springboot2.1. es6.x集成封裝記錄

公司要搭建微服務項目，需要搭建es公共服務

安裝es

修改 elasticsearch.yml配置

network.host: 0.0.0.0
network.publish_host: 59.110.138.14
network.bind_host: 0.0.0.0
 

開始集成封裝

pom依賴

<!--es-->
<dependency>
    <groupId>org.elasticsearch</groupId>
    <artifactId>elasticsearch</artifactId>
    <version>6.2.3</version>
</dependency>
<dependency>
    <groupId>org.elasticsearch.client</groupId>
    <artifactId>transport</artifactId>
    <version>6.2.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.elasticsearch.plugin/transport-netty4-client -->
<dependency>
    <groupId>org.elasticsearch.plugin</groupId>
    <artifactId>transport-netty4-client</artifactId>
    <version>6.2.3</version>
</dependency>

配置類
@Configuration
public class ElasticsearchConfig {


    private static final Logger LOGGER = LoggerFactory.getLogger(ElasticsearchConfig.class);

    @Value("${elasticsearch.ip}")
    private String hostName;

    /**
     * 端口
     */
    @Value("${elasticsearch.port}")
    private String port;

    /**
     * 集羣名稱
     */
    @Value("${elasticsearch.cluster-name}")
    private String clusterName;

    /**
     * 連接池
     */
    @Value("${elasticsearch.pool}")
    private String poolSize;

    /**
     * Bean name default  函數名字
     *
     * @return
     */
    @Bean(name = "transportClient")
    public TransportClient transportClient() {
        LOGGER.info("Elasticsearch初始化開始。。。。。");
        LOGGER.info("注入"+hostName+port+poolSize+"cluster-name"+clusterName);
        TransportClient transportClient = null;
        try {
            // 配置信息
            Settings esSetting = Settings.builder()
                    .put("cluster.name", clusterName) //集羣名字
                    .put("client.transport.sniff", true)//增加嗅探機制，找到ES集羣
                    .put("thread_pool.search.size", Integer.parseInt(poolSize))//增加線程池個數，暫時設爲5
                    .build();
            //配置信息Settings自定義
            transportClient = new PreBuiltTransportClient(esSetting);
            TransportAddress transportAddress = new TransportAddress(InetAddress.getByName(hostName), Integer.valueOf(port));
            transportClient.addTransportAddresses(transportAddress);
        } catch (Exception e) {
            LOGGER.error("elasticsearch TransportClient create error!!", e);
        }
        return transportClient;
    }
}

工具類

package com.yxbl.dome.common.assembly.elasticserach.util;

import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexResponse;
import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsRequest;
import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsResponse;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.get.GetRequestBuilder;
import org.elasticsearch.action.get.GetResponse;
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.client.transport.TransportClient;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightBuilder;
import org.elasticsearch.search.sort.SortOrder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@Component
public class ElasticsearchUtil {

    private static final Logger LOGGER = LoggerFactory.getLogger(ElasticsearchUtil.class);

    @Autowired
    private TransportClient transportClient;

    private static TransportClient client;

    /**
     * @PostContruct是spring框架的註解
     * spring容器初始化的時候執行該方法
     */
    @PostConstruct
    public void init() {
        client = this.transportClient;
    }

    /**
     * 創建索引
     *
     * @param index
     * @return
     */
    public static boolean createIndex(String index) {
        if(!isIndexExist(index)){
            LOGGER.info("Index is not exits!");
        }
        CreateIndexResponse indexResponse = client.admin().indices().prepareCreate(index).execute().actionGet();
        LOGGER.info("執行建立成功？" + indexResponse.isAcknowledged());
        return indexResponse.isAcknowledged();
    }

    /**
     * 刪除索引
     *
     * @param index
     * @return
     */
    public static boolean deleteIndex(String index) {
        if(!isIndexExist(index)) {
            LOGGER.info("Index is not exits!");
        }
        DeleteIndexResponse dResponse = client.admin().indices().prepareDelete(index).execute().actionGet();
        if (dResponse.isAcknowledged()) {
            LOGGER.info("delete index " + index + "  successfully!");
        } else {
            LOGGER.info("Fail to delete index " + index);
        }
        return dResponse.isAcknowledged();
    }

    /**
     * 判斷索引是否存在
     *
     * @param index
     * @return
     */
    public static boolean isIndexExist(String index) {
        IndicesExistsResponse inExistsResponse = client.admin().indices().exists(new IndicesExistsRequest(index)).actionGet();
        if (inExistsResponse.isExists()) {
            LOGGER.info("Index [" + index + "] is exist!");
        } else {
            LOGGER.info("Index [" + index + "] is not exist!");
        }
        return inExistsResponse.isExists();
    }

    /**
     * 數據添加，正定ID
     *
     * @param jsonObject 要增加的數據
     * @param index      索引，類似數據庫
     * @param type       類型，類似表
     * @param id         數據ID
     * @return
     */
    public static String addData(JSONObject jsonObject, String index, String type, String id) {
        IndexResponse response = client.prepareIndex(index, type, id).setSource(jsonObject).get();
        LOGGER.info("addData response status:{},id:{}", response.status().getStatus(), response.getId());
        return response.getId();
    }
    /**
     * 數據添加
     *
     * @param jsonObject 要增加的數據
     * @param index      索引，類似數據庫
     * @param type       類型，類似表
     * @return
     */
    public static String addData(JSONObject jsonObject, String index, String type) {
        return addData(jsonObject, index, type, UUID.randomUUID().toString().replaceAll("-", "").toUpperCase());
    }

    /**
     * 通過ID刪除數據
     *
     * @param index 索引，類似數據庫
     * @param type  類型，類似表
     * @param id    數據ID
     */
    public static void deleteDataById(String index, String type, String id) {
        DeleteResponse response = client.prepareDelete(index, type, id).execute().actionGet();
        LOGGER.info("deleteDataById response status:{},id:{}", response.status().getStatus(), response.getId());
    }

    /**
     * 通過ID 更新數據
     *
     * @param jsonObject 要增加的數據
     * @param index      索引，類似數據庫
     * @param type       類型，類似表
     * @param id         數據ID
     * @return
     */
    public static void updateDataById(JSONObject jsonObject, String index, String type, String id) {
        UpdateRequest updateRequest = new UpdateRequest();
        updateRequest.index(index).type(type).id(id).doc(jsonObject);
        client.update(updateRequest);
    }

    /**
     * 通過ID獲取數據
     *
     * @param index  索引，類似數據庫
     * @param type   類型，類似表
     * @param id     數據ID
     * @param fields 需要顯示的字段，逗號分隔（缺省爲全部字段）
     * @return
     */
    public static Map<String,Object> searchDataById(String index, String type, String id, String fields) {
        GetRequestBuilder getRequestBuilder = client.prepareGet(index, type, id);
        if (StringUtils.isNotEmpty(fields)) {
            getRequestBuilder.setFetchSource(fields.split(","), null);
        }
        GetResponse getResponse = getRequestBuilder.execute().actionGet();
        return getResponse.getSource();
    }

    /**
     * 使用分詞查詢,並分頁
     *
     * @param index          索引名稱
     * @param type           類型名稱,可傳入多個type逗號分隔
     * @param startPage    當前頁
     * @param pageSize       每頁顯示條數
     * @param query          查詢條件
     * @param fields         需要顯示的字段，逗號分隔（缺省爲全部字段）
     * @param sortField      排序字段
     * @param highlightField 高亮字段
     * @return
     */
    public static EsPage searchDataPage(String index, String type, int startPage, int pageSize, QueryBuilder query, String fields, String sortField, String highlightField) {
        SearchRequestBuilder searchRequestBuilder = client.prepareSearch(index);
        if (StringUtils.isNotEmpty(type)) {
            searchRequestBuilder.setTypes(type.split(","));
        }
        searchRequestBuilder.setSearchType(SearchType.QUERY_THEN_FETCH);

        // 需要顯示的字段，逗號分隔（缺省爲全部字段）
        if (StringUtils.isNotEmpty(fields)) {
            searchRequestBuilder.setFetchSource(fields.split(","), null);
        }

        //排序字段
        if (StringUtils.isNotEmpty(sortField)) {
            searchRequestBuilder.addSort(sortField, SortOrder.DESC);
        }

        // 高亮（xxx=111,aaa=222）
        if (StringUtils.isNotEmpty(highlightField)) {
            HighlightBuilder highlightBuilder = new HighlightBuilder();

            //highlightBuilder.preTags("<span style='color:red' >");//設置前綴
            //highlightBuilder.postTags("</span>");//設置後綴

            // 設置高亮字段
            highlightBuilder.field(highlightField);
            searchRequestBuilder.highlighter(highlightBuilder);
        }

        //searchRequestBuilder.setQuery(QueryBuilders.matchAllQuery());
        searchRequestBuilder.setQuery(query);

        // 分頁應用
        searchRequestBuilder.setFrom(startPage).setSize(pageSize);

        // 設置是否按查詢匹配度排序
        searchRequestBuilder.setExplain(true);

        //打印的內容 可以在 Elasticsearch head 和 Kibana  上執行查詢
        LOGGER.info("\n{}", searchRequestBuilder);

        // 執行搜索,返回搜索響應信息
        SearchResponse searchResponse = searchRequestBuilder.execute().actionGet();

        long totalHits = searchResponse.getHits().totalHits;
        long length = searchResponse.getHits().getHits().length;

        LOGGER.debug("共查詢到[{}]條數據,處理數據條數[{}]", totalHits, length);

        if (searchResponse.status().getStatus() == 200) {
            // 解析對象
            List<Map<String, Object>> sourceList = setSearchResponse(searchResponse, highlightField);

            return new EsPage(startPage, pageSize, (int) totalHits, sourceList);
        }

        return null;

    }

    /**
     * 使用分詞查詢
     *
     * @param index          索引名稱
     * @param type           類型名稱,可傳入多個type逗號分隔
     * @param query          查詢條件
     * @param size           文檔大小限制
     * @param fields         需要顯示的字段，逗號分隔（缺省爲全部字段）
     * @param sortField      排序字段
     * @param highlightField 高亮字段
     * @return
     */
    public static List<Map<String, Object>> searchListData(String index, String type, QueryBuilder query, Integer size, String fields, String sortField, String highlightField) {

        SearchRequestBuilder searchRequestBuilder = client.prepareSearch(index);
        if (StringUtils.isNotEmpty(type)) {
            searchRequestBuilder.setTypes(type.split(","));
        }

        if (StringUtils.isNotEmpty(highlightField)) {
            HighlightBuilder highlightBuilder = new HighlightBuilder();
            // 設置高亮字段
            highlightBuilder.field(highlightField);
            searchRequestBuilder.highlighter(highlightBuilder);
        }

        searchRequestBuilder.setQuery(query);

        if (StringUtils.isNotEmpty(fields)) {
            searchRequestBuilder.setFetchSource(fields.split(","), null);
        }
        searchRequestBuilder.setFetchSource(true);

        if (StringUtils.isNotEmpty(sortField)) {
            searchRequestBuilder.addSort(sortField, SortOrder.DESC);
        }

        if (size != null && size > 0) {
            searchRequestBuilder.setSize(size);
        }

        //打印的內容 可以在 Elasticsearch head 和 Kibana  上執行查詢
        LOGGER.info("\n{}", searchRequestBuilder);

        SearchResponse searchResponse = searchRequestBuilder.execute().actionGet();

        long totalHits = searchResponse.getHits().totalHits;
        long length = searchResponse.getHits().getHits().length;

        LOGGER.info("共查詢到[{}]條數據,處理數據條數[{}]", totalHits, length);

        if (searchResponse.status().getStatus() == 200) {
            // 解析對象
            return setSearchResponse(searchResponse, highlightField);
        }

        return null;

    }


    /**
     * 高亮結果集 特殊處理
     *
     * @param searchResponse
     * @param highlightField
     */
    private static List<Map<String, Object>> setSearchResponse(SearchResponse searchResponse, String highlightField) {
        List<Map<String, Object>> sourceList = new ArrayList<Map<String, Object>>();
        StringBuffer stringBuffer = new StringBuffer();

        for (SearchHit searchHit : searchResponse.getHits().getHits()) {
            searchHit.getSourceAsMap().put("id", searchHit.getId());

            if (StringUtils.isNotEmpty(highlightField)) {

                System.out.println("遍歷 高亮結果集，覆蓋 正常結果集" + searchHit.getSourceAsMap());
                Text[] text = searchHit.getHighlightFields().get(highlightField).getFragments();

                if (text != null) {
                    for (Text str : text) {
                        stringBuffer.append(str.string());
                    }
                    //遍歷 高亮結果集，覆蓋 正常結果集
                    searchHit.getSourceAsMap().put(highlightField, stringBuffer.toString());
                }
            }
            sourceList.add(searchHit.getSourceAsMap());
        }

        return sourceList;
    }
}

 

分頁類

package com.yxbl.dome.common.assembly.elasticserach.util;

import java.util.List;
import java.util.Map;

public class EsPage {
    /**
     * 當前頁
     */
    private int currentPage;
    /**
     * 每頁顯示多少條
     */
    private int pageSize;

    /**
     * 總記錄數
     */
    private int recordCount;
    /**
     * 本頁的數據列表
     */
    private List<Map<String, Object>> recordList;

    /**
     * 總頁數
     */
    private int pageCount;
    /**
     * 頁碼列表的開始索引（包含）
     */
    private int beginPageIndex;
    /**
     * 頁碼列表的結束索引（包含）
     */
    private int endPageIndex;

    /**
     * 只接受前4個必要的屬性，會自動的計算出其他3個屬性的值
     *
     * @param currentPage
     * @param pageSize
     * @param recordCount
     * @param recordList
     */
    public EsPage(int currentPage, int pageSize, int recordCount, List<Map<String, Object>> recordList) {
        this.currentPage = currentPage;
        this.pageSize = pageSize;
        this.recordCount = recordCount;
        this.recordList = recordList;

        // 計算總頁碼
        pageCount = (recordCount + pageSize - 1) / pageSize;

        // 計算 beginPageIndex 和 endPageIndex
        // >> 總頁數不多於10頁，則全部顯示
        if (pageCount <= 10) {
            beginPageIndex = 1;
            endPageIndex = pageCount;
        }
        // >> 總頁數多於10頁，則顯示當前頁附近的共10個頁碼
        else {
            // 當前頁附近的共10個頁碼（前4個 + 當前頁 + 後5個）
            beginPageIndex = currentPage - 4;
            endPageIndex = currentPage + 5;
            // 當前面的頁碼不足4個時，則顯示前10個頁碼
            if (beginPageIndex < 1) {
                beginPageIndex = 1;
                endPageIndex = 10;
            }
            // 當後面的頁碼不足5個時，則顯示後10個頁碼
            if (endPageIndex > pageCount) {
                endPageIndex = pageCount;
                beginPageIndex = pageCount - 10 + 1;
            }
        }
    }


    public int getCurrentPage() {
        return currentPage;
    }

    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }

    public int getRecordCount() {
        return recordCount;
    }

    public void setRecordCount(int recordCount) {
        this.recordCount = recordCount;
    }

    public List<Map<String, Object>> getRecordList() {
        return recordList;
    }

    public void setRecordList(List<Map<String, Object>> recordList) {
        this.recordList = recordList;
    }

    public int getPageCount() {
        return pageCount;
    }

    public void setPageCount(int pageCount) {
        this.pageCount = pageCount;
    }

    public int getBeginPageIndex() {
        return beginPageIndex;
    }

    public void setBeginPageIndex(int beginPageIndex) {
        this.beginPageIndex = beginPageIndex;
    }

    public int getEndPageIndex() {
        return endPageIndex;
    }

    public void setEndPageIndex(int endPageIndex) {
        this.endPageIndex = endPageIndex;
    }

}

測試

package com.ws.elasticserach.tranclient_demo.controller;

import com.alibaba.fastjson.JSONObject;
import com.yxbl.dome.common.assembly.elasticserach.util.ElasticsearchUtil;
import com.yxbl.dome.common.assembly.elasticserach.util.EsPage;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.client.utils.DateUtils;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.*;

@RequestMapping("/es")
@RestController
public class ESTestController {
    /**
     * 測試索引
     */
    private String indexName="test_index";

    /**
     * 類型
     */
    private String esType="external";

    /**
     * http://127.0.0.1:8080/es/createIndex
     * 創建索引
     * @param request
     * @param response
     * @return
     */
    @RequestMapping("/createIndex")
    public String createIndex(HttpServletRequest request, HttpServletResponse response) {
        if(!ElasticsearchUtil.isIndexExist(indexName)) {
            ElasticsearchUtil.createIndex(indexName);
        }
        else{
            return "索引已經存在";
        }
        return "索引創建成功";
    }

    /**
     * 插入記錄
     * @return
     */
    @RequestMapping("/insertJson")
    public String insertJson() {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("id", DateUtils.formatDate(new Date()));
        jsonObject.put("age", 25);
        jsonObject.put("name", "j-" + new Random(100).nextInt());
        jsonObject.put("date", new Date());
        String id = ElasticsearchUtil.addData(jsonObject, indexName, esType, jsonObject.getString("id"));
        return id;
    }

    /**
     插入記錄
     * @return
     */
//    @RequestMapping("/insertModel")
//    @ResponseBody
//    public String insertModel() {
//        EsModel esModel = new EsModel();
//        esModel.setId(DateUtil.formatDate(new Date()));
//        esModel.setName("m-" + new Random(100).nextInt());
//        esModel.setAge(30);
//        esModel.setDate(new Date());
//        JSONObject jsonObject = (JSONObject) JSONObject.toJSON(esModel);
//        String id = ElasticsearchUtil.addData(jsonObject, indexName, esType, jsonObject.getString("id"));
//        return id;
//    }

    /**
     * 刪除記錄
     * @return
     */
    @RequestMapping("/delete")
    public String delete(String id) {
        if(StringUtils.isNotBlank(id)) {
            ElasticsearchUtil.deleteDataById(indexName, esType, id);
            return "刪除id=" + id;
        }
        else{
            return "id爲空";
        }
    }

    /**
     * 更新數據
     * @return
     */
    @RequestMapping("/update")

    public String update(String id) {
        if(StringUtils.isNotBlank(id)) {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("id", id);
            jsonObject.put("age", 31);
            jsonObject.put("name", "修改");
            jsonObject.put("date", new Date());
            ElasticsearchUtil.updateDataById(jsonObject, indexName, esType, id);
            return "id=" + id;
        }
        else{
            return "id爲空";
        }
    }

    /**
     * 獲取數據
     * http://127.0.0.1:8080/es/getData?id=2018-04-25%2016:33:44
     * @param id
     * @return
     */
    @RequestMapping("/getData")

    public String getData(String id){
        if(StringUtils.isNotBlank(id)) {
            Map<String, Object> map= ElasticsearchUtil.searchDataById(indexName,esType,id,null);
            return JSONObject.toJSONString(map);
        }
        else{
            return "id爲空";
        }
    }

    /**
     * 查詢數據
     * 模糊查詢
     * @return
     */
    @RequestMapping("/queryMatchData")

    public String queryMatchData() {
        BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        boolean matchPhrase = false;
        if (matchPhrase == Boolean.TRUE) {
            boolQuery.must(QueryBuilders.matchPhraseQuery("name", "修"));
        } else {
            boolQuery.must(QueryBuilders.matchQuery("name", "修"));
        }
        List<Map<String, Object>> list = ElasticsearchUtil.searchListData(indexName, esType, boolQuery, 10, null, null, null);
        return JSONObject.toJSONString(list);
    }

    /**
     * 通配符查詢數據
     * 通配符查詢 ?用來匹配1個任意字符，*用來匹配零個或者多個字符
     * @return
     */
    @RequestMapping("/queryWildcardData")

    public String queryWildcardData() {
        QueryBuilder queryBuilder = QueryBuilders.wildcardQuery("name.keyword", "j-*466");
        List<Map<String, Object>> list = ElasticsearchUtil.searchListData(indexName, esType, queryBuilder, 10, null, null, null);
        return JSONObject.toJSONString(list);
    }

    /**
     * 正則查詢
     * @return
     */
    @RequestMapping("/queryRegexpData")

    public String queryRegexpData() {
        QueryBuilder queryBuilder = QueryBuilders.regexpQuery("name.keyword", "j--[0-9]{1,11}");
        List<Map<String, Object>> list = ElasticsearchUtil.searchListData(indexName, esType, queryBuilder, 10, null, null, null);
        return JSONObject.toJSONString(list);
    }

    /**
     * 查詢數字範圍數據
     * @return
     */
    @RequestMapping("/queryIntRangeData")

    public String queryIntRangeData() {
        BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        boolQuery.must(QueryBuilders.rangeQuery("age").from(21)
                .to(25));
        List<Map<String, Object>> list = ElasticsearchUtil.searchListData(indexName, esType, boolQuery, 10, null, null, null);
        return JSONObject.toJSONString(list);
    }

    /**
     * 查詢日期範圍數據
     * @return
     */
    @RequestMapping("/queryDateRangeData")

    public String queryDateRangeData() {
        BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        boolQuery.must(QueryBuilders.rangeQuery("date").from("2018-04-25T08:33:44.840Z")
                .to("2019-04-25T10:03:08.081Z"));
        List<Map<String, Object>> list = ElasticsearchUtil.searchListData(indexName, esType, boolQuery, 10, null, null, null);
        return JSONObject.toJSONString(list);
    }

    /**
     * 查詢分頁
     * @param startPage   第幾條記錄開始
     *                    從0開始
     *                    第1頁 ：http://127.0.0.1:8080/es/queryPage?startPage=0&pageSize=2
     *                    第2頁 ：http://127.0.0.1:8080/es/queryPage?startPage=2&pageSize=2
     * @param pageSize    每頁大小
     * @return
     */
    @RequestMapping("/queryPage")

    public String queryPage(String startPage,String pageSize){
        if(StringUtils.isNotBlank(startPage)&& StringUtils.isNotBlank(pageSize)) {
            BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
            boolQuery.must(QueryBuilders.rangeQuery("date").from("2018-04-25T08:33:44.840Z")
                    .to("2018-04-25T10:03:08.081Z"));
            EsPage list = ElasticsearchUtil.searchDataPage(indexName, esType, Integer.parseInt(startPage), Integer.parseInt(pageSize), boolQuery, null, null, null);
            return JSONObject.toJSONString(list);
        }
        else{
            return  "startPage或者pageSize缺失";
        }
    }
}

參考文章
https://blog.csdn.net/qq_19734597/article/details/92816880

啓動報錯遠程連接斷開 修改上面的elasticsearch.yml配置

參考連接

https://blog.csdn.net/qq_20492999/article/details/82969800

內存不足修改jvm.opts

 

es啓動錯誤參考連接

https://blog.csdn.net/feng12345zi/article/details/80367907