Elasticsearch java 客户端初始化失败 [英] Elasticsearch java client initialization fails

问题描述

我在尝试运行连接到 elasticsearch 的应用程序时收到此错误消息.

I'm getting this error message while trying to run an application which connects to elasticsearch.

An attempt was made to call the method org.elasticsearch.client.RestHighLevelClient.<init>(Lorg/elasticsearch/client/RestClientBuilder;)V but it does not exist. Its class, org.elasticsearch.client.RestHighLevelClient, is available from the following locations:

jar:file:/path/application/target/application-0.0.1-SNAPSHOT.jar!/BOOT-INF/lib/elasticsearch-rest-high-level-client-5.6.3.jar!/org/elasticsearch/client/RestHighLevelClient.class

It was loaded from the following location:

jar:file:/path/application/target/application-0.0.1-SNAPSHOT.jar!/BOOT-INF/lib/elasticsearch-rest-high-level-client-5.6.3.jar!/

Action:

Correct the classpath of your application so that it contains a single, compatible version of org.elasticsearch.client.RestHighLevelClient

应用程序构建没有错误，我的 maven 存储库中只存在一个版本的 elasticsearch SDK.

The application builds without errors and only one version of elasticsearch SDK exists in my maven repository.

这是我的 pom 的相关部分:

This is the relevant portion of my pom:

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.RELEASE</version>
        <relativePath />
    </parent>

    <dependency>
        <groupId>org.elasticsearch</groupId>
        <artifactId>elasticsearch</artifactId>
        <version>5.6.3</version>
    </dependency>

    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-client</artifactId>
        <version>5.6.3</version>
    </dependency>
    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-high-level-client</artifactId>
        <version>5.6.3</version>
        <exclusions>
            <exclusion>
                <groupId>org.elasticsearch.client</groupId>
                <artifactId>elasticsearch-rest-client</artifactId>
            </exclusion>
            <exclusion>
                <groupId>org.elasticsearch</groupId>
                <artifactId>elasticsearch</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

这是我在运行应用程序时遇到的异常:

This is the exception that I get while running the application:

org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.RestHighLevelClient]: Factory method 'restHighLevelClient' threw exception; nested exception is java.lang.NoSuchMethodError: org.elasticsearch.client.RestHighLevelClient.<init>(Lorg/elasticsearch/client/RestClientBuilder;)V

这是我初始化 RestHighLevelClient 的方式:

This is how I'm initializing the RestHighLevelClient:

RestClientBuilder builder = RestClient
                .builder(new HttpHost(hostname, port, scheme));
builder.setMaxRetryTimeoutMillis(timeout);
RestHighLevelClient restHighLevelClient = new RestHighLevelClient(builder.build());

推荐答案

Spring boot 会尝试自动配置 elasticsearch，它会在内部使用 elastic 6RestHighLevelClient(org.elasticsearch.client.RestClientBuilder builder) 来创建弹性客户端.如果您想连接到旧版本的 elasticsearch，请排除 elasticsearch 自动配置.

Spring boot will try to autoconfigure elasticsearch which will internally use elastic 6 RestHighLevelClient(org.elasticsearch.client.RestClientBuilder builder) to create the elastic client. If you want to connect to an older version of elasticsearch please exclude elasticsearch autoconfiguration.

@EnableAutoConfiguration(exclude={ElasticsearchAutoConfiguration.class, RestClientAutoConfiguration.class})

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