zhoulinshun opened a new issue #55: Can the starter provide support for 
deserializing generic parameters?
URL: https://github.com/apache/rocketmq-spring/issues/55
 
 
   When I created the following code, there was an exception:
   
   `@Slf4j
   @Service
   @RocketMQMessageListener(consumerGroup = "abc" ,topic = 
TopicConstant.test_topic)
   public class TestConsumer implements RocketMQListener<TestEvent<String>> {
   
       @Override
       public void onMessage(TestEvent<String> s) {
           log.info("consumer message:{}", s);
       }
   }`
   
   `
   Caused by: java.lang.ClassCastException: 
sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to 
java.lang.Class
        at 
org.apache.rocketmq.spring.support.DefaultRocketMQListenerContainer.getMessageType(DefaultRocketMQListenerContainer.java:381)
        at 
org.apache.rocketmq.spring.support.DefaultRocketMQListenerContainer.afterPropertiesSet(DefaultRocketMQListenerContainer.java:277)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1804)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1741)
        ... 19 common frames omitted
   `
   

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