Spring AOP（一）获取操作参数request、session、application
springAOP的用途极其广泛，但在struts2之前request等获取是个问题，这里简单介绍一下我的方法：
struts1中两种方法：
1.通过threadlocal
先写java类

package com.util; import java.io.Serializable; import javax.servlet.http.HttpServletRequest; public class ThreadTest implements Serializable{       private static ThreadLocal<Object> threadLocal = new ThreadLocal<Object>(); public HttpServletRequest getContext(){       return (HttpServletRequest)threadLocal.get(); } public void setContext(HttpServletRequest request){       threadLocal.set(request); } public void cleanContext(){       threadLocal.set(null); } } 

配置为filter

<filter><filter-name>test</filter-name><filter-class>com.util.ThreadTest</filter-class></filter><filter-mapping><filter-name>test</filter-name><url-pattern>/*</url-pattern></filter-mapping>

最后在aop方法中只要包含HttpServletRequest request, HttpServletResponse response参数就可以了

方法二：

public Object saveLog(ProceedingJoinPoint joinPoint) throws Throwable {Object retVal = null;try {if(logDao == null){String[] locations={"applicationContext-beans.xml","applicationContext-actions.xml", "applicationContext-common.xml"};ApplicationContext ctx = new ClassPathXmlApplicationContext(locations);logDao = (LogDao) ctx.getBean("logDao");}//logDetail(jointPoint,"：startTime：");retVal = joinPoint.proceed();Object[] args = joinPoint.getArgs();HttpServletRequest request = null;ActionMapping mapping = null;                        //通过分析aop监听参数分析出request等信息for (int i = 0; i < args.length; i++) {if (args[i] instanceof HttpServletRequest) {request = (HttpServletRequest) args[i];}if (args[i] instanceof ActionMapping) {mapping = (ActionMapping) args[i];}}Person person = new Person();if (request != null) {person = (Person) request.getSession().getAttribute("login");}String method = request.getParameter("method");System.out.println("------------------------------------"+SystemContext.getOffset());//登录日志if (method.equals("login")) {}//查看if (method.equals("showAll")) {}}//logDetail(joinPoint,"：endTime：");} catch (Exception ee) {System.out.println("出错：" + ee.toString());}return retVal;}

在struts2中request等作为系统参数，已经可以直接调用了