Spring切面优先级与基于xml的AOP实现方法详解

@Component
@Aspect
@Order(1)
public class ValidateAspect {
//    @Before("execution(* com.tian.spring.aop.annotation.CalculatorImpl.*(..))")
    @Before("com.tian.spring.aop.annotation.LoggerAspect.pointCut()")
    public void beforeMethod() {
        System.out.println("ValidateAspect-->前置通知");
    }
}

public class AOPTest {
    @Test
    public void testAOPByAnnotation() {
        ApplicationContext ioc = new ClassPathXmlApplicationContext("aop-annotation.xml");
        Calculator calculator = ioc.getBean(Calculator.class);
        calculator.div(10,1);
    }
}

    <!--扫描组件-->
    <context:component-scan base-package="com.tian.spring.aop.xml"></context:component-scan>
    <aop:config>
        <!--设置一个公共的切入点表达式-->
        <aop:pointcut id="pointCut" expression="execution(* com.tian.spring.aop.xml.CalculatorImpl.*(..))"/>
        <!--将IOC容器中的某个bean设置为切面-->
        <aop:aspect ref="loggerAspect">
            <aop:before method="beforeAdviceMethod" pointcut-ref="pointCut"></aop:before>
            <aop:after method="afterAdviceMethod" pointcut-ref="pointCut"></aop:after>
            <aop:after-returning method="afterReturningAdviceMethod" returning="result" pointcut-ref="pointCut"></aop:after-returning>
            <aop:after-throwing method="afterThrowingAdvice" throwing="ex" pointcut-ref="pointCut"></aop:after-throwing>
            <aop:around method="aroundAdviceMethode" pointcut-ref="pointCut"></aop:around>
        </aop:aspect>
        <aop:aspect ref="validateAspect" order="1">
            <aop:before method="beforeMethod" pointcut-ref="pointCut"></aop:before>
        </aop:aspect>
    </aop:config>

public class AOPByXMLTest {
    @Test
    public void testAOPByXML() {
        ApplicationContext ioc = new ClassPathXmlApplicationContext("aop-xml.xml");
        Calculator calculator = ioc.getBean(Calculator.class);
        calculator.add(1,2);
    }
}