问题:

From producer I have to send message to an RabbitMQ Exchange. this message will contain specific attribute, for example , queue name, based on this attribute, I have to dynamically decide the queue to send this message.[queue to bind from exchange, to send this particular message].

is there any way to intercept the message arriving to a RabbitMQ Exchange, using spring integration, At present , I have the following spring integration config file.

I don't know to how to create a bean to get Exchange Messages and route the message to smsQueue, emailQueue etc., queues.

thanks for you suggestions and replies.

http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit-1.0.xsd

http://www.springframework.org/schema/integration          http://www.springframework.org/schema/integration/spring-integration.xsd       http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/integration/amqp http://www.springframework.org/schema/integration/amqp/spring-integration-amqp.xsd ">  <context:annotation-config></context:annotation-config> <context:component-scan base-package="com.rabbit"></context:component-scan>  <rabbit:connection-factory id="connectionFactory"     host="localhost" username="guest" password="guest" />    <rabbit:admin connection-factory="connectionFactory" /> <rabbit:template id="exchnageTemplate"     connection-factory="connectionFactory" exchange="COMMUNICATION-EXCHANGE" />  <rabbit:queue id="smsQueue" auto-delete="true" durable="false" /> <rabbit:queue id="emailQueue" auto-delete="true" durable="false" /> <rabbit:queue id="dvbQueue" auto-delete="true" durable="false" /> <rabbit:queue id="pbxQueue" auto-delete="true" durable="false" /> <rabbit:queue id="medsensorQueue" auto-delete="true"     durable="false" />   <int:gateway id="gateway" service-interface="com.rabbit.mq.ProducerGatewayInterface"     default-request-channel="producerChannel" />  <int:channel id="producerChannel" /> <int:channel id="errorChannel" />  <bean id="communicationInterface" class="com.rabbit.mq.CommunicationInterface" />  <amqp:outbound-channel-adapter channel="producerChannel"     amqp-template="exchnageTemplate" exchange-name="COMMUNICATION-EXCHANGE">     <int:service-activator input-channel="input"         ref="communicationInterface" method="optimalRoutingOfMessage" /> </amqp:outbound-channel-adapter>

回答1:

With RabbitMQ (AMQP) you don't send to queues, you send to exchanges with a routing key, and bindings determine which queue(s) get the message.

<rabbit:direct-exchange name="si.test.exchange">     <rabbit:bindings>         <rabbit:binding queue="si_test_queue" key="si.test.binding" />     </rabbit:bindings> </rabbit:direct-exchange>  <int-amqp:outbound-channel-adapter     channel="toRabbit" amqp-template="amqpTemplate" exchange-name="si.test.exchange"     routing-key="si.test.binding" />

Instead of routing-key you can use routing-key-expression with something like headers['foo'] or @someBean.determineRoutingKeyFor(payload).

转载请标明出处:Dynamically selecting a RabbitMq queue in Exchange using spring integration

文章来源: Dynamically selecting a RabbitMq queue in Exchange using spring integration

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exchange

RabbitMQ