a Boolean type.Third, delete through queryelasticsearch-2.3 and older APIs are not the same, install plugins:delete-by-query 1 When a cluster has multiple nodes, each node needs

blog with a type of Article,id 1:DeleteResponse dResponse = client.prepareDelete("blog""article""1").execute().actionGet();by Deleteresponse the Isfound () method of the object, you can get the success of the deletion, and the return value is a Boolean type.Third, delete through queryelasticsearch-2.3 and older APIs are not the same, install plugins:delete-by-queryDelete the index named Twitter, with all documents of type Tweet,user field containing kimchy:DELETE /twitter/tweet/_query?q=user:ki

This Learning note comes from the ES official website's Guidance document: ES JAVA API Client client is a class that enables various operations on the ES cluster: Index, GET, Delete, Search , as well as management tasks for ES clusters. Client constructs need to be based on the transportclient transportclient transportclient can remotely connect ES clusters through a transmission module, but it is not r

Org.elasticsearch.common.settings.settings;import org.elasticsearch.common.transport.InetSocketTransportAddress ; Import Org.elasticsearch.index.query.fuzzyquerybuilder;import Org.elasticsearch.index.query.MatchQueryBuilder; Import Org.elasticsearch.index.query.querybuilder;import Org.elasticsearch.index.query.querybuilders;import Org.elasticsearch.index.query.querystringquerybuilder;import Org.elasticsearch.index.query.RangeQueryBuilder; Import Org.elasticsearch.index.query.termquerybuilder;im

processing index. If you need to put a string as a whole to be indexed, this field needs to be set: Field ("Index", "not_analyzed").Index data /** * Bulk Index */@Test public void Indexdata () {Bulkrequestbuilder Requestbuilder = Client.preparebu LK (); for (person person:personlist) {String obj = getindexdatafromhotspotdata (person); if (obj! = null) {Requestbuilder.add (Client.prepareindex ("Test_index", "Test", String.valueof (Person.getid ())) . Setrefresh (T

]View PlainCopy Searchhits hits = Myresponse.gethits (); for (int i = 0; i System.out.println (Hits.gethits () [I].getsourceasstring ());} It can also use Hits.gethits () [I].getsource (), which is a map format that can be displayed in detailThird, the implementation of other APIs during the searchWhen we read the DSL, we can see that the query has a lot of queries, such as multi-domain, such as filtering query conditions, the following for the

].getsourceasstring ());} It can also use Hits.gethits () [I].getsource (), which is a map format that can be displayed in detailThird, the implementation of other APIs during the searchWhen we read the DSL, we can see that the query has a lot of queries, such as multi-domain, such as filtering query conditions, the following for the Elasticsearch server development of some basic query DSL given in the Java