SpingAOP案例（一）注解（Annotation）方式

有些类请参照上一篇文章的其它类，这里就不列举了

//这是切面类

package com.spring.aop;

import org.aspectj.lang.ProceedingJoinPoint;
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;

@Aspect
public class TestAnnotationAspect {

	
	@Pointcut("execution(* com.spring.service.*.*(..))")
    @SuppressWarnings("unused")
	private void pointCutMethod() {

		
    }  
	
	@Before("pointCutMethod()")
	 public void doBefore() {  
	        System.out.println("前置通知");  
	    }  
	 
	 //声明后置通知  
    @AfterReturning(pointcut = "pointCutMethod()", returning = "result")  
	 public void doAfterReturning(String result) {  
	        System.out.println("后置通知");  
	        result="";
	        System.out.println("---" + result + "---");  
	    }  
	 
	 //声明例外通知  
	    @AfterThrowing(pointcut = "pointCutMethod()", throwing = "e")  
	    public void doAfterThrowing(Exception e) {  
	        System.out.println("例外通知");  
	        System.out.println(e.getMessage());  
	    }  
	    //声明环绕通知  
	    @Around("pointCutMethod()")  
	    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {  
	        System.out.println("进入方法---环绕通知");  
	        Object o = pjp.proceed();  
	        System.out.println("退出方法---环绕通知");  
	        return o;  
	    }  
}

//这是配置文件

<?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:aop="http://www.springframework.org/schema/aop"  
    xmlns:context="http://www.springframework.org/schema/context"  
    xmlns:tx="http://www.springframework.org/schema/tx"  
    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  
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd  
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">  
        
       <!--   xml方式
    <aop:config>  
        <aop:aspect id="TestAspect" ref="aspectBean">  
           
            <aop:pointcut id="businessService" expression="execution(* com.spring.service.*.*(..))" />  
            <aop:before pointcut-ref="businessService" method="doBefore"/>  
            <aop:after pointcut-ref="businessService" method="doAfter"/>  
            <aop:around pointcut-ref="businessService" method="doAround"/>  
            <aop:after-throwing pointcut-ref="businessService" method="doThrowing" throwing="ex"/>  
        </aop:aspect>  
    </aop:config>  
      
    <bean id="aspectBean" class="com.spring.aop.TestAspect" />  
    <bean id="aService" class="com.spring.service.AServiceImpl" ></bean>  
    <bean id="bService" class="com.spring.service.BServiceImpl"></bean>  
    -->
    
     <aop:aspectj-autoproxy></aop:aspectj-autoproxy>  
    <bean class="org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator" />  
  
    <bean id="aspectBean" class="com.spring.aop.TestAnnotationAspect" />  
    <bean id="aService" class="com.spring.service.AServiceImpl"></bean>  
    <bean id="bService" class="com.spring.service.BServiceImpl"></bean> 
</beans>