Spring AOP中有两个PointcutAdvisor
Spring AOP中有两个PointcutAdvisor
——RegexpMethodPointcutAdvisor和 NameMatchMethodPointcutAdvisor,它们都在org.springframework.aop.support包中,
都可以过滤要拦截的方法,配置方法也大致相同,其中一个最主要的区别:
RegexpMethodPointcutAdvisor:需要加上完整的类名和方法名,例如:com.xw.methodname或com.*.methodname或.*methodname。
NameMatchMethodPointcutAdvisor:只需要方法名,不用加类名:*methodname。
1.RegexpMethodPointcutAdvisor
<!-- 将拦截器包装成Advisor--> <bean id="runAdvisor" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor"> <!-- advice属性确定处理bean--> <property name="advice"> <bean class="spring.aop.LoggerAdvice"/> </property> <property name="patterns"> <list> <!--正则表达式--> <value>.*tst</value> </list> </property> </bean> <bean id="proxyBean_regexpMethod" class="org.springframework.aop.framework.ProxyFactoryBean"> <property name="proxyInterfaces" value="spring.aop.ITest"> </property> <property name="interceptorNames"> <list> <value>runAdvisor</value> </list> </property> <property name="target" ref="testproxyfactorybean"></property> </bean>
2.NameMatchMethodPointcutAdvisor
<!-- 将拦截器包装成Advisor,该对象还确定代理对怎样的方法增加处理--> <bean id="runAdvisor_Name" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor"> <!-- advice属性确定处理bean--> <property name="advice"> <!-- 此处的处理bean定义采用嵌套bean,也可引用容器的另一个bean--> <bean class="spring.aop.LoggerAdvice"/> </property> <!-- patterns确定正则表达式模式--> <property name="mappedNames"> <list> <!-- 确定正则表达式列表--> <value>tst</value> </list> </property> </bean>
注意:advisor对象必须实现一下接口
Spring支持五种类型的通知:
Before(前):org.apringframework.aop.MethodBeforeAdvice
After-returning(返回后):org.springframework.aop.AfterReturningAdvice
After-throwing(抛出后):org.springframework.aop.ThrowsAdvice
Arround(周围): org.aopaliance.intercept.MethodInterceptor
Introduction(引入):org.springframework.aop.IntroductionInterceptor