spring-amqp

问题 I have a requirement to send message to MessageListener after certain duration , So is there any way to achieve using Spring AMQP. Eg . Producer produces the message and message goes to RabbitMQ Q , The message gets received Listener listening to that Q immediately, I want to delay that message to be received at consumer side say after some configuration parameter say 1000ms 回答1: The RabbitMQ provides for this purpose Delayed Exchange feature. Starting with version 1.6 Spring AMQP also

问题 I am trying to avoid situation, when thread reading messages from queue is dead, but application is up and running, so its hard to detect problem. Lets have code: @RabbitListener(queues = "${enc-correlation.correlation-request-queue}") public void takeIndexTask(@Payload ConversationList list) throws InterruptedException { //just simulation of failure throw new OutOfMemoryError(); } This will end up with application running, but not processing new messages. I tried jvm parameter: -XX

问题 I have an application with two ConnectionFactory (different brokers). They are configured with java classes: @Bean public ConnectionFactory ... @Bean public Queue ... ... In rabbittemplate you can indicate the connection, but not in queues or in the exchanges, so they are being created in the two connections. Do I have to use RabbitAdmin to create queues in only one of the two connections? is there any other way? 回答1: See the documentation : Conditional Declaration. Starting with the 1.2

问题 Need a solution to write a data on RabbitMQ using AmqpWriter and read the data using RabbitMQ using AmqpReader . We're not looking for Apache Kafka, we want to simply send say Program details and consume it. Writer Code JobConfig.java @Configuration public class JobConfig { @Autowired private StepBuilderFactory stepBuilderFactory; @Autowired private JobBuilderFactory jobBuilderFactory; @Bean public ConnectionFactory connectionFactory() { return new CachingConnectionFactory("localhost"); }

问题 Need a solution to write a data on RabbitMQ using AmqpWriter and read the data using RabbitMQ using AmqpReader . We're not looking for Apache Kafka, we want to simply send say Program details and consume it. Writer Code JobConfig.java @Configuration public class JobConfig { @Autowired private StepBuilderFactory stepBuilderFactory; @Autowired private JobBuilderFactory jobBuilderFactory; @Bean public ConnectionFactory connectionFactory() { return new CachingConnectionFactory("localhost"); }

问题 I have a situation where I need to register queues dynamically in a run-time to a SimpleMessageListenerContainer . The problem I am experiencing is a deadlock that happens because of this: Thread: [52] Thread1 wants the lock java.lang.Object@5537e0df org.springframework.amqp.rabbit.connection.CachingConnectionFactory.getDeferredCloseExecutor(CachingConnectionFactory.java:907) org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.restart(SimpleMessageListenerContainer.java

问题 I have a situation where I need to register queues dynamically in a run-time to a SimpleMessageListenerContainer . The problem I am experiencing is a deadlock that happens because of this: Thread: [52] Thread1 wants the lock java.lang.Object@5537e0df org.springframework.amqp.rabbit.connection.CachingConnectionFactory.getDeferredCloseExecutor(CachingConnectionFactory.java:907) org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.restart(SimpleMessageListenerContainer.java

问题 Is it possible to make these settings for each queue? I have queues that are important so i need a larger number of retries, but have less important queues that I do not want to configure retry, attempt, etc public Queue newQueue(String name) { return new Queue(name, durable, exclusive, autoDelete, arguments); } I saw that in the Queue class, it is possible to pass an argument map as the last parameter, but I do not know if it would be here, or via properties. 回答1: In my case I had to create

问题 I have spring boot rabbitmq application where i have to send an Employee object to queue. Then i have set up a listener application. Do some processing on employee object and put this object in call back queue. For this, i have created below objects in my appication. Created ConnectionFactory . Created RabbitAdmin object using ConnectionFactory .. Request Queue. Callback Queue. Direct Exchange. Request Queue Binding. Callback Queue Binding. MessageConverter. RabbitTemplate object. And finally

问题 I have spring boot rabbitmq application where i have to send an Employee object to queue. Then i have set up a listener application. Do some processing on employee object and put this object in call back queue. For this, i have created below objects in my appication. Created ConnectionFactory . Created RabbitAdmin object using ConnectionFactory .. Request Queue. Callback Queue. Direct Exchange. Request Queue Binding. Callback Queue Binding. MessageConverter. RabbitTemplate object. And finally