日期:2014-05-17 浏览次数:20950 次
1 使用Annotation方式
spring依赖库
* SPRING_HOME/dist/spring.jar
* SPRING_HOME/lib/jakarta-commons/commons-logging.jar
* SPRING_HOME/lib/log4j/log4j-1.2.14.jar
* SPRING_HOME/lib/aspectj/*.jar
使用Aspect定义切入点
package com.travelsky.aop.aspect; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.AfterReturning; @Aspect public class serviceAspect { @Pointcut("execution(* com.travelsky.service..*.*(..))") public void doBeforeService() { } @Pointcut("execution(* com.travelsky.service..*.*(..))") public void doAfterService() { } }
?
定义advice
package com.travelsky.aop.advice; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; @Aspect public class serviceAdvice{ @Before("com.travelsky.aop.aspect.serviceAspect.doBeforeService()") public void doAccessCheck() { // ... System.out.println("Aop: do before service."); } @AfterReturning("com.travelsky.aop.aspect.serviceAspect.doAfterService()") public void logInfo() { // ... System.out.println("Aop: do after service"); } }
?
在Spring配置文件applicationContext.xml中配置
<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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-autowire="byName" default-lazy-init="true"> <aop:aspectj-autoproxy /> <bean class="com.travelsky.aop.advice.serviceAdvice" /> </bean>
?
2 配置文件方式
spring依赖库
* SPRING_HOME/dist/spring.jar
* SPRING_HOME/lib/jakarta-commons/commons-logging.jar
* SPRING_HOME/lib/log4j/log4j-1.2.14.jar
* SPRING_HOME/lib/aspectj/*.jar
?
在applicationContext.xml中配置
<aop:config> <!-- 被切入的切面类--> <aop:aspect id="security" ref="securityHandler"> <!-- 要切入的点(针对哪个切入。表达式方法声明匹配被切入的类及其方法) --> <aop:pointcut id="allAddMethod" expression="execution(* com.travelsky.security.UserManagerImpl.add*(..))"/> <!-- 声明切面类的要切入方法及具体位置 --> <aop:before method="checkSecurity" pointcut-ref="allAddMethod"/> </aop:aspect> </aop:config>
?
3 给出一个生产中实际使用的AspectJ管理AOP事物的配置文件(配置方式实现)
<?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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-autowire="byName" default-lazy-init="true"> <!-- 属性文件读入 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath*:config.properties</value> </list> </property> </bean> <!-- 支持 @Transactional 标记 --> <tx:annotation-driven /> <!-- 支持 @AspectJ 标记--> <aop:aspectj-auto