How to debug Spring AOP

Question

I have a problem with Spring AOP which doesn't ties an aspect to all the methods it should (in my opinion) (see this question for more about the root problem: Spring AOP ignores some methods of Hessian Service).

How can I debug, what methods and instances get combined with what aspect? Is there something like a verbose flag for spring aop, which gives that information?

score 16 · Accepted Answer · answered Feb 28 '11 at 12:34

16

There seems not to be too much logging code in the Spring AOP classes, but...

In case Spring AOP decides to use Cglib to create proxy, there's one line which might help you:

    // in org.springframework.aop.framework.Cglib2AopProxy.getProxy(ClassLoader)
    if (logger.isDebugEnabled()) {
        logger.debug("Creating CGLIB2 proxy: target source is " + this.advised.getTargetSource());
    }

A similar one seems to come in handy when JDK proxies are used:

    // in org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(ClassLoader)
    if (logger.isDebugEnabled()) {
        logger.debug("Creating JDK dynamic proxy: target source is " + this.advised.getTargetSource());
    }

Just try to turn on DEBUG-level logging for these two classes and see what's the output.

answered Feb 28 '11 at 12:34

Grzegorz Oledzki

23,614
16
68
106

1

Great pointer I used this as a starting point for actually debugging through the spring AOP code. – Jens Schauder Mar 01 '11 at 15:39
1

How to I enable DEBUG level logging for these two classes? I use logback. – Adam Arold May 07 '13 at 11:03
For logback add something like: `` – sqreept Apr 03 '16 at 21:11
I guess in a Spring Boot based application adding the property `logging.level.org.springframework.aop: DEBUG` in a common properties file like `application.yml` should do the job. – Krzysztof Tomaszewski Apr 26 '22 at 12:20

How to debug Spring AOP

1 Answers1

Linked