elasticsearch tutorial java

Online API:Https://www.elastic.co/guide/en/elasticsearch/client/java-api/2.4/transport-client.htmlTutorial:Http://blog.java1234.com/blog/articles/345.htmlAttention:different versions of the ES API differ significantly, the introduction of the jar package version must be consistent with production. tools and methods of use can refer to the spare Parts system project: source See GitHubTools and methods of use

Package Cn.test;import Java.net.inetaddress;import Java.net.unknownhostexception;import Org.elasticsearch.client.transport.transportclient;import Org.elasticsearch.common.settings.settings;import Org.elasticsearch.common.transport.inetsockettransportaddress;public class Elktest {//private static final String Cluster_Name = "Cluster_Name"; public static final String cluster_name = "Elasticsearch"; Instance name//private static final String IP

1. Add Maven DependencyXML code dependency> groupId>org.elasticsearchgroupId> artifactid>elasticsearchartifactid> version>0.90.0version> Dependency> It is recommended to use MAVEN to manage the project because Elasticsearch has a lot of dependencies and manual maintenance is cumbersome2. Create a client that connects to the Elasticsearch serviceJava code Settings Setti

In the afternoon try to use Elasticsearch Java client to do data retrieval work, test the batch update, the code is as follows: Public Static voidBulkupdategoods (listthrowsIOException, Interruptedexception, executionexception {client client=NULL; Try{Client=Transportclient.builder (). Build (). Addtransportaddress (NewInetsockettransportaddress (Inetaddress.getbyname ("Hadoop-slave4"), 9300)); } Catch(Exce

Write in front of the words: reading broken million, coded as God--------------------------------------------------------------------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.elasticsearc

Package Com.kele,xuebi; Import java.net.InetAddress; Import java.net.UnknownHostException; Import Org.elasticsearch.action.index.IndexResponse; Import org.elasticsearch.client.Client; Import org.elasticsearch.client.transport.TransportClient; Import org.elasticsearch.common.settings.Settings; Import org.elasticsearch.common.transport.InetSocketTransportAddress; public class CreateIndex {public static void main (string[] args) throws Unknownhostexception {//TODO auto-generated Method stub//cli

dynamically create a connection, which can hold the IP address of the Elasticsearch service client client=NULL; Try{string[] urllist= Url.split (","); ListNewArraylist(); for(String str:urllist) {logger.info (str); Inetsockettransportaddress transportaddress=NewInetsockettransportaddress (Inetaddress.getbyname (str), 9300); List.add (transportaddress); } logger.info ("Create Elasticsearch Client

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

First, install the plug-inTo delete all documents under one type of an index, this is equivalent to emptying the table operation in a relational database . Check out some of the information can be removed through the Delete-by-query plugin, first install the Delete-by-query plugin using the plugin manager:sudo bin/plugin install Delete-by-queryOffline mode similar to head, decompression placed under the elasticsearch/plugins/can be.When a cluster has

", "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 Client Operation---Search filtering, grouping highlighting, ElasticsearchjavaElasticsearch provides a lot of API, look at the name of almost can understand what meaningSOURCE Address: Source Download clickpublic void Search01 () {QueryBuilder query = querybuilders.querystring ("9");//Set the content of the search and the actual size searchresponse res = Client.preparesearch ("Test"). Setq

ES (Elasticsearch) suggester A total of four categories (term suggester, phrase suggester, completion suggester, context Suggester), Among them, completion suggester as the auto-completion function in the search box, especially used.This article will implement a simple example in the Java language to describe how to use completion suggester.The main function of the example is to create an auto-completion fu

The previous article introduced the client structure of elasticsearch, the client is just a façade, there is an action behind each method to undertake the corresponding Function. But action is not really a function of the implementation, it is just a proxy, its true implementation is transportaction. this article makes a simple analysis of action and Transportaction implementation,Most of the operations in Elastic