springboot之aspectj实现的aop

①需要的依赖包

org.springframework.boot
spring-boot-starter-aop
2.0.0.RELEASE

②编写切面类

@Aspect
@Component
public class CheckUserRoleAop {

@Pointcut("execution(public * com.example.demo.controller.HelloSpringBoot.*(..))")
public void pointCut(){}

/**
* 环绕通知需要返回值（返回值的类型与被代理类相同）
* @param joinPoint
* @return
* @throws Throwable
*/
@Around("pointCut()")
public String checkRoleAop(ProceedingJoinPoint joinPoint) throws Throwable {

return (String) joinPoint.proceed();

}

}