java无法运行@Advice catch异常块

Question

这是我创建的Aop特性，用于在我的主应用程序抛出错误后运行

package com.demo.aspects;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

@Component
@Aspect
public class MyAroundAspect {

  @Around("execution(* com.demo.aop.*.getFortune(..))")
  public Object aroundAdviceDemo(ProceedingJoinPoint thePJP) throws Throwable
  {
    System.out.println("run this before the fortune method");

    Object result = null;
    try {
      result = thePJP.proceed();
    }
    catch(Exception exc)
    {   //this should run but is not running
      System.out.println("Catching the " + exc.getMessage());
    }


    System.out.println("Run this after the fortune service");

    return result;
  }
}

这是我的trafficFortuneservuce类，它有一个抛出错误的方法，我正在尝试使用@Around建议捕获该错误

package com.demo.aop;

import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

@Aspect
@Component
public class TrafficFortuneService {

  public String getFortune(boolean tripwire)
  {
    if(tripwire)
    {    //this is running but it should go to the advice catch block
      throw new RuntimeException("Inside run time exception in the fortune service");
    }

    return "Today is your lucky day";
  }
}

这是我运行应用程序的主要方法类

package com.demo.aop.app;

import java.util.List;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;

import com.demo.aop.Account;
import com.demo.aop.AccountDAO;
import com.demo.aop.AppConfig;
import com.demo.aop.MemberDAO;
import com.demo.aop.TrafficFortuneService;

public class AroundDemoApp {

  public static void main(String[] args) {
    //Getting context object
    AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
    TrafficFortuneService theService = context.getBean("trafficFortuneService", TrafficFortuneService.class);
    boolean tripwire = true;
    String temp =   theService.getFortune(tripwire);

    System.out.println(temp);

    context.close();
  }
}

这里是输出，它正在打印我在trafficfortuneservice类中声明的消息

Exception in thread "main" java.lang.RuntimeException: Inside run time exception in the fortune service
    at com.demo.aop.TrafficFortuneService.getFortune(TrafficFortuneService.java:15)
    at com.demo.aop.app.AroundDemoApp.main(AroundDemoApp.java:20)

Answer 1

不要将普通的应用程序类设置为@Aspect。首先，这毫无意义。其次，Spring AOP方面不能相互建议，所以你实际上是在阻止自己实现目标，朝自己的脚开枪

---

更新：我说的是：

//@Aspect <  You got to get rid of this, the serice is not an aspect!
@Component
public class TrafficFortuneService {
  // (...)
}

Answer 2

将@EnableAspectJAutoProxy添加到spring配置类（添加到MyAroundAspect.java是可以的）

Spring Boot将自动使用@SpringBootApplication打开此函数，如here所述，因此在正常的Spring Boot应用程序中，不必手动标记此注释。但在您的情况下，您是手动启动应用程序的，因此无法正常工作