• 配置pom.xml
    <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-high-level-client</artifactId>
            <version>7.1.1</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.elasticsearch/elasticsearch -->
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>7.1.1</version>
        </dependency>
  • 配置been
package com.elastic.search.client;

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.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import sun.java2d.DisposerRecord;

import java.io.IOException;

/**
 * @author huangdeyao
 * @date 2019/6/10 11:13
 */
@Component
public class ElasticsearchClient implements DisposerRecord {

    private RestHighLevelClient client;

    private final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();

    @Bean
    public RestHighLevelClient getRestHighLevelClient() {
        credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("elastic", "123456"));
        client = new RestHighLevelClient(
                RestClient.builder(
                        new HttpHost("192.168.177.128", 9200, "http"))
                        .setHttpClientConfigCallback(httpAsyncClientBuilder -> {
                            //这里可以设置一些参数,比如cookie存储、代理等等
                            httpAsyncClientBuilder.disableAuthCaching();
                            return httpAsyncClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
                        })
        );

        return client;
    }

    @Override
    public void dispose() {
        if (client != null) {
            try {
                client.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
  • 添加index
        Map<String, Object> jsonMap = new HashMap<>();
        jsonMap.put("user", "kimchy");
        jsonMap.put("postDate", new Date());
        jsonMap.put("message", "trying out Elasticsearch");
        IndexRequest indexRequest = new IndexRequest("posts").id("1").source(jsonMap);
        try {
            IndexResponse response = restHighLevelClient.index(indexRequest, RequestOptions.DEFAULT);
            logger.info(response.toString());
        } catch(ElasticsearchException e) {
            if (e.status() == RestStatus.CONFLICT) {

            }
        }
  • 查询
  GetRequest getRequest = new GetRequest("index", "1");
        GetResponse response = restHighLevelClient.get(getRequest, RequestOptions.DEFAULT);
        logger.info(response.toString());

官网文档

中间遇到的错误

[org.elasticsearch.action.index.IndexRequest.ifSeqNo
](https://www.yrclubs.com/details?id=89)

Last modification:February 13th, 2020 at 03:49 pm
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