public interface ISomeService {

    public void doSome();

    public void dade();

}

public class SomeService implements ISomeService {

    //核心业务

    public void doSome(){

        System.out.println("我们都要找到Java开发工作，薪资6,7,8,9,10K");

    }

    public void dade() {

        //异常

        //int sun=5/0;

        System.out.println("++++++++++++++de+++++++++++++");

    }

}

public class MyAspect {

    //前置增强

    public void before(){

        System.out.println("=====before========");

    }

    //后置增强

    public void afterReturing(){

        System.out.println("=====after========");

    }

    //后置增强   目标方法的返回值

    public void afterReturing(String result){

        System.out.println("=====后置通知方法 result========"+result);

    }

    //环绕通知

    public Object around(ProceedingJoinPoint pjp) throws Throwable {

        System.out.println("目标方法执行前执行");

        Object result = pjp.proceed();

        System.out.println("目标方法执行后执行");

        String temp=null;

        if (result!=null) {

            temp = (String) result;

            temp=temp.toUpperCase();

        }

        return temp;

    }

    //异常通知

    public void afterThrowing(){

        System.out.println("异常通知");

    }

    //异常通知

    public void afterThrowing(Exception ex){

        System.out.println("异常通知 ex="+ex.getMessage());

    }

    //最终通知

    public void after(){

        System.out.println("最终通知");

    }

}

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

       xmlns:aop="http://www.springframework.org/schema/aop"

       xmlns:context="http://www.springframework.org/schema/context"

       xmlns:p="http://www.springframework.org/schema/p"

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

       xsi:schemaLocation="

        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd

        http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context.xsd

">

    <!--.目标对象-->

    <bean id="someService" class="cn.bdqn.spring18.SomeService"></bean>

    <!--.增强类-->

    <bean id="aspect" class="cn.bdqn.spring18.MyAspect"></bean>

    <!--aop-->

    <aop:config>

        <!--设置一个切点-->

        <aop:pointcut id="mycut" expression="execution(* *..spring18.*.*(..))"></aop:pointcut>

        <aop:aspect ref="aspect">

            <aop:before method="before" pointcut-ref="mycut"></aop:before>

            <aop:after-returning method="afterReturing" pointcut-ref="mycut"></aop:after-returning>

            <aop:after-returning method="afterReturing(java.lang.String)" returning="result" pointcut-ref="mycut"></aop:after-returning>

            <aop:around method="around" pointcut-ref="mycut"></aop:around>

            <aop:after-throwing method="afterThrowing" pointcut-ref="mycut"></aop:after-throwing>

           <aop:after-throwing method="afterThrowing(java.lang.Exception)" throwing="ex" pointcut-ref="mycut"></aop:after-throwing>

            <aop:after method="after" pointcut-ref="mycut"></aop:after>

        </aop:aspect>

    </aop:config>

</beans>

 //aspectj xml

    @Test

    public void test20(){

        ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContextspring16.xml");

        ISomeService service = (ISomeService) ctx.getBean("someService");

        service.doSome();

        service.dade();

    }