1）第一种配置方法：aop:advisor: advice-ref说明切别人的程序是什么,advice的英文翻译是“通知”，意思是主业务程序执行到某个方法之前之后发出的通知。pointcut-ref说明被切的业务主程序是什么。 例 2.1.1 <?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd" > <context:component-scan base-package="com" /> <context:component-scan base-package="service" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/" /> <property name="suffix" value=".jsp" /> </bean> <bean id="loginService" class="service.LoginServiceImpl" > </bean> <bean id="myTransactionManager" class="aop.AOPMyTransactionManagerMark_To_Win" /> <!-- 配置切面 这种写法也正确"execution(* service.*.*(..))"--> <aop:config> <aop:pointcut id="myPointcut" expression="execution(* service.LoginServiceImpl.*(..))" /> <aop:advisor advice-ref="myTransactionManager" pointcut-ref="myPointcut"/> </aop:config> </beans> <%@ page contentType="text/html; charset=GBK" %> <html> <head> <title>Spring 3.0</title> </head> <body> <a href="helloa.do">点击跳转，你好，马克-to-win</a> </body> </html> package com; import javax.annotation.Resource; import javax.servlet.ServletContext; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.support.RequestContextUtils; import service.interfac.ILoginService; @Controller public class HelloWorldController { private ILoginService loginServic; @RequestMapping("/helloa") public ModelAndView helloWorld(HttpServletRequest request, HttpServletResponse response, HttpSession sesssion) { ServletContext sc=RequestContextUtils.getWebApplicationContext(request).getServletContext(); WebApplicationContext wac=WebApplicationContextUtils.getRequiredWebApplicationContext(sc); ILoginService loginServic=(ILoginService)wac.getBean("loginService"); loginServic.login(); System.out.println("after loginServic.login()"); /*ModelAndView就是在view和model中传数据*/ return new ModelAndView("/helloq", "message", "你好"); } } package service; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.stereotype.Service; import com.NiutDAO; import service.interfac.ILoginService; public class LoginServiceImpl implements ILoginService { public void login() { System.out.println("LoginServiceImpl"); } } package aop; import java.lang.reflect.Method; import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation; public class AOPMyTransactionManagerMark_To_Win implements MethodInterceptor { public Object invoke(MethodInvocation arg0) throws Throwable { System.out.println("模拟start transaction"); arg0.proceed(); System.out.println("模拟commit transaction"); return null; } } helloq.jsp <%@ page contentType="text/html; charset=GBK" %> <html> <body> ${message} </body> </html> 输出结果： 模拟start transaction LoginServiceImpl 模拟commit transaction after loginServic.login() 补充语法：execution(modifiers-pattern? ret-type-pattern declaring-type-pattern? name-pattern(param-pattern)throws-pattern?) returning type pattern,name pattern, and parameters pattern是必须的. ret-type-pattern:可以为*表示任何返回值,全路径的类名等. name-pattern:指定方法名,*代表所有,set*,代表以set开头的所有方法. parameters pattern:指定方法参数(声明的类型),(..)代表所有参数,(*)代表一个参数,(*,String)代表第一个参数为任何值,第二个为String类型. 例如： <aop:pointcut id="myPointcut" expression="execution(* service.LoginServiceImpl.*(..))" />
更多请见下节：http://www.mark-to-win.com/tutorial/frame_Spring_usageaopadvisor.html
