小编Joe*_*ski的帖子

尝试使用SQS消息时，看到以下异常：

org.springframework.messaging.converter.MessageConversionException: 

Cannot convert from [java.lang.String] to [com.example.demo.Foo] for GenericMessage [payload={}, headers={LogicalResourceId=my-queue, ApproximateReceiveCount=1, SentTimestamp=1529021258825, ReceiptHandle=xxxx, Visibility=org.springframework.cloud.aws.messaging.listener.QueueMessageVisibility@47ce6922, SenderId=xxxx, lookupDestination=my-queue, ApproximateFirstReceiveTimestamp=1529021264456, MessageId=xxxx}]
    at org.springframework.messaging.handler.annotation.support.PayloadArgumentResolver.resolveArgument(PayloadArgumentResolver.java:144)
    at org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:116)
    at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:137)
    at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:109)
    at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMatch(AbstractMethodMessageHandler.java:515)
    at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMessageInternal(AbstractMethodMessageHandler.java:473)
    at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMessage(AbstractMethodMessageHandler.java:409)
    at org.springframework.cloud.aws.messaging.listener.SimpleMessageListenerContainer.executeMessage(SimpleMessageListenerContainer.java:205)
    at org.springframework.cloud.aws.messaging.listener.SimpleMessageListenerContainer$MessageExecutor.run(SimpleMessageListenerContainer.java:342)
    at org.springframework.cloud.aws.messaging.listener.SimpleMessageListenerContainer$SignalExecutingRunnable.run(SimpleMessageListenerContainer.java:397)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

Spring Boot的代码如下：

@Configuration
@EnableSqs
public class AmazonSqsConfiguration {

    @Bean
    public AmazonSQS amazonSQSAsync() {
        return AmazonSQSAsyncClientBuilder.standard()
            .withRegion(Regions.US_WEST_2)
            .build();
    }
}

@Service
public class MyService {

    // Throws MessageConversionException
    @SqsListener("my-queue")
    public void listen(Foo payload) {

    } …

我使用的是RailsAdmin v0.6.8和PaperTrail进行版本控制。

我的每个has_paper_trail模型的列表，显示，创建和编辑视图都包含版本属性。实际上，创建和编辑视图允许添加/删除版本，这对我来说真的没有意义。除了对每个模型上的每个视图使用exclude_fields：versions之外，是否有全局方法来做到这一点？

谢谢！