使用注解配置spring aop

     

    public interface PersonService {
	public void save(String name);
	public void update(String name, Integer id);
	public String getPersonName(Integer id);
}

   

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
/**
 * 切面
 *
 */

//@Aspect用来定义切面
@Aspect
public class MyInterceptor {
	//* 代表返回值任意 
	 //cn.itcast.service.impl.PersonServiceBean.*(..)
	//表示cn.itcast.service.impl.PersonServiceBean类下的任意方法
	//参数任意
	@Pointcut("execution (* cn.itcast.service.impl.PersonServiceBean.*(..))")
	private void anyMethod() {}//声明一个切入点
	
	@Before("anyMethod() && args(name)")
	public void doAccessCheck(String name) {
		System.out.println("前置通知:"+ name);
	}
	@AfterReturning(pointcut="anyMethod()",returning="result")
	public void doAfterReturning(String result) {
		System.out.println("后置通知:"+ result);
	}
	@After("anyMethod()")
	public void doAfter() {
		System.out.println("最终通知");
	}
	@AfterThrowing(pointcut="anyMethod()",throwing="e")
	public void doAfterThrowing(Exception e) {
		System.out.println("例外通知:"+ e);
	}
	
	@Around("anyMethod()")
	public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable {
		//if(){//判断用户是否在权限
		System.out.println("进入方法");
		Object result = pjp.proceed();
		System.out.println("退出方法");
		//}
		return result;
	}
	
}

    

import cn.itcast.service.PersonService;

public class PersonServiceBean implements PersonService {

	public String getPersonName(Integer id) {
		System.out.println("我是getPersonName()方法");
		return "xxx";
	}

	public void save(String name) {
		throw new RuntimeException("我爱例外");
		//System.out.println("我是save()方法");
	}

	public void update(String name, Integer id) {
		System.out.println("我是update()方法");
	}

}

  

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" 
       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/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
        <aop:aspectj-autoproxy/> 
        <bean id="myInterceptor" class="cn.itcast.service.MyInterceptor"/>
        <bean id="personService" class="cn.itcast.service.impl.PersonServiceBean"></bean>
</beans>