Es的集成

package cn.itsource;

import org.elasticsearch.action.bulk.BulkRequestBuilder;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.delete.DeleteRequestBuilder;
import org.elasticsearch.action.get.GetRequestBuilder;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexRequestBuilder;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequestBuilder;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.update.UpdateRequestBuilder;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.sort.SortOrder;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.junit.Test;

import java.net.InetAddress;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class EsTest {

    //索引库
    private static  final String INDEX = "hrm";
    //索引类型
    private static  final String TYPE = "employee";

//    @Test
    public TransportClient getClient() throws Exception{

        // 创建配置对象Settings,并配置嗅探模式
        Settings settings = Settings.builder()
                .put("client.transport.sniff", true)
                .build();

        // 创建传输客户端，并且指定一个ip和端
        TransportClient client = new PreBuiltTransportClient(settings)
                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("127.0.0.1"),9300));

        //使用客户端操作
//        System.out.println(client);

        //关闭客户端
//        client.close();

        return client;
    }

    //add
    @Test
    public void add() throws Exception{

        //获取传输客户端
        TransportClient client = getClient();

        //操作
        //1 创建“创建文档的请求构建器”
        IndexRequestBuilder builder = client.prepareIndex(INDEX, TYPE, "1");
        //2 设置文档数据
        Map source = new HashMap<>();
        source.put("id",1L);
        source.put("name","yaosang");
        source.put("age",18);
        builder.setSource(source);
        //3 发请求-get请求方式发过去
        IndexResponse response = builder.get();
        System.out.println(response);

        //关闭
        client.close();
    }

    //getOne
    @Test
    public void testGetOne() throws Exception{
        //获取客户端
        TransportClient client = getClient();
        //获取请求构建起
        GetRequestBuilder builder = client.prepareGet(INDEX, TYPE, "1");
        //发请求
        GetResponse response = builder.get();
        System.out.println(response.getSource());
        //关闭客户端
        client.close();
    }

    //update
    @Test
    public void testUpdate() throws Exception{
        //获取客户端
        TransportClient client = getClient();
        //获取请求构建器  修改=先删除添加 局部更新(prepareUpdate)
        UpdateRequestBuilder builder = client.prepareUpdate(INDEX, TYPE, "1");
        Map source = new HashMap<>();
        source.put("id",1L);
        source.put("age",28);
        builder.setDoc(source);
        //发请求
        builder.get();
        //关闭客户端
        client.close();
    }

    //del

    @Test
    public void testDel() throws Exception{
        //获取客户端
        TransportClient client = getClient();
        //获取请求构建器
        DeleteRequestBuilder builder = client.prepareDelete(INDEX, TYPE, "1");
        //发请求
        builder.get();
        //关闭客户端
        client.close();
    }

    //批量操作 添加 删除 获取

    @Test
    public void testBulkAdd() throws Exception{
        //获取客户端
        TransportClient client = getClient();
        //创建批量操作构建器
        BulkRequestBuilder bulkBuilder = client.prepareBulk();
        //添加批量请求
        for (long i = 1; i <= 100; i++) {

            Map source = new HashMap<>();
            source.put("id",i);
            source.put("name","yao sang"+i);
            source.put("age",18+i);
            IndexRequestBuilder addBuilder = client.prepareIndex(INDEX, TYPE, i + "");
            addBuilder.setSource(source);

            bulkBuilder.add(addBuilder);
        }
        //请批量操作请求
        BulkResponse response = bulkBuilder.get();
        if (response.hasFailures()){
            System.out.println(response.buildFailureMessage());
        }
        //关闭客户端
        client.close();
    }

    //dsl=查询+过滤

   
    @Test
    public void testDsl() throws Exception{
        //获取搜索构建器
        TransportClient client = getClient();
        SearchRequestBuilder builder = client.prepareSearch(INDEX);
        builder.setTypes(TYPE);

        //构建查询条件和过滤条件
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery(); //query bool
        List must = boolQueryBuilder.must();
        must.add(QueryBuilders.matchQuery("name","yao")); //query bool must match

        List filter = boolQueryBuilder.filter();
        filter.add(QueryBuilders.rangeQuery("age").gte(50).lte(100)); //query bool filter range

        builder.setQuery(boolQueryBuilder);

        //排序
        builder.addSort("age", SortOrder.ASC);

        //分页
        builder.setFrom(10).setSize(10);

        //截取字段
        builder.setFetchSource(new String[]{"id","age"},null);

        //查询并获取响应结果
        SearchResponse response = builder.get();
        //从响应对象中获取数据 total datas
        SearchHits hits = response.getHits();
        long totalHits = hits.getTotalHits(); //查询到总数
        System.out.println("总数："+totalHits);
        SearchHit[] hitsHits = hits.getHits(); //查到数据
        for (SearchHit hitsHit : hitsHits) {
//            System.out.println("排名分数："+hitsHit.getScore());
            System.out.println("文档数据："+hitsHit.getSource());
        }

        //关闭客户端
        client.close();

    }
}