XML实现AOP（转）

代码一：接口和实现类 

package
 cn.itcast.server;
public
 
interface
 IPersonService {
    public
 
void
 save(String name);
    public
 String getPersonName(Integer id);
    public
 
void
 update(String name,Integer id);
}

package
 cn.itcast.server.impl;
import
 cn.itcast.server.IPersonService;
public
 
class
 PersonServiceBean2 
implements
 IPersonService {
    public
 String getPersonName(Integer id) {
        System.out.println("这是getPersonName方法"
);
        return
 
"xxx"
;
    }
    public
 
void
 save(String name) {
//      throw new RuntimeException("我是例外");
        System.out.println("这是save方法"
);
    }
    public
 
void
 update(String name, Integer id) {
        System.out.println("这是update方法"
);
    }
}

代码二：拦截器的定义 

package
 cn.itcast.server;
import
 org.aspectj.lang.ProceedingJoinPoint;

public
 
class
 MyInteceptor2 {
    public
 
void
 doAccessCheck(){
        System.out.println("这里输出的是前置通知   "
);
    }
    public
 
void
 doAfterReturning(){
        System.out.println("这里输出的是后置通知    "
 );
    }
    public
 
void
 doAfterReturn(){
        System.out.println("这里输出的是最终通知"
);
    }
    public
 
void
 doAfterThrowing(){
        System.out.println("这里输出的是例外通知   "
);
    }
    public
 Object doBasicProfiling(ProceedingJoinPoint pjp) 
throws
 Throwable{
        //判断用户是否具有权限
            System.out.println("进入方法"
);
            Object result = pjp.proceed();
            System.out.println("退出方法"
);
            return
 result;
    }
}

代码三：配置文件 

<?
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-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           ">
        <
aop:aspectj-autoproxy
/>
        <!--AOP开发（基于xml配置进行AOP开发，基于注解方式进行AOP开发）  -->
        <
bean
 
id
=
"myInteceptor2"
 
class
=
"cn.itcast.server.MyInteceptor2"
>
</
bean
>
        <
bean
 
id
=
"personService2"
 
class
=
"cn.itcast.server.impl.PersonServiceBean2"
>
</
bean
>
        <
aop:config
>
            <
aop:aspect
 
id
=
"asp"
 
ref
=
"myInteceptor2"
>
                <!-- expression说明要处理的切入点（方法），下面那个意思是过滤任意返回类型的，cn.itcast.server.impl.PersonServiceBean2类中的任意参数的切入点 -->
        <!--     <aop:pointcut id="mycut" expression="execution(* cn.itcast.server.impl.PersonServiceBean2.*(..) )"/>  -->
            <
aop:pointcut
 
id
=
"mycut"
 
expression
=
"execution(* cn.itcast.server.impl.PersonServiceBean2.*(java.lang.String,..) )"
/>
        <!--     <aop:pointcut id="mycut" expression="execution(!void cn.itcast.server.impl.PersonServiceBean2.*(..) )"/> -->
                <
aop:before
 
pointcut-ref
=
"mycut"
 
method
=
"doAccessCheck"
/>
                <
aop:after-returning
 
pointcut-ref
=
"mycut"
 
method
=
"doAfterReturning"
/>
                <
aop:after-throwing
 
pointcut-ref
=
"mycut"
 
method
=
"doAfterThrowing"
/>
                <
aop:after
 
pointcut-ref
=
"mycut"
 
method
=
"doAfterReturn"
/>
                <
aop:around
 
pointcut-ref
=
"mycut"
 
method
=
"doBasicProfiling"
/>
            </
aop:aspect
>
        </
aop:config
>
</
beans
>

测试类： 

package
 junit.test;
import
 org.junit.BeforeClass;
import
 org.junit.Test;
import
 org.springframework.context.ApplicationContext;
import
 org.springframework.context.support.ClassPathXmlApplicationContext;
import
 cn.itcast.server.IPersonService;
public
 
class
 SpringAOPTest {
    @BeforeClass
    public
 
static
 
void
 setUpBeforeClass() 
throws
 Exception {
    }
    @Test
 
public
 
void
 interceptorTest(){
        ApplicationContext ac = new
 ClassPathXmlApplicationContext(
"beans.xml"
);
        IPersonService ipersonService = (IPersonService) ac.getBean("personService2"
);
        ipersonService.update("xxx"
,
2
);
        ipersonService.save("xx"
);
        ipersonService.getPersonName(2
);
    }
}