JDK版本报错 在jdbc实现中

[leviYX]

1、我的配置文件pom如下：

UTF-8 UTF-8 2.3.7.RELEASE 8.8.0 1.8 1.8

<dependencies>

    <dependency>
        <groupId>co.elastic.clients</groupId>
        <artifactId>elasticsearch-java</artifactId>
        <version>8.8.0</version>
    </dependency>

    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-client</artifactId>
        <version>8.8.0</version>
    </dependency>
    <dependency>
        <groupId>org.elasticsearch</groupId>
        <artifactId>elasticsearch</artifactId>
        <version>8.8.0</version>
        <scope>provided</scope>
        <exclusions>
            <exclusion>
                <groupId>org.elasticsearch</groupId>
                <artifactId>elasticsearch-preallocate</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.14.1</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>com.unboundid</groupId>
        <artifactId>unboundid-ldapsdk</artifactId>
        <version>6.0.7</version>
        <scope>provided</scope>
    </dependency>

    <!-- https://mvnrepository.com/artifact/jakarta.json/jakarta.json-api -->

    <dependency>
        <groupId>com.wenge</groupId>
        <artifactId>elasticsearch-sql</artifactId>
        <version>${es.version}</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/lib/elasticsearch-sql-8.8.0.0.jar</systemPath>
    </dependency>
    <dependency>
        <groupId>com.wenge</groupId>
        <artifactId>guava</artifactId>
        <version>32.0.0</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/lib/guava-32.0.0-jre.jar</systemPath>
    </dependency>
    <dependency>
        <groupId>com.wenge</groupId>
        <artifactId>druid</artifactId>
        <version>1.2.15</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/lib/druid-1.2.15.jar</systemPath>
    </dependency>
</dependencies>

2、java代码如下，基本是按照源码包的单元测试复制的

@Test public void testJDBCWithParameter() throws Exception { DruidDataSource dds = (DruidDataSource) ElasticSearchDruidDataSourceFactory.createDataSource(createElasticsearchClient()); Connection connection = dds.getConnection(); PreparedStatement ps = connection.prepareStatement("SELECT * from " + INDEX_NAME ); ResultSet resultSet = ps.executeQuery();

    ResultSetMetaData metaData = resultSet.getMetaData();


    List<String> result = new ArrayList<String>();
    String scrollId = null;
    while (resultSet.next()) {
        scrollId = resultSet.getString("_scroll_id");
        result.add(resultSet.getString("lastname") + "," + resultSet.getInt("age") + "," + resultSet.getString("gender") + "," + resultSet.getString("gender.keyword"));
    }

    ps.close();
    connection.close();
    dds.close();
}
public static Client createElasticsearchClient() throws UnknownHostException {
    return new ElasticsearchRestClient(new ElasticsearchClient(getElasticsearchTransport(getRestClient())));
}
private static ElasticsearchTransport getElasticsearchTransport(RestClient restClient) {
    TransportOptions.Builder transportOptionsBuilder = new RestClientOptions(RequestOptions.DEFAULT).toBuilder();

    ContentType jsonContentType = Version.VERSION == null ? ContentType.APPLICATION_JSON
            : ContentType.create("application/vnd.elasticsearch+json",
            new BasicNameValuePair("compatible-with", String.valueOf(Version.VERSION.major())));

    Consumer<String> setHeaderIfNotPresent = header -> {
        if (transportOptionsBuilder.build().headers().stream().noneMatch((h) -> h.getKey().equalsIgnoreCase(header))) {
            transportOptionsBuilder.addHeader(header, jsonContentType.toString());
        }
    };

    setHeaderIfNotPresent.accept("Content-Type");
    setHeaderIfNotPresent.accept("Accept");

    TransportOptions transportOptionsWithHeader = transportOptionsBuilder.build();
    return new RestClientTransport(restClient, new JacksonJsonpMapper(), transportOptionsWithHeader);
}

private static RestClient getRestClient() throws UnknownHostException {
    InetSocketAddress address = new InetSocketAddress("172.16.10.26",9200);
    String hostPort = String.format("http://%s:%s", address.getHostString(), address.getPort());

    RestClientBuilder builder = RestClient.builder(HttpHost.create(hostPort));
    builder.setHttpClientConfigCallback(clientBuilder -> {
        RequestConfig.Builder requestConfigBuilder = RequestConfig.custom();
        requestConfigBuilder.setConnectTimeout(10 * 1000);

        int socketTimeout = 90 * 1000;
        requestConfigBuilder.setSocketTimeout(socketTimeout);
        requestConfigBuilder.setConnectionRequestTimeout(socketTimeout);
        clientBuilder.setDefaultRequestConfig(requestConfigBuilder.build());

        return clientBuilder;
    });
    return builder.build();
}

然后执行单元测试报错如下，createElasticsearchClient()方法的返回类型org.elasticsearch.client.internal.Client;的jdk编译版本不一样，编译是jdk17，我是运行在jdk8中的，这个是为啥呢 java: 无法访问org.elasticsearch.client.internal.Client 错误的类文件: /D:/Program Files (x86)/apache-maven-3.6.1-bin/apache-maven-3.6.1/repo/org/elasticsearch/elasticsearch/8.8.0/elasticsearch-8.8.0.jar!/org/elasticsearch/client/internal/Client.class 类文件具有错误的版本 61.0, 应为 52.0 请删除该文件或确保该文件位于正确的类路径子目录中。

[leviYX]

需要JDK环境升级到JDK17吗。但是我看test测试类，里面也是jdk8

[shi-yuan]

需要升级的，因为elasticsearch的jar包是用高版本编译打包的