MyProjectJmsListenerContainerFactory类:
@Configuration
public class MyProjectJmsListenerContainerFactory {
@Bean
public JmsListenerContainerFactory<?> myFactory(
ConnectionFactory connectionFactory,
DefaultJmsListenerContainerFactoryConfigurer configurer,
MyProjectJmsGlobalErrorHandler errorHandler) {
ActiveMQConnectionFactory activeMQConnectionFactory =
(ActiveMQConnectionFactory)connectionFactory;
RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
redeliveryPolicy.setMaximumRedeliveries(1);
activeMQConnectionFactory.setRedeliveryPolicy(redeliveryPolicy);
DefaultJmsListenerContainerFactory factory =
new DefaultJmsListenerContainerFactory();
factory.setErrorHandler(errorHandler);
configurer.configure(factory, activeMQConnectionFactory);
return factory;
}
}
MyProjectJmsGlobalErrorHandler类:
@Component
public class MyProjectJmsGlobalErrorHandler implements ErrorHandler {
@Override
public void handleError(Throwable throwable) {
System.out.println("JMS EXCEPTION HANDLER CAUGHT THE EXCEPTION !!");
}
}
JMSTextMessageConverter类:
@Configuration
public class JMSTextMessageConverter {
@Bean
public MessageConverter jacksonJmsMessageConverter() {
MappingJackson2MessageConverter mappingJackson2MessageConverter =
new MappingJackson2MessageConverter();
mappingJackson2MessageConverter.setTargetType(MessageType.TEXT);
mappingJackson2MessageConverter.setTypeIdPropertyName("_type");
return mappingJackson2MessageConverter;
}
}
JMSMessagePublisher类:
@Component
public class JMSMessagePublisher {
private JmsTemplate jmsTemplate;
private MessageConverter messageConverter;
@Autowired
public JMSMessagePublisher(JmsTemplate jmsTemplate,
MessageConverter messageConverter) {
this.jmsTemplate = jmsTemplate;
this.messageConverter = messageConverter;
}
public void publishMessage() {
jmsTemplate.setMessageConverter(messageConverter);
jmsTemplate.convertAndSend("test.q1", "Hello World");
}
}
JMSListener类:
@Component
public class JMSListener {
@JmsListener(destination = "test.q1")
public void subscribe(String message) throws Exception {
System.out.println(" message received ::::::::"+message);
throw new Exception("Exception from message listener ");
}
}
我从上面的 subscribe 方法抛出异常,但无法收到 ErrorHandler 的通知,我可以在日志中注意到以下警告。
WARN 1993 --- [enerContainer-1] o.s.j.l.DefaultMessageListenerContainer :
Execution of JMS message listener failed, and no ErrorHandler has been set.
我的JMS配置有什么问题,即如何设置ErrorHandler
以便在handleError(Throwable throwable)
方法中全局捕获/通知所有异常。
我使用publishMessage()
类中的JMSMessagePublisher
方法发布消息(上面给出)。
答案 0 :(得分:1)
ErrorHandler
仅用于处理侦听器在处理消息时抛出的错误(异常)。
由于没有连接,因此没有消息可以处理错误。
您可以编写自己的逻辑,以尝试从连接工厂不时获得连接。
修改强>
我刚刚进行了测试,它对我来说很好......
@SpringBootApplication
public class So49861714Application {
public static void main(String[] args) {
SpringApplication.run(So49861714Application.class, args);
}
@Bean
public ApplicationRunner runner(JmsTemplate template) {
return args -> template.convertAndSend("foo", "testMessage");
}
@Bean
public DefaultJmsListenerContainerFactory jmsListenerContainerFactory(
DefaultJmsListenerContainerFactoryConfigurer configurer,
ConnectionFactory connectionFactory,
ErrorHandler myErrorHandler) {
DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
configurer.configure(factory, connectionFactory);
factory.setErrorHandler(myErrorHandler);
return factory;
}
@Bean
public ErrorHandler myErrorHandler() {
return t -> {
System.out.println("In error handler");
t.printStackTrace();
};
}
@JmsListener(destination = "foo")
public void listen(String in) {
System.out.println(in);
throw new RuntimeException("test");
}
}
和
testMessage
In error handler
org.springframework.jms.listener.adapter.ListenerExecutionFailedException: Listener method 'public void com.example.So49861714Application.listen(java.lang.String)' threw exception; nested exception is java.lang.RuntimeException: test
...
Caused by: java.lang.RuntimeException: test
我刚注意到您的工厂bean名为 myFactory
,但您未在@JmsListener
中指定它。
如果您的应用程序是Spring Boot应用程序,我猜测该侦听器正在使用引导的jmsListenerContainerFactory
bean(这是默认的bean名称)。