咨询Spring MVC HTTP消息转换器

Question

I am trying to advice spring http message converter but, I can't get it to work.

@Pointcut("within(org.springframework.http.converter.xml.MarshallingHttpMessageConverter)")
public void converterPointcut() {
}

@Pointcut("execution(* *(..))")
public void converterMethodPointcut() {
}

@Around("converterPointcut() && converterMethodPointcut()")
public Object aroundConverter(ProceedingJoinPoint iJoinPoint) {
    Object aProceed = null;
    try {
        aProceed = iJoinPoint.proceed();
    } catch (Throwable anException) {
        anException.printStackTrace();
    }
    return aProceed;
}

Anything wrong here?

Answer 1

a) using within , you are only advising the Methods of the MarshallingHttpMessageConverter class, are you sure that's what you want?

b) to weave a library class you need to either set up load time weaving or run the spring jars through the aspectj compiler (ouch, don't do that) . Do you have load time weaving set up?

c) define can't get it to work: what happens, what doesn't happen?

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Update: I think you are trying to solve the wrong problem. Don't use AspectJ, just extend the class ( none of the methods are final ) and register the extended class as HttpMessageConverter