AOP学习

1.需要在应用程序的classpath中引入两个AspectJ库：aspectjweaver.jar    和 aspectjrt.jar。

 

2.servlet.xml

<?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:jee="http://www.springframework.org/schema/jee"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
         //自动扫描包
	<context:component-scan base-package="test.web.controller" />
	
</beans>

 3.java

	@AfterReturning("execution(* test.service.*.save(..))")
	public void afterSaveAdviceDo(JoinPoint joinPoint) {
		try {
			Log entity = new Log();

			String content = "";
                       //获取save的实体；
			Object object = joinPoint.getArgs()[0];
                         
			content = _buildContentByReflex(object, Constants.SYS_ACTION_SAVE);
			Administrator admin = AspectHelper.getCurrentAdministrator(object);

			SystemInfo info = new SystemInfo();
			info.setCreateDate(new Date());
			info.setCreateUser(admin);
			info.setLastModifyDate(new Date());
			info.setLastModifyUser(admin);

			entity.setSystemInfo(info);
			entity.setContent(content);

			logService.write(entity);
		} catch (Exception e) {
			if (log.isErrorEnabled())
				log.error(e, e);
		}
	}