Question

spring-rabbitmq的opentracing工具没有定义用于跟踪org.springframework.amqp.rabbit.core.RabbitTemplate#send的方面。这是代码的链接：RabbitMqSendTracingAspect.java

我尝试实现它，并且在定义切入点时遇到了一些严重的错误。

这是我的相同代码：


@Aspect
@Configuration
public class AmqpSendTracingAspect {
    private final Tracer tracer;

    public AmqpSendTracingAspect(Tracer tracer) {
        this.tracer = tracer;
    }

    @Around(value = "execution(* org.springframework.amqp.core.AmqpTemplate.send(..)) " +
            "&& args(exchange,routingKey, message)", 
            argNames = "pjp,exchange,routingKey,message")
    public Object traceAmqpSend(ProceedingJoinPoint pjp, 
        String exchange, String routingKey, Message message) throws Throwable {

        final Object[] args = pjp.getArgs();

        System.out.println("Aspect RUnning");

        final MessageProperties messageProperties = message.getMessageProperties();

        Scope scope = AmqpTracingUtils.buildSendSpan(tracer, messageProperties);
        tracer.inject(
                scope.span().context(),
                Format.Builtin.TEXT_MAP,
                new AmqpInjectAdapter(messageProperties));

        AmqpSpanDecorator spanDecorator = new AmqpSpanDecorator();
        spanDecorator.onSend(messageProperties, exchange, routingKey, scope.span());

        args[2] = message;

        try {
            return pjp.proceed(args);
        } catch (Exception ex) {
            spanDecorator.onError(ex, scope.span());
            throw ex;
        } finally {
            scope.close();
        }
    }
}

即使我用CglibAopProxy注释，我仍从@EnableAspectJAutoProxy(proxyTargetClass = false)框架中收到以下错误消息

Unable to proxy interface-implementing method [public final void org.springframework.amqp.rabbit.core.RabbitTemplate.start()] because it is marked as final: Consider using interface-based JDK proxies instead!

Unable to proxy interface-implementing method [public final void org.springframework.amqp.rabbit.core.RabbitTemplate.stop()] because it is marked as final: Consider using interface-based JDK proxies instead!

请帮帮我！

Answer 1

这不是错误。产生该消息的代码如下：

if (implementsInterface(method, ifcs)) {
                        logger.info("Unable to proxy interface-implementing method [" + method + "] because " +
                                "it is marked as final: Consider using interface-based JDK proxies instead!");
                    }

因此，它是info，并且完全不会阻止您的应用程序随后运行。只是不使用RabbitTemplate.start()方法的指针，绝对不能。所以，到目前为止，你还不错。

我认为，由于您使用的是Spring Cloud，因此无法使用该@EnableAspectJAutoProxy覆盖AOP配置，因此它始终使用CglibAopProxy。

我只会忽略那个info。最好不要为框架类别设置这样的日志记录级别。

在定义用于跟踪RabbitMQ发送的方面时修复切入点定义错误

1 个答案: