Spring-Kafka：反序列化kafka消息时出现问题-类不在“可信任的程序包”中吗？

如何解决Spring-Kafka：反序列化kafka消息时出现问题-类不在“可信任的程序包”中吗？

您可以通过以下方式将软件包列入白名单assessmentAttemptDetailsEntityConsumerFactory()：

    @Bean
    public ConsumerFactory<String, AssessmentAttemptDetailsEntity> assessmentAttemptDetailsEntityConsumerFactory() {
            JsonDeserializer<AssessmentAttemptDetailsEntity> 
            deserializer = new JsonDeserializer<>();
            deserializer.addTrustedPackages("com.lte.assessment.assessments");//your package
        return new DefaultKafkaConsumerFactory(config,deserializer);
    }

解决方法

我得到以下异常，因为我从一个项目生产而消费者从另一个项目消费。我怎样才能解决这个问题。显然，包不一样。因此，如何确保有正确的json序列化。

The class 'com.lte.assessment.assessments.AssessmentAttemptRequest' is not in the trusted packages: [java.util,java.lang,com.lte.assessmentanalytics.model

消费者配置

@EnableKafka
@Configuration
public class KafkaConfig {
    static Map<String,Object> config = new HashMap();

    static {
        config.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,"127.0.0.1:9092");
        config.put(ConsumerConfig.GROUP_ID_CONFIG,"group_id");
        config.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,StringDeserializer.class);
        config.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,JsonDeserializer.class);
    }


      @Bean
public ConsumerFactory<String,AssessmentAttemptRequest> assessmentAttemptDetailsEntityConsumerFactory() {
    JsonDeserializer<AssessmentAttemptRequest> deserializer = new JsonDeserializer<>();
    deserializer.addTrustedPackages("com.lte.assessment.assessments");
    return new DefaultKafkaConsumerFactory(config,new StringDeserializer(),deserializer);
}

}

生产者配置

@Configuration
public class KafkaConfiguration {

    @Bean
    public ProducerFactory producerConfig() {
        Map<String,Object> config = new HashMap();

        config.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG,"127.0.0.1:9092");
        config.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG,StringSerializer.class);
        config.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,JsonSerializer.class);

        return new DefaultKafkaProducerFactory(config);
    }

    @Bean
    public KafkaTemplate kafkaTemplate() {
        return new KafkaTemplate(producerConfig());
    }

 @Bean
    public ConcurrentKafkaListenerContainerFactory aaKafkaListenerFactory() {
        ConcurrentKafkaListenerContainerFactory<String,AssessmentAttemptDetailsEntity> factory = new ConcurrentKafkaListenerContainerFactory();
        factory.setConsumerFactory(assessmentAttemptDetailsEntityConsumerFactory());
        return factory;
    }
}