最新elasticsearch7.16 证书问题解决办法

重点：重写HostnameVerifier接口。
此类是用于主机名验证的基接口。在握手期间，如果 URL 的主机名和服务器的标识主机名不匹配，则验证机制可以回调此接口的实现程序来确定是否应该允许此连接。策略可以是基于证书的或依赖于其他验证方案。当验证 URL 主机名使用的默认规则失败时使用这些回调
可参考：https://blog.csdn.net/u010142437/article/details/42296557

**具体代码如下**：

## 配置的代码

import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
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.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;

import javax.net.ssl.*;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;

@Configuration
@Slf4j
public class ElasticSearchConfiguration extends AbstractElasticsearchConfiguration {

    @SneakyThrows
    @Override
    @Bean
    public RestHighLevelClient elasticsearchClient() {
        final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        credentialsProvider.setCredentials(AuthScope.ANY,
                new UsernamePasswordCredentials("elastic", "密码"));
        final SSLContext sslContext = SSLContext.getInstance("TLS");
        sslContext.init(null, new TrustManager[]{new MyTrustManager()}, new SecureRandom());
        final MyHostnameVerifier hostnameVerifier = new MyHostnameVerifier();
        try {
            var host = new HttpHost("ip地址", 端口号, "https");
            RestClientBuilder builder = RestClient.builder(host);
            builder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
                @Override
                public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
                    return httpClientBuilder
                            .setDefaultCredentialsProvider(credentialsProvider)
                            .setSSLContext(sslContext)
                            .setSSLHostnameVerifier(hostnameVerifier);
                }
            });

            return new RestHighLevelClient(builder);
        } catch (Exception e) {
            log.error("build elastic search rest client failed!", e);
            throw e;
        }
    }
	
    private static class MyHostnameVerifier implements HostnameVerifier {
        @Override
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    }

    private static class MyTrustManager implements X509TrustManager {
        @Override
        public void checkClientTrusted(X509Certificate[] chain, String authType) {
        }

        @Override
        public void checkServerTrusted(X509Certificate[] chain, String authType) {
        }

        @Override
        public X509Certificate[] getAcceptedIssuers() {
            return null;
        }
    }
}


## pom.xml中需要引入

        
            org.springframework.data
            spring-data-elasticsearch
        


## 测试类

import com.alibaba.fastjson.JSON;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
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.action.update.UpdateRequest;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.elasticsearch.client.indices.CreateIndexResponse;
import org.elasticsearch.client.indices.GetIndexRequest;
import org.elasticsearch.common.unit.Timevalue;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.TermQueryBuilder;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.fetch.subphase.FetchSourceContext;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.test.context.SpringBootTest;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;

@SpringBootTest
class SongEsApiApplicationTests {

    @Autowired
    @Qualifier("elasticsearchClient")
    private RestHighLevelClient client;

    
    @Test
    void contextLoads() throws IOException {
        // 创建索引请求
        CreateIndexRequest request = new CreateIndexRequest("song_index");
        // 客户端执行请求
        CreateIndexResponse createIndexResponse = client.indices().create(request, RequestOptions.DEFAULT);
        System.out.println(createIndexResponse);
    }

    
    @Test
    void testExistIndex() throws IOException {
        GetIndexRequest request = new GetIndexRequest("song_index");
        boolean exists = client.indices().exists(request, RequestOptions.DEFAULT);
        System.out.println(exists);
    }

    
    @Test
    void testDeleteIndex() throws IOException {
        DeleteIndexRequest request = new DeleteIndexRequest("song_index");
        AcknowledgedResponse delete = client.indices().delete(request, RequestOptions.DEFAULT);
        System.out.println(delete.isAcknowledged());
    }

    
    @Test
    void testAdddocument() throws IOException {
        User user = new User("测试1", 3);
        // 创建请求
        IndexRequest request = new IndexRequest("song_index");
        // 规则 PUT /song_index/_doc_1
        request.id("1");
        request.timeout(Timevalue.timevalueSeconds(1));
        request.timeout("1s");
        request.source(JSON.toJSonString(user), XContentType.JSON);
        // 客户端发送请求
        IndexResponse indexResponse = client.index(request, RequestOptions.DEFAULT);
        System.out.println(indexResponse.toString());
        System.out.println(indexResponse.status());
    }

    
    @Test
    void testIsExists() throws IOException {
        GetRequest getRequest = new GetRequest("song_index", "1");
        // 不获取返回的上下文
        getRequest.fetchSourceContext(new FetchSourceContext(false));

        boolean exists = client.exists(getRequest, RequestOptions.DEFAULT);
        System.out.println(exists);
    }

    
    @Test
    void testGetdocument() throws IOException {
        GetRequest getRequest = new GetRequest("song_index", "1");
        GetResponse getResponse = client.get(getRequest, RequestOptions.DEFAULT);
        System.out.println(getResponse.getSourceAsString());
        System.out.println(getResponse);
    }

    
    @Test
    void testUpdatedocument() throws IOException {
        UpdateRequest updateRequest = new UpdateRequest("song_index", "1");
        updateRequest.timeout("1s");
        User user = new User("测试1", 17);
        updateRequest.doc(JSON.toJSonString(user), XContentType.JSON);

        UpdateResponse updateResponse = client.update(updateRequest, RequestOptions.DEFAULT);
        System.out.println(updateResponse.status());
    }

    
    @Test
    void testDeletedocument() throws IOException {
        DeleteRequest deleteRequest = new DeleteRequest("song_index", "1");
        deleteRequest.timeout("1s");
        DeleteResponse deleteResponse = client.delete(deleteRequest, RequestOptions.DEFAULT);
        System.out.println(deleteResponse.status());
    }

    
    @Test
    void testBulkRequest() throws IOException {
        BulkRequest bulkRequest = new BulkRequest();
        bulkRequest.timeout("10s");

        List list = new ArrayList<>();
        list.add(new User("song1", 10));
        list.add(new User("song2", 11));
        list.add(new User("song3", 12));
        list.add(new User("song4", 13));
        list.add(new User("song4", 15));

        for (int i = 0; i < list.size(); i++) {
            bulkRequest.add(
                    new IndexRequest("song_index")
                            // 不传id，会有默认id
//                            .id("" + (i + 1))
                            .source(JSON.toJSonString(list.get(i)), XContentType.JSON)
            );
        }

        BulkResponse bulkResponse = client.bulk(bulkRequest, RequestOptions.DEFAULT);
        System.out.println(bulkResponse.hasFailures());
    }

    
    @Test
    void testQuesyRequest() throws IOException {
        SearchRequest searchRequest = new SearchRequest("song_index");
        // 构建搜索条件
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();

        // 查询条件可以用QueryBuilders工具类实现 1.QueryBuilders.termQuery 精确查询
        TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("name", "song1");
        // 2.QueryBuilders.matchAllQuery() 匹配所有
//        MatchAllQueryBuilder matchAllQueryBuilder = QueryBuilders.matchAllQuery();
        sourceBuilder.query(termQueryBuilder);
        sourceBuilder.timeout(new Timevalue(60, TimeUnit.SECONDS));

        searchRequest.source(sourceBuilder);

        SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        System.out.println(JSON.toJSonString(searchResponse.getHits()));
        System.out.println("==============");
        for (SearchHit hit : searchResponse.getHits().getHits()) {
            System.out.println(hit.getSourceAsMap());
        }
    }
}

## pojo类

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.stereotype.Component;

@Data
@AllArgsConstructor
@NoArgsConstructor
@Component
public class User {
    private String name;
    private int age;
}