Aspectj后置返回通知

接口：

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

　　

接口實現

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/>?啟動對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;?否則不執行

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//定義切入點@Pointcut(value="execution(* chapter1..*.sayAfterReturning(java.lang.String) and args(param))", argNames="param")public void returnPointcut(String param) {}public void afterReturningAdvice2(Object retVal){}}

　　

測試程序：

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

　　

結果：

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

轉載于:https://www.cnblogs.com/achengmu/p/8574911.html

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