AOP 方法参数传递总结

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;  
   }  
} 

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);  
   }  
} 

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> 

<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 ===

这是我从java eye 提问模块中发现的。
[size=xx-small]回答者是：whistler [/size]