spring - Elasticsearch TransportClient NetworkPlugin NoClassDefFoundError

Question

我期待将 Elasticsearch 集成到 Spring Boot Web 应用程序中。这是我创建传输客户端的配置:

@Configuration
public class ElasticsearchConfig {

private TransportClient client;

@Bean
public TransportClient client() throws UnknownHostException{

    Settings settings = Settings.builder()
            .put("client.transport.nodes_sampler_interval", "5s")
            .put("client.transport.sniff", false)
            .put("transport.tcp.compress", true)
            .put("cluster.name", "clusterName")
            .put("xpack.security.transport.ssl.enabled", true)
            .build();

    client = new PreBuiltTransportClient(settings);

    client.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));

    return client;
}

当我启动项目时，出现以下错误，我不知道为什么:

java.lang.ClassNotFoundException: org.elasticsearch.plugins.NetworkPlugin

我是不是忘记添加依赖了？

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
</dependency>
<dependency>
    <groupId>org.elasticsearch.client</groupId>
    <artifactId>transport</artifactId>
    <version>5.1.1</version>
</dependency>

希望你能帮助我

Answer 1

我刚刚遇到了同样的问题。似乎 Elasticsearch 文档不完整。除了transport client依赖，还需要添加elasticsearch依赖:

<dependency>
    <groupId>org.elasticsearch</groupId>
    <artifactId>elasticsearch</artifactId>
    <version>5.1.1</version>
</dependency>

您还需要 log4j 依赖项，但这在 Elasticsearch docs 中有明确说明.