Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
553 views
in Technique[技术] by (71.8m points)

aspectj pointcut with annotation parameters

I am using aspectj to intercept methods that are annotated with @Profile(description="something")

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Profile {
    public String description() default "";
}

@Around("com.merc.aop.ctw.aspect.PointcutDefinitions.logAnnotatedMethods(profile)")
public Object profile(ProceedingJoinPoint pjp, Profile profile) throws Throwable {
    ....
}

@Pointcut("@annotation(com.merc.annotations.Profile)")
protected void logAnnotatedMethods(Profile profile) {
}

But I get the following error msg while compileing using AJC

formal unbound in pointcut 
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
@Pointcut("@annotation(com.merc.annotations.Profile)")
protected void logAnnotatedMethods(Profile profile) {
}

This is not correct, @annotation() wants a parameter name, not a parameter type.

If your class is compiled with debug code, the pointcut parameter must have the same name as the method parameter, if not, you need to either rely on the parameter types being unique or explicitly write out your parameter names using the argNames parameter:

@Pointcut(value="@annotation(profile)",argNames="profile")
protected void logAnnotatedMethods(Profile arg) {    }

Reference:


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...