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要用到这个接口 org.aspectj.lang.JoinPoint。这里有文档http://www.eclipse.org/aspectj/doc/released/runtime-api/
AspectJ使用org.aspectj.lang.JoinPoint接口表示目标类连接点对象，主要方法：
java.lang.Object[] getArgs()：获取连接点方法运行时的入参列表；
Signature getSignature() ：获取连接点的方法签名对象；
java.lang.Object getTarget() ：获取连接点所在的目标对象；
java.lang.Object getThis() ：获取代理对象本身；
代码：
package service; public interface Service { public void saySomething(int num,String str); public void doSomething(String name); }
package service; import org.springframework.stereotype.Component; @Component("serviceImpl") public class ServiceImpl implements Service { @Override public void saySomething(int num, String str) { } @Override public void doSomething(String name) { } }
切面：
package advice; import java.util.Calendar; import org.aspectj.lang.JoinPoint; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; import org.springframework.stereotype.Component; @Component @Aspect public class Advice{ @Before("init()") public void log(JoinPoint jp){ System.out.println(jp.getKind()); System.out.println("开始记录日志："); String className = jp.getThis().toString(); String methodName = jp.getSignature().getName(); System.out.println(Calendar.getInstance().getTime()); System.out.println("调用" + className + "类的方法：" + methodName); Object[] obj = jp.getArgs(); if(obj.length <= 0){ System.out.println("没有参数"); }else{ for(int i = 0; i < obj.length ; i++){ System.out.println("参数" + (i+1) + ":" + obj[i]); } } } @Pointcut("execution(* service.*.*(..))") public void init(){ } }
测试：
public class Test { public static void main(String[] args) { // TODO Auto-generated method stub ApplicationContext ac = new ClassPathXmlApplicationContext("service/bean.xml"); Service ser = (Service) ac.getBean("serviceImpl"); ser.saySomething(123,"test"); ser.doSomething("test"); }
xml：
<context:annotation-config></context:annotation-config> <context:component-scan base-package="service,advice"></context:component-scan> <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
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原文地址：http://www.cnblogs.com/yeming/p/5462158.html
