elasticsearch java调用实例

http://outofmemory.cn/code-snippet/3780/Java-Client-call-ElasticSearch-do-quanwen-search-code-example

package com.es;

import java.io.IOException;

import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.common.xcontent.XContentFactory;

public class Test {

    public static void main(String[] args) throws ElasticsearchException, IOException {
        Settings settings = ImmutableSettings.settingsBuilder().put("client.transport.sniff", true).put("cluster.name", "elasticsearch_useraudit").build();  
        Client client = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress("192.168.41.128", 9301));  
        IndexResponse response = client.prepareIndex("comment_index", "comment_ugc", "comment_123674")  
                .setSource( XContentFactory.jsonBuilder()  
                .startObject()  
                  .field("author", "569874")  
                  .field("author_name", "riching")  
                  .field("mark", 232)  
                  .field("body", "北京不错，但是人太多了")  
                  .field("createDate", "20130801175520")  
                  .field("valid", true)  
                .endObject())  
                .setTTL(8000)  
                .execute().actionGet();  
            System.out.println(response.getId());  
    }
}

另外一个例子：

package com.es;

import java.util.ArrayList;
import java.util.List;

import org.elasticsearch.action.index.IndexRequestBuilder;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;

/**
 * 
 *
 *  @version ： 1.0
 *  
 *  @author  ： 苏若年              <a href="mailto:DennisIT@163.com">发送邮件</a>
 *    
 *  @since   ： 1.0        创建时间:    2013-4-8    上午11:34:04
 *     
 *  @function： TODO        
 *
 */
public class ElasticSearchHandler {

    private Client client;

    public ElasticSearchHandler(){    
        //使用本机做为节点
        this("192.168.41.128");
    }

    public ElasticSearchHandler(String ipAddress){
        //集群连接超时设置
        /*  
              Settings settings = ImmutableSettings.settingsBuilder().put("client.transport.ping_timeout", "10s").build();
            client = new TransportClient(settings);
         */
//        client = new TransportClient().addTransportAddress(new InetSocketTransportAddress("192.168.41.128", 9301));
        Settings settings = ImmutableSettings.settingsBuilder().put("client.transport.sniff", true).put("cluster.name", "elasticsearch_useraudit").build();  
         client = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress("192.168.41.128", 9301));  
    }


    /**
     * 建立索引,索引建立好之后,会在elasticsearch-0.20.6\data\elasticsearch\nodes\0创建所以你看
     * @param indexName  为索引库名，一个es集群中可以有多个索引库。 名称必须为小写
     * @param indexType  Type为索引类型，是用来区分同索引库下不同类型的数据的，一个索引库下可以有多个索引类型。
     * @param jsondata     json格式的数据集合
     * 
     * @return
     */
    public void createIndexResponse(String indexname, String type, List<String> jsondata){
        //创建索引库 需要注意的是.setRefresh(true)这里一定要设置,否则第一次建立索引查找不到数据
        IndexRequestBuilder requestBuilder = client.prepareIndex(indexname, type).setRefresh(true);
        for(int i=0; i<jsondata.size(); i++){
            requestBuilder.setSource(jsondata.get(i)).execute().actionGet();
        }     

    }

    /**
     * 创建索引
     * @param client
     * @param jsondata
     * @return
     */
    public IndexResponse createIndexResponse(String indexname, String type,String jsondata){
        IndexResponse response = client.prepareIndex(indexname, type)
            .setSource(jsondata)
            .execute()
            .actionGet();
        return response;
    }

    /**
     * 执行搜索
     * @param queryBuilder
     * @param indexname
     * @param type
     * @return
     */
    public List<Medicine>  searcher(QueryBuilder queryBuilder, String indexname, String type){
        List<Medicine> list = new ArrayList<Medicine>();
        SearchResponse searchResponse = client.prepareSearch(indexname).setTypes(type)
        .setQuery(queryBuilder)
        .execute()
        .actionGet();
        SearchHits hits = searchResponse.getHits();
        System.out.println("查询到记录数=" + hits.getTotalHits());
        SearchHit[] searchHists = hits.getHits();
        if(searchHists.length>0){
            for(SearchHit hit:searchHists){
                Integer id = (Integer)hit.getSource().get("id");
                String name =  (String) hit.getSource().get("name");
                String function =  (String) hit.getSource().get("funciton");
                list.add(new Medicine(id, name, function));
            }
        }
        return list;
    }


    public static void main(String[] args) {
        ElasticSearchHandler esHandler = new ElasticSearchHandler();
        List<String> jsondata = DataFactory.getInitJsonData();
        String indexname = "indexdemo";
        String type = "typedemo";
        esHandler.createIndexResponse(indexname, type, jsondata);
        //查询条件
//        QueryBuilder queryBuilder = QueryBuilders.inQuery("name", "感冒");
        QueryBuilder queryBuilder = QueryBuilders.boolQuery()
          .must(QueryBuilders.termQuery("id", 1));
        List<Medicine> result = esHandler.searcher(queryBuilder, indexname, type);
        for(int i=0; i<result.size(); i++){
            Medicine medicine = result.get(i);
            System.out.println("(" + medicine.getId() + ")药品名称:" +medicine.getName() + "\t\t" + medicine.getFunction());
        }
    }
}

package com.es;

import java.util.ArrayList;
import java.util.List;

/**
 * 
 *
 *  @version ： 1.0
 *  
 *  @author  ： 苏若年              <a href="mailto:DennisIT@163.com">发送邮件</a>
 *    
 *  @since   ： 1.0        创建时间:    2013-4-8    上午11:38:15
 *     
 *  @function： TODO        
 *
 */
public class DataFactory {

    public static DataFactory dataFactory = new DataFactory();

    private DataFactory(){

    }

    public DataFactory getInstance(){
        return dataFactory;
    }

    public static List<String> getInitJsonData(){
        List<String> list = new ArrayList<String>();
        String data1  = JsonUtil.obj2JsonData(new Medicine(1,"银花 感冒 颗粒","功能主治：银花感冒颗粒 ，头痛,清热，解表，利咽。"));
        String data2  = JsonUtil.obj2JsonData(new Medicine(2,"感冒  止咳糖浆","功能主治：感冒止咳糖浆,解表清热，止咳化痰。"));
        String data3  = JsonUtil.obj2JsonData(new Medicine(3,"感冒灵颗粒","功能主治：解热镇痛。头痛 ,清热。"));
        String data4  = JsonUtil.obj2JsonData(new Medicine(4,"感冒  灵胶囊","功能主治：银花感冒颗粒 ，头痛,清热，解表，利咽。"));
        String data5  = JsonUtil.obj2JsonData(new Medicine(5,"仁和 感冒 颗粒","功能主治：疏风清热，宣肺止咳,解表清热，止咳化痰。"));
        list.add(data1);
        list.add(data2);
        list.add(data3);
        list.add(data4);
        list.add(data5);
        return list;
    }
}

package com.es;

import java.io.IOException;

import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;

/**
 * 
 *
 *  @version ： 1.0
 *  
 *  @author  ： 苏若年              <a href="mailto:DennisIT@163.com">发送邮件</a>
 *    
 *  @since   ： 1.0        创建时间:    2013-4-8    上午11:34:56
 *     
 *  @function： TODO        
 *
 */
public class JsonUtil {

    /**
     * 实现将实体对象转换成json对象
     * @param medicine    Medicine对象
     * @return
     */
    public static String obj2JsonData(Medicine medicine){
        String jsonData = null;
        try {
            //使用XContentBuilder创建json数据
            XContentBuilder jsonBuild = XContentFactory.jsonBuilder();
            jsonBuild.startObject()
            .field("id",medicine.getId())
            .field("name", medicine.getName())
            .field("funciton",medicine.getFunction())
            .endObject();
            jsonData = jsonBuild.string();
            System.out.println(jsonData);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return jsonData;
    }

}

package com.es;

/**
 * 
 *
 *  @version ： 1.0
 *  
 *  @author  ： 苏若年              <a href="mailto:DennisIT@163.com">发送邮件</a>
 *    
 *  @since   ： 1.0        创建时间:    2013-4-8    下午04:51:03
 *     
 *  @function： TODO        
 *
 */
public class Medicine {

    private Integer id;
    private String name;
    private String function;

    public Medicine() {
        super();
    }

    public Medicine(Integer id, String name, String function) {
        super();
        this.id = id;
        this.name = name;
        this.function = function;
    }

    //getter and  setter ()
    public String getFunction() {
        return function;
    }

    public void setFunction(String function) {
        this.function = function;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

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