java-用于RabbitMQ的Spring SimpleMessageListenerContainer在无效消息上中止
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我正在使用springs SimpleMessageListenerContainer来使用RabbitMQ队列中的消息.一切正常,但是当无效消息发送到队列(例如无效的json)时,侦听器将中止,关闭工作进程并且不接受任何其他消息.
是否可以将其配置为丢弃中断的消息并继续监听其他消息？
我正在使用sprint-rabbit-1.6.1.RELEASE.jar
我的配置如下所示：
@Bean
public SimpleMessageListenerContainer container(ConnectionFactory connectionFactory,
MessageListenerAdapter listenerAdapter,
MessageConverter messageConverter) {
SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
container.setConnectionFactory(connectionFactory);
container.setQueueNames("my.queue");
container.setMessageListener(listenerAdapter);
container.setMessageConverter(messageConverter);
return container;
}
@Bean
public MessageConverter messageConverter() {
return new Jackson2JsonMessageConverter();
}
@Bean
MessageListenerAdapter listenerAdapter(Worker worker) {
MessageListenerAdapter messageListenerAdapter = new MessageListenerAdapter(worker, "processMessage");
messageListenerAdapter.setMessageConverter(new Jackson2JsonMessageConverter());
return messageListenerAdapter;
}
我的侦听器方法的声明：
public void processMessage(Map<String, String> message) {
当我发送类似““ routeId”：“ 7”}“(破碎的json)的消息时,我得到了异常：
2016-09-02 08:10:35.821 WARN 35841 --- [ container-29] s.a.r.l.ConditionalRejectingErrorHandler : Execution of Rabbit message listener failed.
org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException: Failed to invoke target method 'processMessage' with argument type = [class java.lang.String], value = [{routeId}]
at org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.invokeListenerMethod(MessageListenerAdapter.java:408) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.onMessage(MessageListenerAdapter.java:298) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:777) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:700) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$001(SimpleMessageListenerContainer.java:95) [spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$1.invokeListener(SimpleMessageListenerContainer.java:187) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.invokeListener(SimpleMessageListenerContainer.java:1187) [spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:681) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:1165) [spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:1149) [spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1100(SimpleMessageListenerContainer.java:95) [spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1312) [spring-rabbit-1.6.1.RELEASE.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
Caused by: java.lang.NoSuchMethodException: nz.co.qrious.transport.batchstarter.service.Worker.processMessage(java.lang.String)
at java.lang.Class.getMethod(Class.java:1786) ~[na:1.8.0_101]
at org.springframework.util.MethodInvoker.prepare(MethodInvoker.java:174) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.invokeListenerMethod(MessageListenerAdapter.java:386) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
... 12 common frames omitted
2016-09-02 08:10:35.828 ERROR 35841 --- [ container-29] o.s.a.r.l.SimpleMessageListenerContainer : Consumer received fatal exception during processing
org.springframework.amqp.rabbit.listener.exception.FatalListenerExecutionException: Invalid listener
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1351) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
Caused by: org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException: Failed to invoke target method 'processMessage' with argument type = [class java.lang.String], value = [{routeId}]
at org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.invokeListenerMethod(MessageListenerAdapter.java:408) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.onMessage(MessageListenerAdapter.java:298) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:777) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:700) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$001(SimpleMessageListenerContainer.java:95) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$1.invokeListener(SimpleMessageListenerContainer.java:187) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.invokeListener(SimpleMessageListenerContainer.java:1187) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:681) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:1165) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:1149) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1100(SimpleMessageListenerContainer.java:95) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1312) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
... 1 common frames omitted
Caused by: java.lang.NoSuchMethodException: nz.co.qrious.transport.batchstarter.service.Worker.processMessage(java.lang.String)
at java.lang.Class.getMethod(Class.java:1786) ~[na:1.8.0_101]
at org.springframework.util.MethodInvoker.prepare(MethodInvoker.java:174) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.invokeListenerMethod(MessageListenerAdapter.java:386) ~[spring-rabbit-1.6.1.RELEASE.jar:na]
... 12 common frames omitted
2016-09-02 08:10:35.833 ERROR 35841 --- [ container-29] o.s.a.r.l.SimpleMessageListenerContainer : Stopping container from aborted consumer
2016-09-02 08:10:35.833 INFO 35841 --- [ container-29] o.s.a.r.l.SimpleMessageListenerContainer : Waiting for workers to finish.
2016-09-02 08:10:35.833 INFO 35841 --- [ container-29] o.s.a.r.l.SimpleMessageListenerContainer : Successfully waited for workers to finish.
在此引发SimpleMessageListenerContainer中的致命异常：
catch (ListenerExecutionFailedException ex) {
// Continue to process, otherwise re-throw
if (ex.getCause() instanceof NoSuchMethodException) {
throw new FatalListenerExecutionException("Invalid listener", ex);
}
}
因此,如果使用不存在的方法配置容器,似乎应该将其关闭.但是,如果出现一条损坏的消息,它将尝试使用错误的参数类型来调用该方法,这也会导致NoSuchMethodException.这意味着任何生产者都可以通过残破的消息杀死我的消费者.
感谢您的任何建议！
解决方法:
有趣;我能够重现您的问题；事实证明,如果消息不包含__TypeID__头(转换提示),它仅将“坏” json作为字符串返回.
我可以通过将自定义类映射器注入转换器来解决此问题.
您还可以让发送系统设置类型标头.
然后,由于我们收到MessageConversionException,因此消息被拒绝.
package com.example;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.springframework.amqp.core.MessageProperties;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter;
import org.springframework.amqp.support.converter.ClassMapper;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.amqp.support.converter.SimpleMessageConverter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class So39264965Application {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext context = SpringApplication.run(So39264965Application.class, args);
RabbitTemplate template = context.getBean(RabbitTemplate.class);
template.convertAndSend("my.queue", new Foo());
context.getBean(Worker.class).latch.await(60, TimeUnit.SECONDS);
// bad json
template.setMessageConverter(new SimpleMessageConverter());
template.convertAndSend("", "my.queue", "\"routeId\":\"7\"}", m -> {
m.getMessageProperties().setContentType("application/json");
return m;
});
Thread.sleep(60000);
context.close();
}
@Bean
public SimpleMessageListenerContainer container(ConnectionFactory connectionFactory,
MessageListenerAdapter listenerAdapter, MessageConverter messageConverter) {
SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
container.setConnectionFactory(connectionFactory);
container.setQueueNames("my.queue");
container.setMessageListener(listenerAdapter);
container.setMessageConverter(messageConverter);
return container;
}
@Bean
public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
rabbitTemplate.setMessageConverter(messageConverter());
return rabbitTemplate;
}
@Bean
public Queue queue() {
return new Queue("my.queue");
}
@Bean
public MessageConverter messageConverter() {
Jackson2JsonMessageConverter jackson2JsonMessageConverter = new Jackson2JsonMessageConverter();
jackson2JsonMessageConverter.setClassMapper(new ClassMapper() {
@Override
public Class<?> toClass(MessageProperties properties) {
return Foo.class;
}
@Override
public void fromClass(Class<?> clazz, MessageProperties properties) {
}
});
return jackson2JsonMessageConverter;
}
@Bean
MessageListenerAdapter listenerAdapter(Worker worker) {
MessageListenerAdapter messageListenerAdapter = new MessageListenerAdapter(worker, "processMessage");
messageListenerAdapter.setMessageConverter(messageConverter());
return messageListenerAdapter;
}
@Bean
public Worker worker() {
return new Worker();
}
public static class Worker {
private final CountDownLatch latch = new CountDownLatch(1);
public void processMessage(Foo foo) {
System.out.println(foo);
this.latch.countDown();
}
}
public static class Foo {
private String bar = "bar";
public String getBar() {
return this.bar;
}
public void setBar(String bar) {
this.bar = bar;
}
@Override
public String toString() {
return "Foo [bar=" + this.bar + "]";
}
}
}
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