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 stub		System.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;@Aspectpublic 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：

@Test	public 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