Struts2.1 OGNL 表达式.doc

Kan %@?page?language=java?import=java.util.*?pageEncoding=UTF-8% ?? %@page?import=com.rao.struts2.bean.Sex% ?? %@?taglib?prefix=s?uri=/struts-tags% ?? !DOCTYPE?HTML?PUBLIC?-//W3C//DTD?HTML?4.01?Transitional//EN ?? html ?? ????head ?? ????????titleMy?JSP?OGNL1.jsp?starting?page/title ?? ?? ????????meta?http-equiv=pragma?content=no-cache ?? ????????meta?http-equiv=cache-control?content=no-cache ?? ????????meta?http-equiv=expires?content=0 ?? ????????meta?http-equiv=keywords?content=keyword1,keyword2,keyword3 ?? ????????meta?http-equiv=description?content=This?is?my?page ?? ????????!-- ?? ????link?rel=stylesheet?type=text/css?href=styles.css ?? ????-- ?? ?? ????/head ?? ?? ????body ?? ????????% ?? ????????????request.setAttribute(req,?request?scope); ?? ????????????request.getSession().setAttribute(sess,?session?scope); ?? ????????????request.getSession().getServletContext().setAttribute(app, ?? ????????????????????aplication?scope); ?? ????????% ?? ????1.通过ognl表达式获取?属性范围中的值 ?? ????????br ?? ????????s:property?value=#request.req?/ ?? ????????br?/ ?? ????????s:property?value=#session.sess?/ ?? ????????br?/ ?? ????????s:property?value=#application.app?/ ?? ????????br?/ ?? ????????hr ?? ????2.通过SPAN?style=BACKGROUND-COLOR:?#fafafaognl表达式创建list?集合?，并且遍历出集合中的值 ?? ????????br ?? ????????s:set?name=list?value={eeeee,ddddd,ccccc,bbbbb,aaaaa}/s:set ?? ????????s:iterator?value=#list?var=o ?? ????????????!--?${o?}br/?-- ?? ????????????s:property?/ ?? ????????????br?/ ?? ????????/s:iterator ?? ????????br?/ ?? ????????hr ?? ????3.通过ognl表达式创建Map?集合?，并且遍历出集合中的值 ?? ????????br ?? ????????s:set?name=map?? ????????????value=#{1:eeeee,2:ddddd,3:ccccc,4:bbbbb,5:aaaaa}/s:set ?? ????????s:iterator?value=#map?var=o ?? ????????????!--??????${o.key?}-${o.value?}br/???-- ?? ????????????!--?s:property?value=#o.key/-s:property?value=#o.value/br/???-- ?? ????????????s:property?value=key?/-s:property?value=value?/ ?? ????????????br?/ ?? ????????/s:iterator ?? ????????br?/ ?? ????????hr ?? ????4.通过ogn