ElasticSearch 创建链接 创建索引并写入数据 查询数据 删除索引BY Id 简单的demo

1：创建ES链接：

Clientclient= null;

           ipAddress= "127.0.0.1" ;

           Settingssettings= Settings.settingsBuilder().put("client.transport.ping_timeout", 60, TimeUnit.SECONDS)

                     .put("client.transport.sniff",true).build();

           try{

                client= TransportClient.builder().settings(settings).build()

                           .addTransportAddress(newInetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));

           }catch(Exceptione) {

                e.printStackTrace();

           }

           returnclient;

2:创建索引并存入数据：

     

publicIndexResponse createIndexResponse(Stringindexname, Stringtype, Stringjsondata) {

           IndexResponseresponse= ClientFactory.getClient("").prepareIndex(indexname,type).setSource(jsondata).execute()

                     .actionGet();

           returnresponse;

     }

3:根据索引&type查询数据

SearchResponsesearchResponse= ClientFactory.getClient("")

                                                    .prepareSearch(indexname)

                                                    .setTypes(types)

                                                    .setSearchType(SearchType.DFS_QUERY_THEN_FETCH)

                                                    .setQuery(queryBuilder)

//                                                  .setFrom(0).setSize(2)

                                                   //排序

//                                                  .addSort("count", org.elasticsearch.search.sort.SortOrder.ASC)

                                                   //分组查询

                                                    .addFieldDataField("type")

                                                    .execute().actionGet();

           SearchHitshits= searchResponse.getHits();

           System.out.println("查询到记录数="+ hits.getTotalHits());

           SearchHit[]searchHists= hits.getHits();

           if( searchHists.length> 0) {

                for(SearchHithit: searchHists) {

                     Integerid= (Integer)hit.getSource().get("id");

                     Stringname= (String)hit.getSource().get("name");

                     Stringfunction= (String)hit.getSource().get("function");

                     Integercount= (Integer)hit.getSource().get("count");

                     Stringtype= (String)hit.getSource().get("type");

                     list.add(newMedicine(id,name,function,count,type));

                }

           }

           returnlist;

queryBuilder:

                    

          QueryBuilderqueryBuilder= QueryBuilders.commonTermsQuery("name","感冒");

 

 

 

 

4:删除索引:

      DeleteResponse deleteResponse = new DeleteResponse();
      ClientFactory.getClient("localhost").prepareDelete("indexdemo","typedemo","AVS9lVbPE6VtAdn5kDAm").execute().actionGet();

      System.out.println(deleteResponse.isFound());

 

 

 

 

 

 

 

 

 

注：   本项目使用maven搭建：

   <dependency>
     <groupId>org.elasticsearch</groupId>
     <artifactId>elasticsearch</artifactId>
     <version>2.1.1</version>
   </dependency>