[Solved] Why does this @Before advice not execute?@Befo... Why does this @Before advice not execute?@Before("execution(* com.example.service.*.process(..))") public void log() { System.out.println("Logging"); | Spring Boot

Spring Boot - Aspect-Oriented Programming

Why does this @Before advice not execute?

@Before("execution(* com.example.service.*.process(..))")
public void log() {
  System.out.println("Logging");
}

Given the target method is com.example.Service.process().

AAdvice method must return a value

BAdvice method is missing @Aspect annotation

CAdvice method must have parameters

DPointcut expression does not match the target class name

Step-by-Step Solution

Solution:

Step 1: Analyze pointcut expression
The pointcut targets classes in package com.example.service, but target class is com.example.Service (case sensitive).
Step 2: Confirm other conditions
@Aspect is needed on the aspect class, not the advice method; parameters and return type are optional for @Before.
Final Answer:
Pointcut expression does not match the target class name -> Option D
Quick Check:
Pointcut must match exact package and class names [OK]

Quick Trick: Pointcut must exactly match target method signature [OK]

Common Mistakes:

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