AOP 传递参数

AOPJavaSpringBeanXML

目标bean，showValues(String value)方法执行作为连接点
Java代码
public class InitializingBeanNameClass
public String showValues(String value)
{
System.out.println("目标方法执行：");
System.out.println("传入参数：String arg: " + value);
return value;
}
}


切面，bindMethodArgTest(String argvalue)方法作为通知
Java代码
public class BindArgs {
public void bindMethodArgTest(String argvalue) {
System.out.println("BindMethodArgTest通知，通过args(argvalue,..)绑定showValues(java.lang.String,..)第一个参数......");
System.out.println("参数:" + argvalue);
}
}


Java代码
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

<aop:aspectj-autoproxy/>

<aop:config>
<aop:aspect id="bindArgs" ref="bindArgsAspectBean">
<aop:before method="bindMethodArgTest" arg-names="argvalue" pointcut="execution( * com.spring.ch4.*.showValues(..)) and args(argvalue)" />
</aop:aspect>
</aop:config>

<bean id="nameBean" class="com.spring.ch4.InitializingBeanNameClass">
<property name="firstName" value="shen"/>
</bean>

<bean id="bindArgsAspectBean" class="com.spring.ch4.pointcut.xml.BindArgs" />

</beans>


public static void main(String[] args) {

ApplicationContext context = new ClassPathXmlApplicationContext("com/spring/ch4/pointcut/xml/pointcut-tests.xml");

InitializingBeanNameClass nameBean = (InitializingBeanNameClass) context.getBean("nameBean");

System.out.println("=== GOING TO testBeforeAdvice ===");

nameBean.showValues("方法参数绑定");

System.out.println("=== FINISHED testBeforeAdvice ===");
}

执行结果

=== GOING TO testBeforeAdvice ===
BindMethodArgTest通知，通过args(argvalue,..)绑定showValues(java.lang.String,..)第一个参数......
参数:方法参数绑定

目标方法执行：
传入参数：String arg: 方法参数绑定
=== FINISHED testBeforeAdvice ===