软件测测之框架：一个使用spring框架AOP的有趣例子

            < value>com.denny_blue.springdemo.aop.BuyBook< /value>
        < /property>
        < property name="interceptorNames">
            < list>
                  < value>myBeforeAdvice< /value>
                  < value>myAfterAdvice< /value>
                  < value>myAroundAdvice< /value>
                  < value>myThrowsAdvice< /value>
            < /list>
        < /property>
        < property name="target">
            < ref bean="myBuyBookTarget"/>
        < /property>
     < /bean>
< /beans>

我们先声明所有的bean，通过

 < bean id="myBuyBookTarget" class="com.denny_blue.springdemo.aop.MyBuyBook"/>
确定将要被增强的对象??目标对象(target)，我们可以很容易地替换这个目标对象，只要它实现业务接口。代理的接口通过:

< property name="proxyInterfaces">
            < value>com.denny_blue.springdemo.aop.BuyBook< /value>
< /property>
设定，然后是要用到一系列增强，注意，顺序是很有影响的！你可以尝试着改变顺序看看结果：）

< property name="interceptorNames">
            < list>
                  < value>myBeforeAdvice< /value>
                  < value>myAfterAdvice< /value>
                  < value>myAroundAdvice< /value>
                  < value>myThrowsAdvice< /value>
            < /list>
< /property>

一切准备好了，我们来测试吧，GO GO GO

package test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;

import com.denny_blue.springdemo.aop.BuyBook;

public class TestAdvice {
 public static void main(String args[]){
  ApplicationContext ctx=new FileSystemXmlApplicationContext("/src/beans.xml"); 

  //我的beans.xml放在项目下的src目录，eclipse环境下，请自己调整
  BuyBook buybook=(BuyBook)ctx.getBean("buyBook");
  buybook.buyBook("jordan","< 深入浅出hibernate>");
  // buybook.buyBook("dennis","< spring in action>");    //去掉注释即可观察异常增强
 // buybook.buyBook("jordan","< 深入浅出hibernate>");   //去掉注释即可观察环绕增强

 }
}

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