spring boot整合 RestHighLevelClient 版本ElasticSearch7.3

配置类

package com.rest.utils.esutils;

import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
import org.apache.http.impl.nio.reactor.IOReactorConfig;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @ClassName a
 * @Description: TODO
 * @Author majt
 * @Date 2019/9/26
 * @Version V1.0
 **/
@Configuration
public class ESConfig {
    @Value("${es.username}")
    public String ES_USER = "patentv4";
    @Value("${es.password}")
    public String ES_PASSWORD = "patentv4";
    @Value("${es.ip}")
    public String ES_IP = "47.100.136.202";
    @Value("${es.port}")
    public int ES_PORT = 9205;
    public static final String POST = "POST";
    public static final String GET = "GET";
    public static final String PUT = "PUT";
    public static final String DELETE = "DELETE";


    @Bean("client")
    public RestHighLevelClient restClient() {
        RestHighLevelClient restHighLevelClient = new RestHighLevelClient(
                initRestClient());
        return restHighLevelClient;
    }


    @Bean("esLowClient")
    public RestClient restLowClient() {
        return initRestClient().build();
    }


    public RestClientBuilder initRestClient() {
        CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        System.out.println(ES_USER);
        credentialsProvider.setCredentials(
                AuthScope.ANY,
                new UsernamePasswordCredentials(ES_USER, ES_PASSWORD));
        RestClientBuilder restClientBuilder = RestClient.builder(new HttpHost(ES_IP, ES_PORT, "http"))
                //设置超时时间
                .setRequestConfigCallback(
                        requestConfigBuilder -> requestConfigBuilder
                                .setConnectTimeout(5000)
                                .setSocketTimeout(60000)
                )
                .setHttpClientConfigCallback(httpClientBuilder -> {
                    //设置线程数
                    HttpAsyncClientBuilder httpAsyncClientBuilder = httpClientBuilder.setDefaultIOReactorConfig(
                            IOReactorConfig.custom()
                                    .setIoThreadCount(1)
                                    .build());
                    //设置认证信息
                    httpAsyncClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
                    return httpAsyncClientBuilder;
                });
        return restClientBuilder;
    }

}

工具类

package com.rest.utils.esutils;

import com.alibaba.fastjson.JSONObject;
import com.rest.common.ApplicationContextManagerial;
import lombok.extern.log4j.Log4j2;
import org.apache.http.util.EntityUtils;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.get.GetResponse;
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.action.support.master.AcknowledgedResponse;
import org.elasticsearch.client.*;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.elasticsearch.client.indices.CreateIndexResponse;
import org.elasticsearch.client.indices.GetIndexRequest;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.TermQueryBuilder;
import org.elasticsearch.index.query.TermsQueryBuilder;
import org.elasticsearch.index.reindex.BulkByScrollResponse;
import org.elasticsearch.index.reindex.DeleteByQueryRequest;
import org.elasticsearch.search.builder.SearchSourceBuilder;

import java.io.IOException;

/**
 * @author: create by majt
 * @version: v1.0
 * @description: es工具类
 * @date:2019/10/9 14:27
 */
@Log4j2
public class ESUtil {

    private static RestClient esLowClient;

    public static RestClient getEsLowClient() {
        if (esLowClient == null) {
            esLowClient = ApplicationContextManagerial.getBean("esLowClient", RestClient.class);
        }
        if (esLowClient == null) {
            throw new RuntimeException("获取es低级客户端实例出错");
        }
        return esLowClient;
    }

    /**
     * 删除文档
     *
     * @param client
     * @param index
     * @param docId
     * @return
     */
    public static DeleteResponse deleteDocument(RestHighLevelClient client, String index, String docId) {
        DeleteRequest deleteRequest = new DeleteRequest(index, docId);
        DeleteResponse delete = null;
        try {
            delete = client.delete(deleteRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return delete;
    }

    /**
     * 根据query条件删除
     *
     * @param client
     * @param indices
     * @param fieldName
     * @param value
     * @return
     */
    public static BulkByScrollResponse deleteByQuery(RestHighLevelClient client, String[] indices, String fieldName, String value) {
        DeleteByQueryRequest request = new DeleteByQueryRequest(indices);
        TermQueryBuilder termQueryBuilder = new TermQueryBuilder(fieldName, value);
        request.setQuery(termQueryBuilder);
        request.setConflicts("proceed");
        request.setRouting("=cat");
        request.setRefresh(true);
        BulkByScrollResponse bulkByScrollResponse = null;
        try {
            bulkByScrollResponse = client.deleteByQuery(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return bulkByScrollResponse;
    }

    /**
     * 清空索引
     *
     * @param client
     * @param indices
     * @return
     */
    public static BulkByScrollResponse clearIndices(RestHighLevelClient client, String[] indices) {
        DeleteByQueryRequest request = new DeleteByQueryRequest(indices);
        request.setQuery(QueryBuilders.matchAllQuery());
        BulkByScrollResponse bulkByScrollResponse = null;
        try {
            bulkByScrollResponse = client.deleteByQuery(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return bulkByScrollResponse;
    }


    /**
     * 根据id查询文档
     *
     * @param client
     * @param index
     * @param docId
     * @return
     */
    public static GetResponse getDocument(RestHighLevelClient client, String index, String docId) {
        GetRequest getRequest = new GetRequest(index, docId);
        GetResponse getResponse = null;
        try {
            getResponse = client.get(getRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return getResponse;
    }

    /**
     * 判断文档是否存在
     *
     * @param client
     * @param index
     * @param docId
     * @return
     */
    public static boolean existsDocument(RestHighLevelClient client, String index, String docId) {
        GetRequest getRequest = new GetRequest(index, docId);
        boolean exists = false;
        try {
            exists = client.exists(getRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return exists;
    }

    /**
     * 根据指定字段的多值查询
     *
     * @param client
     * @param index
     * @param field
     * @param values
     * @param includes 结果中包含的字段
     * @param excludes 结果中排除的字段
     * @return
     */
    public static SearchResponse search(RestHighLevelClient client, String index, String field, String[] values, String[] includes, String[] excludes) {
        SearchRequest searchRequest = new SearchRequest(index);
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
        sourceBuilder.fetchSource(includes, excludes);
        sourceBuilder.from(0);
        sourceBuilder.size(20);
        TermsQueryBuilder queryBuilder = QueryBuilders.termsQuery(field, values);
        sourceBuilder.query(queryBuilder);
        searchRequest.source(sourceBuilder);
        SearchResponse response = doSearch(client, searchRequest);
        return response;
    }

    /**
     * 新增文档
     *
     * @param client
     * @param index
     * @param jsonString
     * @param _id
     * @return
     */
    public static IndexResponse add(RestHighLevelClient client, String index, String jsonString, String _id) {
        IndexRequest request = new IndexRequest(index);
        request.id(_id);
        request.source(jsonString, XContentType.JSON);
        IndexResponse response = null;
        try {
            response = client.index(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return response;
    }

    /**
     * 判断索引是否存在
     *
     * @param index
     * @return
     */
    public static boolean existsIndex(RestHighLevelClient client, String... index) {
        GetIndexRequest request = new GetIndexRequest(index);
        boolean exists = false;
        try {
            exists = client.indices().exists(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }

        return exists;
    }

    /**
     * 创建索引
     *
     * @param client
     * @param index
     * @param source
     * @return
     */
    public static CreateIndexResponse createIndex(RestHighLevelClient client, String index, String source) {
        CreateIndexRequest request = new CreateIndexRequest(index);
        request.source(source, XContentType.JSON);
        CreateIndexResponse createIndexResponse = null;
        try {
            createIndexResponse = client.indices().create(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return createIndexResponse;
    }


    /**
     * 释放资源
     *
     * @param client
     */
    public static void close(RestHighLevelClient client) {
        try {
            client.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * 统计
     *
     * @param client
     * @param dsl
     * @param indices
     * @return
     */
    public static int queryCount(RestHighLevelClient client, String dsl, String... indices) {
        SearchResponse response = wrapperSearch(client, dsl, null, null, 0, 0, indices);
        return Integer.parseInt(response.getHits().getTotalHits().value + "");
    }

    /**
     * 检索式检索
     *
     * @param client
     * @param dsl
     * @param indices
     * @return
     */
    public static SearchResponse wrapperSearch(RestHighLevelClient client, String dsl, String[] includes, String[] excludes, int from, int size, String... indices) {
        SearchRequest request = new SearchRequest(indices);
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
        if (size != 0) {
            sourceBuilder.from(from < 0 ? 0 : from).size(size);
        }
        sourceBuilder.fetchSource(includes, excludes);
        sourceBuilder.query(QueryBuilders.wrapperQuery(dsl));
        request.source(sourceBuilder);
        SearchResponse response = doSearch(client, request);
        return response;
    }

    /**
     * 执行查询
     *
     * @param client
     * @param request
     * @return
     */
    private static SearchResponse doSearch(RestHighLevelClient client, SearchRequest request) {
        try {
            return client.search(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 删除索引
     *
     * @param client
     * @param indices
     * @return
     */
    public static AcknowledgedResponse deleteIndex(RestHighLevelClient client, String... indices) {
        DeleteIndexRequest request = new DeleteIndexRequest(indices);
        AcknowledgedResponse response = null;
        try {
            response = client.indices().delete(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return response;
    }


    /**
     * es低级客户端方法
     */


    public JSONObject send(String method, String index, String urlSuffix, String paramBodey) {
//        Map params = Collections.emptyMap();
        if (paramBodey == null) {
            paramBodey = "";
        }
//        HttpEntity entity = new NStringEntity(paramBodey, ContentType.APPLICATION_JSON);
        Response response = null;
        Request request = new Request(
                method,
                index + urlSuffix);
        request.setJsonEntity(paramBodey);
        try {
//            response = getEsLowClient().performRequest(method, index + urlSuffix, params, entity);
            response = getEsLowClient().performRequest(request);
        } catch (IOException e) {
            log.error("访问es出错：\n" +
                            "请求参数："
                            + index + urlSuffix + "\n"
                            + paramBodey + "\n"
                            + "错误详情信息：\n"
                    , e);
            return null;
        }
        String responseBody = null;
        try {
            responseBody = EntityUtils.toString(response.getEntity());
        } catch (IOException e) {
            log.error("解析es返回结果出错：\n", e);
        }
        return JSONObject.parseObject(responseBody);
    }

}

测试类

package com.rest.ipmsv4.inventor.controller;

import cn.hutool.json.JSONUtil;
import com.rest.utils.ESClient.ESUtil;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
import org.apache.http.impl.nio.reactor.IOReactorConfig;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.core.CountRequest;
import org.elasticsearch.index.query.*;
import org.elasticsearch.index.reindex.DeleteByQueryRequest;
import org.elasticsearch.script.ScriptType;
import org.elasticsearch.script.mustache.SearchTemplateRequest;
import org.elasticsearch.script.mustache.SearchTemplateResponse;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.builder.SearchSourceBuilder;

import java.io.IOException;
import java.util.*;

/**
 * @author: create by majt
 * @version: v1.0
 * @description: com.rest.ipmsv4.inventor.controller
 * @date:2019/9/26 17:09
 */
public class QueryService {
    private static RestHighLevelClient client;
    public static String ES_USER = "user";
    public static String ES_PASSWORD = "pass";
    public static String ES_IP = "192.168.1.1";
    public static int ES_PORT = 9200;

    public static void main(String[] args) throws IOException {
//        searchRequest();
//        getRequest();
//        existsRequest();
//        String[] values = new String[]{"AUE8cW0B7fVRN7wPLP7j", "BEE8cW0B7fVRN7wPLf5Q"};
//        search(client,"test_517ceb5b-38a4-448f-9859-9967cee634a5","_id",values);
//        deleteRequest();
//        String dsl = "{\"bool\":{\"should\":[{\"match_phrase\":{\"apply_people\":\"武汉金运激光股份有限公司\"}}]}}";
//        query(dsl, "test_517ceb5b-38a4-448f-9859-9967cee634a5");
//        String script = "if(ctx._source.age == 22){ctx._source.name+='张三';}";
//        ESUtil.updateByQuery(client,script,"test");
//        GetResponse document = ESUtil.getDocument(client, "test", "apolz20B7fVRN7wPj8_K");
//        List> friend = (List>) document.getSourceAsMap().get("friend");
//        System.out.println(friend);
//        Map ff = new HashMap<>();
//        ff.put("name","小八");
//        ff.put("age",55);
//        Map ff1 = new HashMap<>();
//        ff1.put("name","小九");
//        ff1.put("age",56);
//        List> f = new ArrayList<>();
//        f.add(ff);
//        f.add(ff1);
//        ESUtil.update(client,"test","9ZDHyW0B7fVRN7wPIDTv","friend",f,"age",55);

        String[] includes = {"inventor_info"};
        SearchResponse response = ESUtil.matchSearch(client, "test-basic-patent", "apply_num", "CN201721818387.7", includes, null);
        System.out.println(response.getHits().getHits()[0]);
        client.close();
    }

    /**
     * 删除请求
     */
    private static void deleteRequest() throws IOException {
        DeleteByQueryRequest request = new DeleteByQueryRequest("test");
        request.setQuery(QueryBuilders.matchAllQuery());
        client.deleteByQuery(request, RequestOptions.DEFAULT);
    }

    /**
     * get查询
     *
     * @throws IOException
     */
    private static void getRequest() throws IOException {
        GetRequest getRequest = new GetRequest("test_basic-patent2", "dEJZcW0B7fVRN7wPxn2D");
        GetResponse documentFields = client.get(getRequest, RequestOptions.DEFAULT);
        String sourceAsString = documentFields.getSourceAsString();
        System.out.println(sourceAsString);
    }

    /**
     * 是否存在
     */
    private static void existsRequest() throws IOException {
        GetRequest getRequest = new GetRequest("test_basic-patent2", "dEJZcW0B7fVRN7wPxn2D");
        boolean exists = client.exists(getRequest, RequestOptions.DEFAULT);
        System.out.println(exists);
    }

    /**
     * search 查询
     *
     * @throws IOException
     */
    private static void searchRequest() throws IOException {
        SearchRequest searchRequest = new SearchRequest("test_basic-patent2");
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();

        //相似匹配
        QueryBuilder queryBuilder = QueryBuilders.matchAllQuery();
        queryBuilder = QueryBuilders.matchQuery("agent", "黄");
        //精准匹配
//        queryBuilder = QueryBuilders.termQuery("_id", "dMDJZ20Bnib7SwgvAyVy");

        System.out.printf("查询语句: %s", queryBuilder);
        searchSourceBuilder.query(queryBuilder);
        SearchRequest source = searchRequest.source(searchSourceBuilder);
        SearchResponse search = client.search(source, RequestOptions.DEFAULT);
        System.out.printf("\n查询结果: %s", JSONUtil.formatJsonStr(search.toString()));
    }

    public static SearchResponse search(RestHighLevelClient client, String index, String field, String[] values) {
        SearchRequest searchRequest = new SearchRequest(index);
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();

        sourceBuilder.fetchSource(new String[]{"name"}, null);
        TermsQueryBuilder queryBuilder = QueryBuilders.termsQuery(field, values);
        sourceBuilder.query(queryBuilder);
        searchRequest.source(sourceBuilder);
        SearchResponse response = null;
        try {
            response = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        List<SearchHit> searchHits = Arrays.asList(response.getHits().getHits());
        searchHits.forEach(element -> {
            System.out.println(element.getId());
            System.out.println(element.getSourceAsMap().get("name"));
        });

        return response;
    }

    public static void query(String dsl, String... indices) {
        SearchRequest request = new SearchRequest(indices);
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
        sourceBuilder.query(QueryBuilders.wrapperQuery(dsl));
        request.source(sourceBuilder);
        SearchResponse response = null;
        try {
            response = client.search(request, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println(response.getHits().getTotalHits().value);
    }


    static {
        client = new RestHighLevelClient(initRestClient());
    }


    public static RestClientBuilder initRestClient() {
        CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        credentialsProvider.setCredentials(
                AuthScope.ANY,
                new UsernamePasswordCredentials(ES_USER, ES_PASSWORD));
        RestClientBuilder restClientBuilder = RestClient.builder(new HttpHost(ES_IP, ES_PORT, "http"))
                //设置超时时间
                .setRequestConfigCallback(
                        requestConfigBuilder -> requestConfigBuilder
                                .setConnectTimeout(5000)
                                .setSocketTimeout(60000)
                )
                .setHttpClientConfigCallback(httpClientBuilder -> {
                    //设置线程数
                    HttpAsyncClientBuilder httpAsyncClientBuilder = httpClientBuilder.setDefaultIOReactorConfig(
                            IOReactorConfig.custom()
                                    .setIoThreadCount(1)
                                    .build());
                    //设置认证信息
                    httpAsyncClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
                    return httpAsyncClientBuilder;
                });
        return restClientBuilder;
    }


}