Spring的xml配置一个小问题

 

<bean id="pureAudience" class="com.springinaction.springidol.PureAudience" />
  <aop:config>
  
    <aop:aspect ref="pureAudience">
     <aop:pointcut
        id="performance"
        expression="execution(* *.perform(..))" />
      <aop:before
          method="takeSeats" pointcut-ref="performance" />
          <!-- pointcut="execution(* *.perform(..))" />-->
         
      <aop:before
          method="turnOffCellPhones" pointcut-ref="performance" />
          <!-- pointcut="execution(* *.perform(..))" />-->
      <aop:after-returning
          method="applaud" pointcut-ref="performance" />
          <!--pointcut="execution(* *.perform(..))" />-->
      <aop:after-throwing
          method="demandRefund" pointcut-ref="performance" />
          <!--pointcut="execution(* *.perform(..))" />-->
    </aop:aspect>
  </aop:config>    
</beans>

 这里<aop:before>的pointcut指向了aop:pointcut，如果已经有了像这样的

 

<aop:aspectj-autoproxy />

<bean id="audience" class="com.springinaction.springidol.Audience" />

 audience的代码如下：

 

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class Audience {
	public Audience() {}
	@Pointcut("execution(* *.perform(..))")
	public void performance() {}
	
	@Before("performance()")
	public void takeSeats() {
		System.out.println("The audience is taking their seats.");
	}
	@Before("performance()")
	public void turnOffCellPhones() {
		System.out.println("The audience is turning off their cellphones");
	}
	@AfterReturning("performance()") 
	public void applaud() {
		System.out.println("CLAP CLAP CLAP CLAP CLAP");
	}
	@AfterThrowing("performance()")
	public void demandRefund() {
		System.out.println("Boo! We want our money back!");
	}
}

也声明了@Pointcut("execution(* *.perform(..))")，能否让<aop:before>的使用这个Pointcut呢？

暂时来看，指不到，估计没有生成一个叫做performance的pointcut。运行时直接报错。