spring切面：注解：环绕增强

package aop;

import java.util.Arrays;

import org.apache.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
@Aspect
public class AroundLogger2 {
private static final Logger log = Logger.getLogger(AroundLogger.class);

@Around("execution(* biz.impl.*.*(..))")
public Object around(ProceedingJoinPoint jp) {
try {
System.out.println("进入前置增强###");
log.info("调用的方法：" + jp.getSignature().getName() + "，传递参数："
+ Arrays.toString(jp.getArgs()));

Object result = jp.proceed();
System.out.println("进入后置增强###");
log.info("调用的方法：" + jp.getSignature().getName() + "，传递参数："
+ Arrays.toString(jp.getArgs()) + "，返回参数：" + result);
return result;
} catch (Throwable e) {
System.out.println("出现异常");
log.info("调用的方法：" + jp.getSignature().getName() + "，传递参数："
+ Arrays.toString(jp.getArgs()) + "，异常信息：" + e);
e.printStackTrace();
}
return null;
}
}

<?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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd"> <!--  将前置增强类配成bean,交给spring管理
<bean id="loggerBefore" class="aop.LoggerBefore"></bean>
将后置增强类配成bean,交给spring管理
<bean id="afterReturning" class="aop.AfterReturning"></bean>
配置切面(将增强类关联给某个条件范围内的方法)
<bean id="errorLogger" class="aop.ErrorLogger"></bean>  -->
<!--   <bean id="aroundLogger" class="aop.AroundLogger"></bean> -->
<!-- <bean class="aop.UserLogger"></bean>  -->
<bean class="aop.AroundLogger2"></bean>
<aop:aspectj-autoproxy></aop:aspectj-autoproxy>
<!-- <aop:config>
配置切入点pointcut
<aop:pointcut expression="execution(* biz.impl.*.*(..))" id="myPoint"/>
<aop:advisor advice-ref="loggerBefore" pointcut-ref="myPoint"/>
<aop:advisor advice-ref="afterReturning" pointcut-ref="myPoint"/>
<aop:advisor advice-ref="errorLogger" pointcut-ref="myPoint"/>
<aop:advisor advice-ref="aroundLogger" pointcut-ref="myPoint"/>
</aop:config> -->
<bean id="userBiz" class="biz.impl.UserBizImpl" p:userDao-ref="userDao">
<!--  <property name="userDao" ref="userDao2"></property> -->
</bean>
<bean id="userDao" class="dao.impl.UserDaoImpl" />
<bean id="userDao2" class="dao.impl.UserDaoImpl2" />
</bean>
</beans>

package dao.impl;

import javax.management.RuntimeErrorException;

import dao.UserDao;
import entity.User;

public class UserDaoImpl implements UserDao {

@Override
public User findUser() {
System.out.println("===========Dao层查询User 1==============");
User u=new User("Tom",22);
throw new RuntimeException("出现异常");
//return u;
}

}

package test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import entity.User;

import biz.UserBiz;
import biz.impl.UserBizImpl;

import ioc.HelloWorld;

public class TestMain {

/**
* @param args
*/
public static void main(String[] args) {

//加载spring容器,解析配置文件
ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");
/*HelloWorld helloWorld=(HelloWorld) ac.getBean("helloWorld");
System.out.println("你好:"+helloWorld.getName()+","+helloWorld.getSet().size()+","+helloWorld.getMap().get("u1"));*/
UserBiz userBiz=(UserBiz) ac.getBean("userBiz");
User u= userBiz.getUser(101);
System.out.println(u.getUname()+","+u.getAge());
}

}