AspectJ @Before

Before advice runs before the advised method is executed. It is declared using @Before annotation.

For sample code in details, refer the following link. Click Here

1. Aspect Class

Now write a Aspect which will profile our business method.

BusinessAspect.java

package com.kruders.spring.aspect;
 
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
 
@Aspect
public class BusinessAspect {
    @Pointcut("execution(* com.kruders.spring.aop.BusinessImpl*.*(..))")
    public void businessMethods() { }
  
    @Before("businessMethods()")
    public void before() {
        System.out.println("Before method is called");
    }
     
}

2. Output

When you run the above example you’ll get an output like:

Before method is called
Do Something Here