Spring 启动无法创建多个 rabbit 连接工厂

Question

我正在尝试通过 xml 使用 spring 引导应用程序连接到两个不同的 rabbitmq 集群并从中使用。当在应用程序上下文中创建单个 rabbit:connection-factory bean 时，它工作得很好。但是，当添加第二个时，它无法启动应用程序，错误为 "Parameter 1 of method rabbitListenerContainerFactory in org.springframework.boot.autoconfigure.amqp.RabbitAnnotationDrivenConfiguration required a single bean, but 2 were found:"。我如何着手为每个集群创建不同的工厂？如果这不是正确的方法，请建议另一种方法吗？

这是 xml 片段：

<rabbit:connection-factory id="firstConnectionFactory" connection-factory="firstSpringConnectionFactory"  />
<rabbit:connection-factory id="secondConnectionFactory" connection-factory="secondSpringConnectionFactory"/>
<bean id="firstSpringConnectionFactory"
class="org.springframework.amqp.rabbit.connection.RabbitConnectionFactoryBean">
    <property name="useSSL" value="${rabbitmq.ssl.enabled}" />
    <property name="host" value="${rabbitmq.first.host}"/>
    <property name="virtualHost" value="${rabbitmq.vhost}"/>
    <property name="port" value="${rabbitmq.cluster.port}"/>
    <property name="username" value="${rabbitmq.user}"/>
    <property name="password" value="${rabbitmq.first.password}"/>
</bean>

<bean id="secondSpringConnectionFactory"
class="org.springframework.amqp.rabbit.connection.RabbitConnectionFactoryBean">
    <property name="useSSL" value="${rabbitmq.ssl.enabled}" />
    <property name="host" value="${rabbitmq.second.host}"/>
    <property name="virtualHost" value="${rabbitmq.vhost}"/>
    <property name="port" value="${rabbitmq.cluster.port}"/>
    <property name="username" value="${rabbitmq.user}"/>
    <property name="password" value="${rabbitmq.second.password}"/>
</bean>

监听器容器代码：

ConnectionFactory cf = rabbitConnectionFactory;//One of the connnection factories will be injected here from app context
SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
container.setConnectionFactory(cf);
container.setConcurrentConsumers(count);
container.addQueueNames(queueName);
container.setMessageListener(listener);
container.start();

Answer 1

因为你不依赖 Spring 在这里启动并且不使用 Spring AMQP 注释支持我建议你从自动 exclude RabbitAnnotationDrivenConfiguration配置：

@EnableAutoConfiguration(exclude={RabbitAnnotationDrivenConfiguration.class})

spring.autoconfigure.exclude = org.springframework.boot.autoconfigure.amqp.RabbitAnnotationDrivenConfiguration

如果您在项目的其他地方仍然需要 @RabbitListener，您只能选择构建所有 @EnableRabbit 基础设施 manually。

Spring 启动无法创建多个 rabbit 连接工厂

Spring boot unable to create multiple rabbit connection factories

spring

spring-boot

spring-amqp