Question

我需要帮助，我的应用程序（客户端）连接到RabbitMQ服务器，并且当服务器关闭时，我的应用程序无法启动。...

无法创建监听器，并且应用无法启动。或者当虚拟主机没有队列时，我的应用也无法启动

所以我的问题

1）如何在配置中处理异常（所有异常，如果RabbitMQ服务器出现问题，我需要启动我的应用程序）

2）我的配置中的内容看起来很糟糕，需要重构

我使用

春季4.2.9。发布
org.springframework.amqp 2.0.5.RELEASE
Java 8

我的2个课程

1）Beans RabbitMq的配置

2）侦听器注释

    @EnableRabbit
    @Configuration
    public class RabbitMQConfig {
    @Bean
    public ConnectionFactory connectionFactory() {
        com.rabbitmq.client.ConnectionFactory factoryRabbit = new com.rabbitmq.client.ConnectionFactory();
        factoryRabbit.setNetworkRecoveryInterval(10000);
        factoryRabbit.setAutomaticRecoveryEnabled(true);

        CachingConnectionFactory connectionFactory =
                new CachingConnectionFactory(factoryRabbit);

        connectionFactory.setHost("DRIVER_APP_IP");
        connectionFactory.setPort(5672);
        connectionFactory.setConnectionTimeout(5000);
        connectionFactory.setRequestedHeartBeat(10);
        connectionFactory.setUsername("user");
        connectionFactory.setPassword("pass");
        connectionFactory.setVirtualHost("/vhost");

        return connectionFactory;
    }

    @Bean
    public RabbitTemplate rabbitTemplate() {
        try {
            RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory());
            rabbitTemplate.setRoutingKey(this.DRIVER_QUEUE);
            rabbitTemplate.setQueue(this.DRIVER_QUEUE);
            return rabbitTemplate;
        } catch (Exception ex){
            return new RabbitTemplate();
        }
    }

    @Bean
    public Queue queue() {
        return new Queue(this.DRIVER_QUEUE);
    }


    @Bean
    public SimpleRabbitListenerContainerFactory rabbitListenerContainerFactory() {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        factory.setConnectionFactory(connectionFactory());
        factory.setConcurrentConsumers(3);
        factory.setMaxConcurrentConsumers(10);
        return factory;
    }
    }

    @Component
    public class RabbitMqListener {

    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(value = DRIVER_QUEUE, durable = "true"),
            exchange = @Exchange(value = "exchange", ignoreDeclarationExceptions = "true", autoDelete = "true"))
    )
    public String balancer(byte[] message) throws InterruptedException {
        String json = null;
        try {
             "something move"
        } catch (Exception ex) {
    }
    }

Answer 1

我找到了解决问题的方法

首先是Bean容器！我们需要这个

factory.setMissingQueuesFatal（false）;

此属性提供了当服务器RabbitMQ上的队列丢失时我们的应用程序不会崩溃并可以启动的功能

@Bean

public SimpleRabbitListenerContainerFactory rabbitListenerContainerFactory() {
    SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
    factory.setConnectionFactory(connectionFactory());
    factory.setMissingQueuesFatal(false);
    factory.setConcurrentConsumers(3);
    factory.setStartConsumerMinInterval(3000L);
    factory.setMaxConcurrentConsumers(10);

    factory.setRecoveryInterval(15000L);
    factory.setStartConsumerMinInterval(1000L);
    factory.setReceiveTimeout(10000L);
    factory.setChannelTransacted(true);
    return factory;
}

和秒

@Component
    public class RabbitMqListener {

@RabbitListener(containerFactory = "rabbitListenerContainerFactory", queues = DRIVER_QUEUE)
public String balancer(byte[] message) throws InterruptedException {
    String json = null;
    try {
         "something move"
    } catch (Exception ex) {
}
}

我在@RabbitListener中设置containerFactory和Queue并删除其他属性，因为我不需要希望对您有所帮助，谢谢大家的关注，对不起我的英语

RabbitMQ连接失败

1 个答案: