从AspectJ中的带批注方法获取局部变量值

Question

I am using java custom annotation with aspectJ

CUSTOM ANNOTATION

@Documented
@Target(ElementType.METHOD)
@Inherited
@Retention(RetentionPolicy.RUNTIME)
public @interface TrxLogger {

String author() default "Shahid Ghafoor";
String comments() default "I am Fan of JAVA";
}

SERVICE

public class Service {

private String name;

public String getName() {
    return name;
}


public void setName(String name) {
    this.name = name;
}

@TrxLogger
public String sayHello(String fn, String ln) {

    this.name=fn;

     String localVariable="Before System.out.println";

    System.out.println("Welcome!" + fn + " " + ln);

    return "The Transaction return Value";
}

}

ASPECT

@Around(value="pcSample(tl)", argNames="tl")
public Object runMethod(ProceedingJoinPoint pjp, TrxLogger tl) throws Throwable {

 return null;
}

is it possible to get local variable value( String localVariable="Before System.out.println"; ) of sayHello() Method in aspect ?

Answer 1

No, a local variable is just that, local. You cannot dig into the method to access it. The body of a method is not accessible through reflection.

Answer 2

when method sayHello execute that time only lovalVariable have value. otherwise it's not known by anybody.