import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
public class LoggingInterceptor implements MethodInterceptor {
@Override
public Object invoke(MethodInvocation methodInvocation) throws Throwable {
System.out.println("Before method: " + methodInvocation.getMethod().getName());
Object result = methodInvocation.proceed();
System.out.println("After method: " + methodInvocation.getMethod().getName());
return result;
}
}
import org.aopalliance.aop.Advice;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import java.lang.reflect.Proxy;
public class MainClass {
public static void main(String[] args) {
MyService myService = new MyServiceImpl();
MethodInterceptor interceptor = new LoggingInterceptor();
MyService proxy = (MyService) Proxy.newProxyInstance(
MyService.class.getClassLoader(),
new Class[]{MyService.class},
(MethodInvocation methodInvocation) -> {
interceptor.invoke(methodInvocation);
return methodInvocation.proceed();
}
);
proxy.doSomething();
}
}
interface MyService {
void doSomething();
}
class MyServiceImpl implements MyService {
@Override
public void doSomething() {
System.out.println("Doing something...");
}
}
properties
# application.properties
aopalliance.enabled=true
aopalliance.logging.level=WARN
