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Struts2整合SiteMesh

發布時間：2024/4/17 编程问答 41 豆豆

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http://takeme.iteye.com/blog/1716488

1.導入Struts2的jar 和 sitemesh.jar 和 Struts2-sitemesh-plugin.jar?
commons-fileupload-1.2.2.jar?
commons-io-2.0.1.jar?
commons-lang3-3.1.jar?
commons-logging-1.1.1.jar?
freemarker-2.3.19.jar?
javassist-3.11.0.GA.jar?
ognl-3.0.5.jar?
sitemesh-2.4.2.jar?
struts2-core-2.3.4.jar?
struts2-sitemesh-plugin-2.3.4.1.jar?
xwork-core-2.3.4.jar?

2.在web.xml中配置 Struts sitemesh攔截器注意有一定的順序?

Xml代碼??

<?xml?version="1.0"?encoding="UTF-8"?>??

<web-app?version="2.5"???

????xmlns="http://java.sun.com/xml/ns/javaee"???

????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"???

????xsi:schemaLocation="http://java.sun.com/xml/ns/javaee???

????http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">??

??????

<filter>??

????<filter-name>struts-cleanup</filter-name>??

????<filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>??

</filter>??

<filter>??

????<filter-name>sitemesh</filter-name>??

????<filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class>??

</filter>??

??????

<filter>??

????<filter-name>struts2</filter-name>??

????<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>??

</filter>??

<filter-mapping>??

????<filter-name>struts-cleanup</filter-name>??

????<url-pattern>/*</url-pattern>??

</filter-mapping>??

<filter-mapping>??

????<filter-name>sitemesh</filter-name>??

????<url-pattern>/*</url-pattern>??

</filter-mapping>??

<filter-mapping>??

????<filter-name>struts2</filter-name>??

????<url-pattern>/*</url-pattern>??

</filter-mapping>??

??<welcome-file-list>??

????<welcome-file>index.jsp</welcome-file>??

??</welcome-file-list>??

????

</web-app>??

3.在webroot下的descorators目錄下建立 myDecorator.jsp 裝飾器頁面?
Html代碼??

<%@?page?language="java"?import="java.util.*"?pageEncoding="UTF-8"%>??

<%@?taglib?prefix="decorator"?uri="http://www.opensymphony.com/sitemesh/decorator"?%>??

<%@?taglib?prefix="page"?uri="http://www.opensymphony.com/sitemesh/page"?%>??

<%??

String?path?=?request.getContextPath();??

String?basePath?=?request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";??

%>??

<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN">??

<html>??

??<head>??

????<base?href="<%=basePath%>">??

??????

????<title><decorator:title?default="裝飾器頁面"/></title>??

??????

????<decorator:head/>??

??</head>??

????

??<body>??

????<div>top</div>??

????<hr>??

????<div>??

????????<decorator:body/>??

????</div>??

????<hr>??

????<div>bottom</div>??

??</body>??

</html>??

4.在web-inf 下建立裝飾器描述文件 decorators.xml?
Xml代碼??

<?xml?version="1.0"?encoding="UTF-8"?>??

<decoratos?defaultdir="/decorators">??

????<decorator?name="myDecorator"?page="myDecorator.jsp">??

????????<pattern>/songs/*</pattern>??

????</decorator>??

</decoratos>??

5.建立實體類 Song.java?
Java代碼??

private?String?songName;??

????private?String?singer;??

????private?String?songTime;??

//get?set??

6.action?
Java代碼??

package?com.sh.action;??

import?java.util.ArrayList;??

import?java.util.List;??

import?com.opensymphony.xwork2.ActionSupport;??

import?com.sh.entity.Song;??

public?class?AllSongs?extends?ActionSupport?{??

????private?List<Song>?allSongs=new?ArrayList<Song>();??

????public?List<Song>?getAllSongs()?{??

????????return?allSongs;??

????}??

????public?void?setAllSongs(List<Song>?allSongs)?{??

????????this.allSongs?=?allSongs;??

????}??

????@Override??

????public?String?execute()?throws?Exception?{??

????????//?TODO?Auto-generated?method?stub??

????????Song?song1=new?Song();??

????????song1.setSongName("浪子心聲");??

????????song1.setSinger("劉德華");??

????????song1.setSongTime("3:41");??

??????????

????????Song?song2=new?Song();??

????????song2.setSongName("中國話");??

????????song2.setSinger("SHE");??

????????song2.setSongTime("4:18");??

??????????

????????Song?song3=new?Song();??

????????song3.setSongName("丁香花");??

????????song3.setSinger("唐磊");??

????????song3.setSongTime("4:05");??

??????????

????????allSongs.add(song1);??

????????allSongs.add(song2);??

????????allSongs.add(song3);??

??????????

????????return?SUCCESS;??

????}?????

}??

7.配置? struts.xml?
Xml代碼??

<?xml?version="1.0"?encoding="UTF-8"??>??

<!DOCTYPE?struts?PUBLIC??

????"-//Apache?Software?Foundation//DTD?Struts?Configuration?2.3//EN"??

????"http://struts.apache.org/dtds/struts-2.3.dtd">??

<struts>???

???<constant?name="struts.i18n.encoding"?value="utf-8"/>??

???<package?name="default"?extends="struts-default"?namespace="/songs">??

????????<action?name="allSongs"?class="com.sh.action.AllSongs">??

????????????<result>/allSongs.jsp</result>??

????????</action>??

???</package>??

</struts>??

8.allSongs.jsp?
Html代碼??

<%@?page?language="java"?import="java.util.*"?pageEncoding="UTF-8"%>??

<%@?taglib?uri="/struts-tags"?prefix="s"?%>??

<%??

String?path?=?request.getContextPath();??

String?basePath?=?request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";??

%>??

<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN">??

<html>??

??<head>??

????<base?href="<%=basePath%>">??

??????

????<title>Struts2AndStieMesh</title>??

??</head>??

????

??<body>??

????????<center>??

????????????<br/>??

????????????<div>??

????????????????<ul?style="list-style:?none">??

????????????????????<li?style="float:?left;?width:?100px;">歌名</li>??

????????????????????<li?style="float:?left;?width:?100px;">歌手</li>??

????????????????????<li?style="float:?left;?width:?100px;">時長</li>??

????????????????????<div?style="clear:?both;"></div>??

????????????????</ul>??

????????????????<s:iterator?value="allSongs">??

????????????????????<ul?style="list-style:none">??

????????????????????????<li?style="float:?left;?width:?100px;"><s:property?value="songName"/></li>??

????????????????????????<li?style="float:?left;?width:?100px;"><s:property?value="singer"/></li>??

????????????????????????<li?style="float:?left;?width:?100px;"><s:property?value="songTime"/></li>??

????????????????????????<div?style="clear:?both;"></div>??

????????????????????</ul>??

????????????????</s:iterator>??

????????????</div>??

????????????<br/>??

????????</center>??

??</body>??

</html>??

9.訪問localhost:8080/Struts2AndSiteMesh/songs/allSongs.action 可以看到頁面中加入?
? top 和bottom?
? 如果將 decorations.xml中的pattern 改成 <pattern>/singer/*</pattern>?
? 那上面的訪問的頁面就沒有經過裝飾器頁面修飾?

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