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import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.geo.GeoDistance;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.common.unit.DistanceUnit;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.GeoDistanceQueryBuilder;
import org.elasticsearch.index.query.GeoValidationMethod;
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.builder.SearchSourceBuilder;
import org.elasticsearch.search.sort.GeoDistanceSortBuilder;
import org.elasticsearch.search.sort.SortBuilders;
import org.elasticsearch.search.sort.SortOrder;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
es测试
*/
public class EsDemo
{
private static final RequestOptions COMMON_OPTIONS;
static {
RequestOptions.Builder builder = RequestOptions.DEFAULT.toBuilder();
// 默认缓存限制为100MB,此处修改为30MB。
builder.setHttpAsyncResponseConsumerFactory(
new HttpAsyncResponseConsumerFactory
.HeapBufferedResponseConsumerFactory(30 * 1024 * 1024));
COMMON_OPTIONS = builder.build();
}
protected RestHighLevelClient client = new RestHighLevelClient(
RestClient.builder(new HttpHost(“127.0.0.1”, 9200, “http”)));;
private String indexName = “hbp”;
private String type = “_doc”;
//从ES中查询数据
@Test
public void test1() throws IOException {
Integer pageSize = 10;
Integer PageNum = 0;
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
BoolQueryBuilder bq = QueryBuilders.boolQuery();
//按时间范围查询
QueryBuilder dateBuilder = QueryBuilders.rangeQuery(“pub_date”)
.gte(“2020-09-01 10:30:00”).lte(“2020-09-02 13:50:00”).format(“yyyy-MM-dd HH:mm:ss”);//时间范围查询
//根据id查询
List idList = new ArrayList();
idList.add(“1”);
idList.add(“2”);
idList.add(“3”);
// idList.add(“4”);
// idList.add(“5”);
QueryBuilder idBuilder = QueryBuilders.termsQuery(“_id”, idList);
// 以某点为中心,搜索指定范围
GeoDistanceQueryBuilder distanceQueryBuilder = new GeoDistanceQueryBuilder(“location”);
distanceQueryBuilder.point(39.662263, 118.197815);
//查询单位:km
distanceQueryBuilder.distance(“6”, DistanceUnit.KILOMETERS);
//构建检索
/*这里说明一下,distanceQueryBuilder就是距离查询条件,idBuilder就是id过滤条件,
dateBuilder就是时间范围查询条件,可以定义一个或多个条件(QueryBuilder),下面的
排序也是同理,可以构造多个sortBuilder*/
QueryBuilder query = bq
// .filter(distanceQueryBuilder)
// .must(idBuilder)
.filter(dateBuilder)
;
searchSourceBuilder.query(query);
//按时间排序
// searchSourceBuilder.sort(“pub_date”, SortOrder.DESC);
//按距离排序
GeoDistanceSortBuilder distanceSort = SortBuilders.geoDistanceSort(“location”, 39.662263, 118.197815);
distanceSort.order(SortOrder.ASC);
distanceSort.geoDistance(GeoDistance.ARC);
distanceSort.unit(DistanceUnit.KILOMETERS);
distanceSort.validation(GeoValidationMethod.STRICT);
searchSourceBuilder.sort(distanceSort);
//查询es数据
searchSourceBuilder.from(PageNum);
searchSourceBuilder.size(pageSize);
searchSourceBuilder.timeout(new TimeValue(100,TimeUnit.SECONDS));
SearchRequest searchRequest = new SearchRequest(“hbp”);
searchRequest.source(searchSourceBuilder);
SearchResponse response = client.search(searchRequest, RequestOptions.DEFAULT);
SearchHits hits = response.getHits();
for(SearchHit hit : hits){
System.out.println(hit.getSourceAsString());
System.out.println(hit.getSortValues()[0]);//获取排序的距离,index为排序的位置
}
//get方式数据查询 ,参数为Index,type和id
// GetRequest request = new GetRequest(indexName, “7”);
// GetResponse getResponse1 = client.get(request, COMMON_OPTIONS);
// System.out.println(getResponse1.getSourceAsString());
client.close();
}
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