java - Spring AOP : Only Context Beans Could be Adviced?

Question

我是 Spring AOP 的新手，我尝试使用一个方面进行日志记录。这是我的配置:

方面:

@Aspect
public class LoggerAspect {

 @Pointcut("execution(* aop.LoggerAspTest.*(..))")
 private void infoMethods(){}

 @Before("infoMethods()")
 public void logBefore(JoinPoint joinPoint) {
   Logger logger = Logger.getLogger(joinPoint.getTarget().getClass());

    logger.info("joinPoint's kind: " + joinPoint.getKind());
    logger.info("joinPoint's args: " + joinPoint.getArgs());
    logger.info("joinPoint's source location: " + joinPoint.getSourceLocation());
    logger.info("joinPoint's staticPart: " + joinPoint.getStaticPart());
    logger.info("joinPoint's targetClass: " + joinPoint.getTarget().getClass());
    logger.info("joinPoint's this: " + joinPoint.getThis());
 }
}

测试类:

@Component
public class LoggerAspTest {
  // test method
  public void getInfo() {
    System.out.println("in the logger aspect test method!!!");
  }
}

类 - 执行者:

public class Main {
  // main
  public static void main(String[] args) {
    ApplicationContext ctx = new FileSystemXmlApplicationContext("applicationContext.xml");
    LoggerAspTest aspect = (LoggerAspTest) ctx.getBean("aspectTest");
    aspect.getInfo();
 }

最后 - applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:aop="http://www.springframework.org/schema/aop"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">

<aop:aspectj-autoproxy/>
<bean id="aspectTest" class="aop.LoggerAspTest"/>
...

嗯，一切正常。但是当我更改类执行器(Main)时，我不是通过 Spring 的 ApplicationContext.getBean() 而是通过 LoggerAspTest aspect = new LoggerAspTest(); 创建 LoggerAspTest。该方面什么都不做。

问题是:“方面是否只适用于由 Spring 的上下文实例化的 bean？”。我真的希望方面像“全局拦截器”一样工作，知道它们必须继续执行哪些方法...

提前致谢。

Answer 1

是的，它需要是 spring bean