Spring初始化顺序- RabbitMq 无法自动创建队列

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最新推荐文章于 2025-02-21 09:27:46 发布

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分类专栏： Spring 文章标签： java-rabbitmq rabbitmq spring

本文链接：https://blog.youkuaiyun.com/qq_27061805/article/details/130006697

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本文介绍了在Spring项目中遇到RabbitMQ队列无法自动创建的问题，通过源码分析发现是由于bean的创建顺序导致部分bean在重复创建，影响了RabbitAdmin获取并创建队列。解决方案是将RabbitAdmin改为类属性注入，以避免重复创建问题。

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Spring初始化顺序- RabbitMq 无法自动创建队列

项目中使用了RabbitMq, 并配置了自动创建topic, exchange,binding 等，但是通过测试发现，有一个队列始终无法自动创建，在对spring 源码以及rabbitmq 源码debug 后发现问题。

rabbitmq 配置了两套环境 , 以下为代码示例

@Configuration
public class RabbitMqConfiguration {
   
    /**
     * one mq配置
     */
    @Bean(name = "oneRabbitMQProperties")
    @ConfigurationProperties(prefix = "spring.rabbitmq.one")
    public RabbitMQProperties oneRabbitMQProperties() {
   
        return new RabbitMQProperties();
    }

    @Primary
    @Bean(name = "oneRabbitConnectionFactory")
    public ConnectionFactory oneRabbitConnectionFactory(@Qualifier("oneRabbitMQProperties") RabbitMQProperties rabbitMQProperties) {
   
        return connectionFactory(rabbitMQProperties, false);
    }

    @Primary
    @Bean("oneRabbitMqAdmin")
    public RabbitAdmin oneRabbitMqAdmin(@Qualifier("oneRabbitConnectionFactory") ConnectionFactory oneRabbitConnectionFactory){
   
        return new RabbitAdmin(oneRabbitConnectionFactory);
    }

    @Primary
    @Bean(name = "oneRabbitTemplate")
    public RabbitTemplate oneRabbitTemplate(@Qualifier("oneRabbitConnectionFactory") ConnectionFactory connectionFactory) {
   
        return new RabbitTemplate(connectionFactory);
    }


    /**
     * two mq配置
     */
    @Bean(name = "twoRabbitMQProperties")
    @ConfigurationProperties(prefix = "spring.rabbitmq.two")
    public RabbitMQProperties twoRabbitMQProperties() {
   
        return new RabbitMQProperties();
    }

    @Bean(name = "twoRabbitConnectionFactory")
    public ConnectionFactory twoRabbitConnectionFactory(@Qualifier("twoRabbitMQProperties") RabbitMQProperties rabbitMQProperties) {
   
        return connectionFactory(rabbitMQProperties, false);
    }

    @Bean("twoRabbitMqAdmin")
    public RabbitAdmin twoRabbitMqAdmin(@Qualifier("twoRabbitConnectionFactory") ConnectionFactory twoRabbitConnectionFactory){
   
        return new RabbitAdmin(twoRabbitConnectionFactory);
    }

    @Bean(name = "twoRabbitTemplate")
    public RabbitTemplate twoRabbitTemplate(@Qualifier("twoRabbitConnectionFactory") ConnectionFactory connectionFactory) {
   
        return new RabbitTemplate(connectionFactory);
    }



    private ConnectionFactory connectionFactory(RabbitMQProperties rabbitMQProperties, boolean transaction) {
   
        CachingConnectionFactory factory = new CachingConnectionFactory(rabbitMQProperties.getHost(), rabbitMQProperties.getPort());
        factory.setUsername(rabbitMQProperties.getUsername());
        factory.setPassword(rabbitMQProperties.getPassword());
        factory.setPublisherConfirms(!transaction);
        factory.setPublisherReturns(true);
        factory.setVirtualHost(rabbitMQProperties.getVirtualHost());
        return factory;
    }

Queue, Exchange, Binding 自动生成配置：

@Configuration
public class RabbitMqQueueConfiguration {
   

    @Bean
    public Queue oneQueue(@Qualifier("oneRabbitMqAdmin") RabbitAdmin oneRabbitMqAdmin) {
   
        Queue queue = new Queue("one_auto_test");
        queue.setAdminsThatShouldDeclare(oneRabbitMqAdmin);
        return queue;
    }


    @Bean
    public DirectExchange oneExchange(@Qualifier("oneRabbitMqAdmin") RabbitAdmin oneRabbitMqAdmin) {
   
        DirectExchange exchange = new DirectExchange("one_auto_test");
        exchange.setAdminsThatShouldDeclare(oneRabbitMqAdmin);
        return exchange;
    }

    @Bean

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