elastaicsearch用java RestHighLevelClient 方式（三）
maven 的pom.xml如下
4.0.0
com.ultrapower.es
RestHighLevelClient
1.0-SNAPSHOT
UTF-8
1.8
1.8
org.elasticsearch
elasticsearch
6.1.1
org.elasticsearch.client
elasticsearch-rest-high-level-client
6.1.1
org.apache.logging.log4j
log4j-core
2.8.2
org.apache.logging.log4j
log4j-api
2.8.2
com.google.code.gson
gson
2.8.1
junit
junit
4.10
客户端java语言
import org.apache.http.HttpHost;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
/**
* @author xiefg
* @create 2018-01-05 14:10
* @desc
**/
public class RestClientFactory {
private static String HOST="192.168.170.69";
private static int PORT = 9200;
private static final String SCHEMA = "http";
private static final int CONNECT_TIME_OUT = 1000;
private static final int SOCKET_TIME_OUT = 30000;
private static final int CONNECTION_REQUEST_TIME_OUT = 500;
private static final int MAX_CONNECT_NUM = 100;
private static final int MAX_CONNECT_PER_ROUTE = 100;
private static HttpHost HTTP_HOST=null;
private static boolean uniqueConnectTimeConfig = false;
private static boolean uniqueConnectNumConfig = true;
private static RestClientBuilder builder;
private static RestClient restClient;
private static RestHighLevelClient restHighLevelClient;
public static void init(){
// HOST = Configuration.getProperty("esHost");
// PORT = Integer.parseInt(Configuration.getProperty("esPort"));
if(HTTP_HOST==null){
HTTP_HOST=new HttpHost(HOST,PORT,SCHEMA);
}
builder = RestClient.builder(HTTP_HOST);
if(uniqueConnectTimeConfig){
setConnectTimeOutConfig();
}
if(uniqueConnectNumConfig){
setMutiConnectConfig();
}
restClient = builder.build();
restHighLevelClient = new RestHighLevelClient(builder);
}
/**
* 主要关于异步httpclient的连接延时配置
*/
public static void setConnectTimeOutConfig(){
builder.setRequestConfigCallback(requestConfigBuilder -> {
requestConfigBuilder.setConnectTimeout(CONNECT_TIME_OUT);
requestConfigBuilder.setSocketTimeout(SOCKET_TIME_OUT);
requestConfigBuilder.setConnectionRequestTimeout(CONNECTION_REQUEST_TIME_OUT);
return requestConfigBuilder;
});
}
/**
* 主要关于异步httpclient的连接数配置
*/
public static void setMutiConnectConfig(){
builder.setHttpClientConfigCallback(httpClientBuilder -> {
httpClientBuilder.setMaxConnTotal(MAX_CONNECT_NUM);
httpClientBuilder.setMaxConnPerRoute(MAX_CONNECT_PER_ROUTE);
return httpClientBuilder;
});
}
public static RestClient getClient(){
return restClient;
}
public static RestHighLevelClient getHighLevelClient(){
if(restHighLevelClient==null){
init();
}
return restHighLevelClient;
}
public static void close() {
if (restHighLevelClient != null) {
try {
restHighLevelClient.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.*;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.sort.FieldSortBuilder;
import org.elasticsearch.search.sort.SortBuilders;
import org.elasticsearch.search.sort.SortOrder;
import java.io.IOException;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
/**
* @author xiefg
* @create 2018-01-05 9:38
* @desc
**/
public class EsIndexDemo {
/**
* 同步获取操作结果
*/
public static IndexResponse postRequest(String index, String type, String id, String jsonSource)
throws Exception {
// 构建请求
IndexRequest request = new IndexRequest(index, type, id);
// 将保存数据以JSON格式关联到请求
request.source(jsonSource, XContentType.JSON);
// Java客户端发起保存数据请求
IndexResponse response = RestClientFactory.getHighLevelClient().index(request);
// 等待结果
System.out.println(response);
return response;
}
/**
* @param keyword1 关键字1
* @param keyword2 关键字2
* @param startDate 起始时间
* @param endDate 终止时间
*
**/
public static SearchResponse pageQueryRequest(String keyword1, String keyword2, String startDate, String endDate,
int start, int size){
RestHighLevelClient client = RestClientFactory.getHighLevelClient();
// 这个sourcebuilder就类似于查询语句中最外层的部分。包括查询分页的起始，
// 查询语句的核心，查询结果的排序，查询结果截取部分返回等一系列配置
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
// 结果开始处
sourceBuilder.from(start);
// 查询结果终止处
sourceBuilder.size(size);
// 查询的等待时间
sourceBuilder.timeout(new TimeValue(60, TimeUnit.SECONDS));
MatchQueryBuilder matchbuilder;
matchbuilder = QueryBuilders.matchQuery("message", keyword1+" "+keyword2);
// 同时满足两个关键字
matchbuilder.operator(Operator.AND);
// 查询在时间区间范围内的结果
RangeQueryBuilder rangbuilder = QueryBuilders.rangeQuery("date");
if(!"".equals(startDate)){
rangbuilder.gte(startDate);
}
if(!"".equals(endDate)){
rangbuilder.lte(endDate);
}
// 等同于bool，将两个查询合并
BoolQueryBuilder boolBuilder = QueryBuilders.boolQuery();
boolBuilder.must(matchbuilder);
boolBuilder.must(rangbuilder);
// 排序
FieldSortBuilder fsb = SortBuilders.fieldSort("date");
fsb.order(SortOrder.DESC);
sourceBuilder.sort(fsb);
sourceBuilder.query(boolBuilder);
//System.out.println(sourceBuilder);
SearchRequest searchRequest = new SearchRequest("request");
searchRequest.types("doc");
searchRequest.source(sourceBuilder);
SearchResponse response = null;
try {
response = client.search(searchRequest);
SearchHits hits= response.getHits();
int totalRecordNum= (int) hits.getTotalHits();
Gson gson = new GsonBuilder()
.setDateFormat("yyyy-MM-dd HH:mm:ss:SSS")
.create();
for (SearchHit searchHit : hits) {
Map source = searchHit.getSourceAsMap();
Object entity =gson.fromJson(gson.toJson(source),User.class);
System.out.println(entity);
}
client.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return response;
}
public static void main(String[] args) {
String jsonString = "{" + "\"user\":\"xiefg\"," + "\"date\":\"2018-01-12\","
+ "\"message\":\"trying out Elasticsearch\"" + "}";
try {
for (int i=0;i<30;i++){
postRequest("request", "doc", UUID.randomUUID()+"", jsonString);
}
RestClientFactory.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
* @author xiefg
* @create 2018-01-05 18:09
* @desc
**/
public class User {
private String user;
private String date;
private String message;
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
@Override
public String toString() {
return "User{" +
"user='" + user + '\'' +
", date='" + date + '\'' +
", message='" + message + '\'' +
'}';
}
}
import org.junit.Test;
/**
* @author xiefg
* @create 2018-01-05 10:45
* @desc
**/
public class ESTest {
@Test
public void queryKeyWorld(){
EsIndexDemo.pageQueryRequest("trying","out","2018-01-12","2018-01-12",0,9);
}
}