Spring5学习（七）：注解方式进行AOP操作 及 多种通知类型的测试

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
                            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--    开启注解扫描-->
    <context:component-scan base-package="AOPDemo"></context:component-scan>
<!--    开启Aspect生成代理对象-->
    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
</beans>

package AOPDemo;
import org.springframework.stereotype.Component;
/**
 * 用于 用注解方式进行AOP操作
 */
@Component
public class User {
    public void add(){
        System.out.println("hhh");
    }
}

package AOPDemo;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
@Component
@Aspect     //表示生产代理对象
public class UserProxy {
    /**
     * 前置通知
     * 作为通知，在User类的add()之前调用
     */
    @Before(value = "execution(* AOPDemo.User.add(..))")
    public void before(){
        System.out.println("before....");
    }
    /**
     * 最终通知
     */
    @After(value = "execution(* AOPDemo.User.add(..))")
    public void after(){
        System.out.println("after....");
    }
    /**
     * 后置通知（返回通知）
     */
    @AfterReturning(value = "execution(* AOPDemo.User.add(..))")
    public void afterReturning(){
        System.out.println("afterReturning....");
    }
    /**
     * 异常通知
     */
    @AfterThrowing(value = "execution(* AOPDemo.User.add(..))")
    public void afterThrowing(){
        System.out.println("afterThrowing....");
    }
    /**
     * 环绕通知 ,会在被增强的方法前后都执行
     */
    @Around(value = "execution(* AOPDemo.User.add(..))")
    public void around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        System.out.println("around before....");
        //被增强的方法执行
        proceedingJoinPoint.proceed();
        System.out.println("around after....");
    }
}

/**
 * 相同切入点抽取的做法
 */
@Component
@Aspect     //表示生产代理对象
class UserProxy1{
    //相同切入点抽取
    @Pointcut(value = "execution(* AOPDemo.User.add(..))")
    public void pointdemo(){
    }
    /**
     * 前置通知
     * 作为通知，在User类的add()之前调用
     */
    @Before(value = "pointdemo()")
    public void before(){
        System.out.println("before....");
    }
    /**
     * 最终通知
     */
    @After(value = "pointdemo()")
    public void after(){
        System.out.println("after....");
    }
    /**
     * 后置通知（返回通知）
     */
    @AfterReturning(value = "pointdemo()")
    public void afterReturning(){
        System.out.println("afterReturning....");
    }
    /**
     * 异常通知
     */
    @AfterThrowing(value = "pointdemo()")
    public void afterThrowing(){
        System.out.println("afterThrowing....");
    }
    /**
     * 环绕通知 ,会在被增强的方法前后都执行
     */
    @Around(value = "pointdemo()")
    public void around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        System.out.println("around before....");
        //被增强的方法执行
        proceedingJoinPoint.proceed();
        System.out.println("around after....");
    }
}

@Test
    public void test(){
        ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");
        User user = context.getBean("user",User.class);
        user.add();
    }