<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>transport</artifactId>
<version>5.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.7</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
import com.fasterxml.jackson.databind.ObjectMapper;
import org.elasticsearch.action.bulk.BulkProcessor;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.get.MultiGetItemResponse;
import org.elasticsearch.action.get.MultiGetResponse;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequestBuilder;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.search.SearchType;
import org.elasticsearch.action.update.UpdateRequest;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.common.unit.ByteSizeValue;
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.QueryBuilders;
import org.elasticsearch.index.reindex.BulkIndexByScrollResponse;
import org.elasticsearch.index.reindex.DeleteByQueryAction;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.aggregations.AggregationBuilders;
import org.elasticsearch.search.aggregations.bucket.terms.Terms;
import org.elasticsearch.search.aggregations.metrics.sum.Sum;
import org.elasticsearch.search.sort.SortOrder;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.junit.Test;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
/**
* Package: Description: (java 操作es) Created by byte-zbs on
* 2017 05 2017/5/4 17:16.
*
* @version:1.0.0
*/
public class ESDemo
{
/**
* 插入操作
*/
@Test
public void test1()
{
// 集群设置
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
// 构建json
XContentBuilder builder = XContentFactory.jsonBuilder()
.startObject().field("user", "国")
.field("postDate", new Date())
.field("age",23)
.field("message", "trying out Elastics").endObject();
// client.prepareIndex().setSource()
IndexResponse indexResponse = client.prepareIndex("test", "test")
.setSource(builder).get();
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* 根据id查询
*/
@Test
public void test2()
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
GetResponse getResponse = client
.prepareGet("test", "testxx", "AVvSzcIDCfxdfRyu9_r3")
.setOperationThreaded(false).get();
Map<String, Object> map = getResponse.getSource();
for (String string : map.keySet())
{
System.out.println(map.get(string));
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* 删除操作
*/
@Test
public void test3()
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
BulkIndexByScrollResponse response = DeleteByQueryAction.INSTANCE.newRequestBuilder(client).filter(
QueryBuilders.matchQuery("user","更新名字")).source("test").get();
long l = response.getDeleted();
System.out.println(l);
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* 更新操作
*/
@Test
public void test4()
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
UpdateRequest updateRequest = new UpdateRequest();
updateRequest.index("test");
updateRequest.type("test");
updateRequest.id("AVvS9BWwCfxdfRyu9_sB");
updateRequest.doc(XContentFactory.jsonBuilder().startObject().field("user","更新名字").endObject());
UpdateResponse response = client.update(updateRequest).get();
}
catch (Exception e)
{
e.printStackTrace();
}
}
@Test
public void test5()
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
MultiGetResponse responses = client.prepareMultiGet().add("test","test","AVvS8-mRCfxdfRyu9_sA","AVvS9BWwCfxdfRyu9_sB").get();
for (MultiGetItemResponse multiGetItemResponses:responses)
{
GetResponse getResponse = multiGetItemResponses.getResponse();
if (getResponse.isExists())
{
System.out.println(getResponse.getSourceAsString());
}
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
SearchResponse searchResponse = client.prepareSearch("test").setTypes("test")
.setPostFilter(QueryBuilders.rangeQuery("age").from(23).to(30))
.addSort("age", SortOrder.ASC).execute().actionGet();
System.out.println(searchResponse.toString());
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* 聚合
*/
@Test
public void test8()
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
SearchResponse searchResponse = client.prepareSearch("test").setTypes("test")
.setQuery(QueryBuilders.matchAllQuery())
.setSearchType(SearchType.QUERY_THEN_FETCH)
.addAggregation(AggregationBuilders.terms("group_age")
.field("age").subAggregation(AggregationBuilders.sum("sum_age").field("age")))//根据age分组，默认返回10，size(0)也是10
.get();
Terms terms = searchResponse.getAggregations().get("group_age");
List<Terms.Bucket> buckets = terms.getBuckets();
for(Terms.Bucket bt : buckets)
{
Sum sum = bt.getAggregations().get("sum_age");
System.out.println(sum.getValue() + "===" + sum.getName() );
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* 插入对象操作
* @param user
*/
public static void test9(User user)
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
ObjectMapper mapper = new ObjectMapper();
byte[] bytes = mapper.writeValueAsBytes(user);
IndexResponse indexResponse = client.prepareIndex("test","test").setSource(bytes).setId("1").execute().actionGet();
System.out.println(indexResponse.status()); //CREATED
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* 区间查询
* @param start
* @param end
* @return
*/
public static List<String> test10(int start,int end)
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
List<String> list = new ArrayList<>();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
SearchResponse searchResponse = client.prepareSearch("test").setTypes("test").setPostFilter(QueryBuilders.rangeQuery("age")).execute().actionGet();
SearchHits searchHits = searchResponse.getHits();
SearchHit[] searchHits1 = searchHits.hits();
for (SearchHit searchHitFields:searchHits1)
{
list.add(searchHitFields.getSourceAsString());
}
}
catch (Exception e)
{
e.printStackTrace();
}
return list;
}
/**
* 排序
* @param age
*/
public static void test11(String age)
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
List<String> list = new ArrayList<>();
try
{
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
SearchResponse searchResponse = client.prepareSearch("test").setTypes("test").addSort("age",SortOrder.ASC).execute().actionGet();
SearchHits searchHits = searchResponse.getHits();
SearchHit[] searchHits1 = searchHits.hits();
for (SearchHit searchHitFields:searchHits1)
{
System.out.println(searchHitFields.getSourceAsString());
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
@Test
public void queryNewAnswerByhours(){
try
{
Settings settings = Settings.builder().put("cluster.name", "mytest")
.build();
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(
InetAddress.getByName("192.168.0.213"), 9300));
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
SearchRequestBuilder searchRequestBuilder = client.prepareSearch("test");
searchRequestBuilder.setTypes("test");
String startTime ="2017-05-01 12:00:00";
String endTime = "2017-05-05 12:00:00";
Date date = TimeParse.stringToDate(startTime,"yyyy-MM-dd HH:mm:ss");
Date dateend = TimeParse.stringToDate(endTime,"yyyy-MM-dd HH:mm:ss");
boolQueryBuilder.must(QueryBuilders.rangeQuery("postDate").gt(date).lte(dateend));
searchRequestBuilder
.setPostFilter(QueryBuilders.rangeQuery("postDate").gte(date).lte(dateend));
SearchResponse r = searchRequestBuilder.get();
SearchHits searchHits = r.getHits();
SearchHit[] SS = searchHits.hits();
for (SearchHit searchHitFields:SS)
{
System.out.println(searchHitFields.getSourceAsString());
}
}
catch (Exception e)
{
}
/**
* 分页查询 因为普通的分页仅仅是1W条数据 大量的数据获取需要scroll来获取相当于游标的方式
*/
public static void queryNewAnswerByhours(TransportClient client){
SearchResponse scrollResponse = client.prepareSearch("test").setTypes("test")
.setQuery(QueryBuilders.matchAllQuery()).setPostFilter(QueryBuilders.rangeQuery("time").gte("2017-05-01").lte("2017-05-07"))
.setSize(10000).setScroll(TimeValue.timeValueMinutes(1))
.execute().actionGet();
long count = scrollResponse.getHits().getTotalHits();
for(int i=0,sum=0; sum<count; i++){
scrollResponse = client.prepareSearchScroll(scrollResponse.getScrollId())
.setScroll(TimeValue.timeValueMinutes(8))
.execute().actionGet();
sum += scrollResponse.getHits().hits().length;
SearchHit[] SS = scrollResponse.getHits().hits();
for (SearchHit searchHitFields:SS)
{
System.out.println(searchHitFields.getId());
}
System.out.println("总量"+count+" 已经查到"+sum);
}
}
public static void main(String[] args)
{
User user = new User("虾米2-update-2",new Date(),40);
test11("age");
}
}
