/**
 * 切面：日誌
 * @author w7
 *
 */
public class Logger {
    public void logging(){
        System.out.println("logging");
    }
}

/**
 * 切面：安全框架
 * @author w7
 *
 */
public class Security {
    public void security(){
        System.out.println("security");
    }
}

/**
 * 切面:許可權
 * @author w7
 *
 */
public
 
 class Privilege {
    private String access;
    public String getAccess() {
        return access;
    }
    public void setAccess(String access) {
        this.access = access;
    }

    /**
     * 環繞通知方法
     * 
     * @param joinPoint 目標方法，有返回值 
     * @return
     * @throws Throwable
     */
    public
 
 Object controlTarget(ProceedingJoinPoint joinPoint) throws Throwable{

        Object obj = null; //目標方法返回值 

        if(this.getAccess().equals("admin")){
            obj = joinPoint.proceed();//呼叫目標方法
        }else{
            System.out.println("許可權不足");
        }
        return obj;
    }
}

/**
 * 業務介面
 * @author
 
 w7
 *
 */
public interface SalaryManager {
    /**
     * 檢視工資
     */
    public String showSalary();
}

/**
 * 目標類：業務實現
 * @author w7
 *
 */
public class SalaryManagerImpl implements SalaryManager{

    public String showSalary() {
        System.out.println("正在檢視工資");
        return "aaaa";
    }
}

/**
 * 第二個 環繞通知測試
 * 
 * 如果有多個環繞通知時，則所有環繞通知 執行完畢後，才執行目標方法
 * @author w7
 *
 */
public class AroundClass {
    public void aroundMethod(ProceedingJoinPoint joinPoint) throws Throwable{
        System.out.println("----------------");
        joinPoint.proceed();
    }
}

//xml配置
<bean id="salaryManager" class="com.itheima09.springaop.xml.salary.SalaryManagerImpl"></bean>

    <!--
         引入多個切面
        logger：日誌系統
        security：安全框架
        privilege：許可權控制
     -->
    <bean id="logger" class="com.itheima09.springaop.xml.salary.Logger"></bean>
    <bean id="security" class="com.itheima09.springaop.xml.salary.Security"></bean>
    <bean id="privilege" class="com.itheima09.springaop.xml.salary.Privilege">
        <property name="access" value="admin"></property>
    </bean>  

    <!-- 
        多個環繞通知 測試
     -->
    <bean id="aroundClass" class="com.itheima09.springaop.xml.salary.AroundClass"></bean>

    <aop:config>
        <aop:pointcut 
            expression="execution(* com.itheima09.springaop.xml.salary.SalaryManagerImpl.*(..))" 
            id="perform"/>

        <aop:aspect ref="logger">
            <aop:before method="logging" pointcut-ref="perform"/>
        </aop:aspect>
        <aop:aspect ref="security">
            <aop:before method="security" pointcut-ref="perform"/>
        </aop:aspect>
        <aop:aspect ref="privilege">
            <aop:around method="controlTarget" pointcut-ref="perform"/>
        </aop:aspect>

        <aop:aspect ref="aroundClass">
            <aop:around method="aroundMethod" pointcut-ref="perform"/>
        </aop:aspect>
    </aop:config>   

    @Test
    public void test(){
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

        SalaryManager salaryManager = (SalaryManager)context.getBean("salaryManager");

        //執行目標方法
        String s = salaryManager.showSalary();
        System.out.println(s);
    }
結果：
logging
security
----------------  // 第二個環繞通知執行的輸出
正在檢視工資       //目標方法執行結果
null             //目標方法返回值