当我向RabbitMQ发送消息时,它会引发一个AmqpException for循环:
org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException
: Listener method 'no match' threw exception
at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:198) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.onMessage(MessagingMessageListenerAdapter.java:127) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1521) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1444) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1431) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1410) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:848) [spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:832) [spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$700(SimpleMessageListenerContainer.java:78) [spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1073) [spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
Caused by: org.springframework.amqp.AmqpException: No method found for class [B
at org.springframework.amqp.rabbit.listener.adapter.DelegatingInvocableHandler.getHandlerForPayload(DelegatingInvocableHandler.java:149) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.DelegatingInvocableHandler.invoke(DelegatingInvocableHandler.java:129) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.HandlerAdapter.invoke(HandlerAdapter.java:60) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:190) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE]
... 10 common frames omitted
我试图添加类级别的@RabbitListener,但是没有用
@Component
@RabbitListener(queues = "test", containerFactory="rabbitListenerContainerFactory")
public class ReceiverTwo {
@RabbitHandler
public void process(String message) {
System.out.println("Receiver: " + message);
}
}
生产方:
@Test
public void publishTest() throws IOException {
channel.exchangeDeclare("testExchange", "direct", true);
channel.queueBind("many", "testExchange", "many");
String message = "The test message";
channel.basicPublish("testExchange", "test",null, message.getBytes());
}
消费者方面:
@Component
@RabbitListener(queues = "test")
public class ReceiverTwo {
@RabbitHandler
public void process(String message) {
System.out.println("Receiver: " + message);
}
}
答案 0 :(得分:1)
您发送字节数组并尝试接收字符串。
将process(String message)
更改为process(byte[] message)
。
其他选项是设置
MessageProperties messageProperties = new MessageProperties();
messageProperties.setContentType(MessageProperties.CONTENT_TYPE_TEXT_PLAIN);
messageProperties.setContentEncoding(this.defaultCharset);
并将其传递给
channel.basicPublish("testExchange", "test", messageProperties, message.getBytes());
请参阅SimpleMessageConverter.createMessage
以供参考。
或者您可以使用RabbitTemplate
来帮您。