Question

我有REST API，我想在一些api调用中使用Kafka流。我能够将代码部署到JBoss服务器而没有任何错误，但是执行api调用时出现以下错误：

org.jboss.resteasy.spi.UnhandledException： java.lang.NoClassDefFoundError： org / apache / kafka / clients / consumer / KafkaConsumer

我可以在IntelliJ的外部库中看到该类。这是我的资源类：

package com.company.rest;

import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import java.util.Properties;
import java.util.Arrays;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import java.util.function.Supplier;

@Path("topic")
public class TopicResource {
    private final static String TOPIC = "MyTopic";
    private final static String BOOTSTRAP_SERVERS = "localhost:9092";

    @GET
    @Path("/{name}")
    @Produces(MediaType.TEXT_PLAIN)
    public void getTopic(@PathParam("name") String name) {

        Properties props = new Properties();
        props.put("bootstrap.servers", "localhost:9092");
        props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
        props.put("value.deserializer", "SupplierDeserializer");

        KafkaConsumer<String, Supplier> consumer = new KafkaConsumer<String, Supplier>(props);

        consumer.subscribe(Arrays.asList("MyTopic"));

        while (true){
            ConsumerRecords<String, Supplier> records = consumer.poll(100);
            for (ConsumerRecord<String, Supplier> record : records){
                System.out.println("Print some text");
            }
        }
    }
}

这是我的pom.xml文件：

<dependencies>
    <!-- https://mvnrepository.com/artifact/javax.ejb/javax.ejb-api -->
    <dependency>
        <groupId>javax.ejb</groupId>
        <artifactId>javax.ejb-api</artifactId>
        <version>3.2</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>4.0.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>6.0</version>
        <scope>provided</scope>
    </dependency>

    <!-- https://mvnrepository.com/artifact/javax.ws.rs/javax.ws.rs-api -->
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.8.5</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka-clients -->
    <dependency>
        <groupId>org.apache.kafka</groupId>
        <artifactId>kafka-clients</artifactId>
        <version>2.0.0</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka-streams -->
    <dependency>
        <groupId>org.apache.kafka</groupId>
        <artifactId>kafka-streams</artifactId>
        <version>2.0.0</version>
    </dependency>
</dependencies>

我不确定我做错了什么还是与某些IntelliJ配置有关。任何帮助将不胜感激。预先感谢！

IntelliJ：找不到Java类，但是代码成功部署

0 个答案: