elasticsearch rest api java

The Elasticsearch query is to construct the QueryBuilder object in the Java API by executing the query criteria in JSON format, Elasticsearch fully supports the QUERYDSL style query, The QueryBuilder build class is the Querybuilders,filter build class is filterbuilders. The following is an example of constructing Query

Elasticsearch is a Lucene-based search server. It provides a distributed multi-user-capable full-text search engine, based on a restful web interface. Elasticsearch is developed in Java, as the current popular enterprise-class search engine, used in cloud computing , can achieve real-time search, and has a stable, reliable, fast installation, ease of use and many

(). Getsuggestion (Suggestzhname). GetEntries (); the for(SUGGEST.SUGGESTION.ENTRYextendsSuggest.suggestion.entry.option>OP:RESULT1) { thelistextendssuggest.suggestion.entry.option> options =op.getoptions (); the if(Suggestlist.size () Number ) { + for(Suggest.Suggestion.Entry.Option pp:options) { - if(Suggestlist.size () Suggestlist.contains (Pp.gettext (). toString ())) { the Suggestlist.add (Pp.gettext (). toString ());Bayi

Java official documentation for the main reference el: https://www.elastic.co/guide/en/elasticsearch/client/java-api/1.7/generate.html A blog: http://www.cnblogs.com/huangfox/p/3543134.html Elasticsearch Official Guide: http://es.xiaoleilu.com/010_Intro/30_Tutorial_Search.ht

elasticsearch-5.x JAVA API Part II: Cluster Health and segment merging1. Cluster healthFirst define a class to store cluster health informationPackage Com.zw.elasticsearch.cluster;public class Clusterhealth {//Cluster name private String clustername; Number of nodes in cluster private int number_of_node; Active total number of pieces private int number_of_activ

Elasticsearch JAVA API is extremely extensive, it is obviously not realistic to introduce all the method meanings. From 1.x to 2.x, to 5.x, finally to 6.0, but also in just two or three years, I picked 5.4.0 version of the three parts of the usual use of sorting out, the meaning of the parameters of the method I do not introduce,

=NewGetquery (); Query.setid ("1");//The ID of the index Yanan Yanan = elasticsearchtemplate.queryforobject (query, Yanan.Class); System.out.println (Yanan.getgender ()); System.out.println (Yanan.getname ()); System.out.println (Yanan.getid ());//ID of the entity}Static Elasticsearchtemplate getelasticsearchtemplate (String ip,string clustername,int port) {//http://blog.csdn.net/ty4315/article/details/52434296"target=" _blank ">@ reference article 1http://blog.csdn.net/ljc2008110/article/detai

Elasticsearch supports batch addition or deletion of index documents. In Java APIs, bulkrequestbuilder is constructed, batch index/delete requests are added to bulkrequestbuilder, and bulkrequestbuilder is executed. The following is an example: Import static Org. elasticsearch. common. xcontent. xcontentfactory. *; bulkrequestbuilder bulkrequest = client. prepare

("192.168.0.224"9300));Added the Addplugin line.Iv. Delete all documents under one typeTo delete all documents under Blog/article:1. Command-line mode" Http://192.168.0.224:9200/blog/article/_query " ' {"query": { "match_all": {} }}'2.java APIImport Org.elasticsearch.action.deletebyquery.deletebyqueryaction;import Org.elasticsearch.action.deletebyquery.deletebyqueryrequestbuilder;import Org.elasticsearch.action.deletebyquery.deletebyqueryresponse

", "query": { "term": { "_parent": "London" } } } }}The search did not result in any results. All sorts of attempts were unsuccessful, and then the answers to the questions on the StackOverflow were answered, and the correct searches were made:Curl GET Company/employee/_search{" query": {" has_parent": {" type": "Branch", "query": { "IDs": { "values": ["London" ] } } } }The correspondin

Elasticsearch Java API (ii): index create delete cluster managementElastic official website has the authoritative Java API English needs to be patient to see here to tidy up the basic operationCreate a MAVEN project to add dependencies First, customize a client to con

(Springjunit4classrunner.class) @ContextConfiguration (locations = "Classpath:applicationContext.xml") public class TestES {@Autowired @Qualifier ("esclient") Private CLient client; @Test public void Testsearch () {String index= "index_log_daily"; String type= "Uq_log"; String uquestion = "139"; String province = "Jiangsu"; SearchResponse SearchResponse = Client.preparesearch (index). Settypes (Type). Setquery (Quer Ybuilders.matchallquery ())//query all. Setquery (Q

First, a query, you need to establish a searchrequestbuilder, which will give a query for which index or type, and all the settings can be implemented here, such as fuzzy query, scope query, prefix query.Searchrequestbuilder Responsebuilder = Client.preparesearch ("case"). Settypes ("Case_info");Two. Total number of statistical records SearchResponse response = Client.preparesearch ("case") . Settypes ("Case_info") . Setsearchtype (Searchtype.default)

();Transportclient client = new prebuilttransportclient (settings);Other transport client settings include:Client.transport.ignore_cluster_name: Set to True to ignore the checksum of the cluster name when the node is connectedClient.transport.ping_timeout: Set the wait time for a node to get response, default 5 SecondsClient.transport.nodes_sampler_interval: How long does it take to get/ping list of nodes and connect, default 5 secondsThree. View cluster information list client.connected

(); LongThen, according to the primary key to update the ES information, which does not appear in the field to update, do not overwrite the original value.Updateresponse response = ElasticsearchConfig.client.prepareUpdate ("index", "type", "PRIMARY Key ID") . Setdoc ( Xcontentfactory.jsonbuilder (). startobject () field ("business Field 1", "2") . Field ("Busine

NEO4J connection Java currently has embedded, JDBC, and rest APIs.Take the neo4j document Jersey as an example (there are many ways to achieve, currently feel jersey implementation is more troublesome, others have encapsulated good request).LIB Package used: Jersey-bundle-1.17.jar (this is not easy to find) and Jersey provided packageString Server_root_uri = "http://localhost:7474/db/data/"; FinalString Nod

First, the demandYou need to implement a field in the project to delete the document and delete a property of the specified field.Take document TEST/DOCUMENT/1 as an example:{ "_index":"Test", "_type":"Document", "_id":"1", "_score":1, "_source":{ "class":"Com.test.data", "ID":1, "Items":[{"class": "Com.test.data", "ID": 1 }], "lastupdated":"2016-07-22t11:26:56z", "ProcessInstance":{"class": "Com.test.data", "ID": 1 }, "Tians

To group queries by aggregation:　　SearchResponse response = Client.preparesearch (Index_douban). Settypes (Type_douban). Addaggregation (Aggregationbuilders.terms ("By_" +tag). Field (TAG). Size (1000)). Execute (). Actionget ();Terms Terms = Response.getaggregations (). Get ("By_" +tag);For (Bucket b:terms.getbuckets ()) {Sum sum = b.getaggregations (). Get ("sum");List.add (String) B.getkey ());System.out.println ("Filedname:" +b.getkey () + "Doccount:" +b.getdoccount ());}It is important to n

", "Carsource", "1"). //SetSource (Model2json ()). get ();//if (urequest.) {//System.out.println ("add Success");// } } Public Static voidsetmapping (client client) {Try{putmappingresponse response=client.admin (). Indices (). prepareputmapping ("Carsrc"). SetType ("Carsource"). SetSource (Xcontentfactory.jsonbuilder (). StartObject () . StartObject ("Car_name"). StartObject ("Cars"). Field ("Analyzer", "whitespace"). Field ("Type", "string"). EndObject (). EndObject (). Endobjec