spring3: Aspectj后置返回通知

Aspectj后置返回通知

接口：

package chapter1.server;public interface IHelloService2 {public int sayAfterReturning(String param);
}

　　

接口实现

package chapter1.service.impl;import chapter1.server.IHelloService2;public class HelloService2 implements IHelloService2 {public int sayAfterReturning(String param) {// TODO Auto-generated method stubSystem.out.println("============ say after returning:" + param);return 1;}}

　　

配置：

一定要加：<aop:aspectj-autoproxy/> 启动对Aspectj的支持

<aop:aspectj-autoproxy/>
<bean id="helloService" class="chapter1.service.impl.HelloService2" />
<bean id="aspect" class="chapter1.aop.HelloAspect2"/>

　　

AOP切面：

一定要引入：org.aspectj.lang.annotation.Aspect; 否则不执行

package chapter1.aop;import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.annotation.AfterReturning;@Aspect
public class HelloAspect2 {//方法一//通知@AfterReturning(	//value="execution(* chapter1..*.sayAdvisorBefore(java.lang.String)) and args(param)",value="execution(* chapter1..*.sayAfterReturning(..))",			argNames="retVal", returning="retVal")public void afterReturningAdvice(Object retVal){System.out.println("================= return after advice : " + retVal);}//方法二//定义切入点@Pointcut(value="execution(* chapter1..*.sayAfterReturning(java.lang.String) and args(param))", argNames="param")public void returnPointcut(String param) {}public void afterReturningAdvice2(Object retVal){}}

　　

测试程序：

@Testpublic void testAspectAfterReturning(){ApplicationContext context = new ClassPathXmlApplicationContext("chapter1/aspectj2.xml");IHelloService2 hello = context.getBean("helloService", IHelloService2.class);hello.sayAfterReturning("hahah");}

　　

结果：

============ say after returning:hahah
================= return after advice : 1