@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Loggable {
}
public class Example {
@Loggable
public void doSomething() {
// perform some action
}
}
public class Logger {
public static void logMethodCall(Method method) {
System.out.println("Method called: " + method.getName());
}
}
public class LoggableAspect {
@Around("@annotation(Loggable)")
public Object logMethodInvocation(ProceedingJoinPoint joinPoint) throws Throwable {
MethodSignature signature = (MethodSignature) joinPoint.getSignature();
Method method = signature.getMethod();
Logger.logMethodCall(method);
return joinPoint.proceed();
}
}
@Configuration
@EnableAspectJAutoProxy
public class AppConfig {
@Bean
public LoggableAspect loggableAspect() {
return new LoggableAspect();
}
@Bean
public Example example() {
return new Example();
}
}
public class Main {
public static void main(String[] args) {
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
Example example = context.getBean(Example.class);
example.doSomething();
context.close();
}
}
