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解答例 - 実習課題2 - 22.Tilesタグライブラリ

(実習課題2)

19章の実習課題3で作成した Web アプリケーションを改良しなさい。

  • insert タグの beanName, name 属性を使用し、page, attribute 属性は使用しないこと。

解答例

▼ディレクトリ構成は以下の通り

.
└─WEB-INF              web.xml(22章 実習課題1と同じ),struts-config.xml,tiles-defs.xml
    ├─classes
    │  └─com
    │      └─techscore
    │          └─struts       EncodingFilter.class(2章 実習課題2と同じ),
    ├─JSP
    │  └─com
    │      └─techscore
    │          └─struts
    │              └─chapter22
    │                  └─exercise2 content1.jsp,content2.jsp,menu.jsp,useTilesInsert.jsp
    ├─lib              strutsライブラリ jarファイル
    └─tld              struts-tiles.tld,struts-html.tld



※strutsライブラリjarファイル
  struts.jar,commons-beanutils.jar,commons-collections.jar,commons-digester.jar,commons-logging.jar,jakarta-oro.jar
<!-- content1.jsp -->
<!-- TECHSCORE Java JakartaStruts 22章 実習課題2 -->
<!-- Copyright (c) 2004 Four-Dimensional Data, Inc. -->

<%@ page pageEncoding="Windows-31J" %>

<p align="center">コンテンツその1</p>
<!-- content2.jsp -->
<!-- TECHSCORE Java JakartaStruts 22章 実習課題2 -->
<!-- Copyright (c) 2004 Four-Dimensional Data, Inc. -->

<%@ page pageEncoding="Windows-31J" %>

<p align="center">コンテンツその2</p>
<!-- menu.jsp -->
<!-- TECHSCORE Java JakartaStruts 22章 実習課題2 -->
<!-- Copyright (c) 2004 Four-Dimensional Data, Inc. -->

<%@ page contentType="text/html; charset=Windows-31J"
         session="false" 
         pageEncoding="Windows-31J" %>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-html"
           prefix="html" %>

<p align="center">メニュー</p>

<p align="center">
    <html:link page="/com/techscore/struts/chapter22/exercise2/useTilesInsert1.do">
        コンテンツ1
    </html:link>
</p>
<p align="center">
    <html:link page="/com/techscore/struts/chapter22/exercise2/useTilesInsert2.do">
        コンテンツ2
    </html:link>
</p>
<p align="center">
    <html:link page="/com/techscore/struts/chapter22/exercise2/useTilesInsert3.do">
        コンテンツ2−2
    </html:link>
</p>
<!-- useTilesInsert.jsp -->
<!-- TECHSCORE Java JakartaStruts 22章 実習課題2 -->
<!-- Copyright (c) 2004 Four-Dimensional Data, Inc. -->

<%@ page contentType="text/html; charset=Windows-31J"
         session="false" 
         pageEncoding="Windows-31J" %>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-html"
           prefix="html" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-tiles"
           prefix="tiles" %>

<html:html>
<head><title>TECHSCORE Java JakartaStruts 22章 実習課題2</title></head>
<body>

<table border="1" width="100%">
    <!-- ヘッダー部分-->
    <tr><td colspan="2"><p align="center"><tiles:getAsString name="title" /></p></td></tr>
    <tr>
        <!-- メニュー部分-->
        <td width="20%"><tiles:insert name="menu" /></td>
        <!-- コンテンツ部分-->
        <td><tiles:insert name="content" /></td>
    </tr>
    <!-- フッター部分-->
    <tr><td colspan="2"><p align="center"><tiles:getAsString name="copyright" /></p></td></tr>
</table>

</body>
</html:html>

▼struts-config.xml

<?xml version="1.0" encoding="Windows-31J" ?>
<!DOCTYPE struts-config PUBLIC
  "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
  "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">

<struts-config>

    <action-mappings>

		<action path="/com/techscore/struts/chapter22/exercise2/useTilesInsert1" 
			    forward="useTiles222_1" />
			
		<action path="/com/techscore/struts/chapter22/exercise2/useTilesInsert2" 
			    forward="useTiles222_2" />
			
		<action path="/com/techscore/struts/chapter22/exercise2/useTilesInsert3" 
			    forward="useTiles222_3" />

    </action-mappings>

    <message-resources parameter="com.techscore.struts.MessageResources" />

    <plug-in className="org.apache.struts.tiles.TilesPlugin">
        <set-property property="definitions-config"
                      value="/WEB-INF/tiles-defs.xml" />
    </plug-in>

</struts-config>

▼tiles-defs.xml

<?xml version="1.0" encoding="Windows-31J" ?>
<!DOCTYPE tiles-definitions PUBLIC
  "-//Apache Software Foundation//DTD Tiles Configuration//EN"
  "http://jakarta.apache.org/struts/dtds/tiles-config_1_1.dtd">
  
<tiles-definitions>

    <definition name="useTiles222_1"
                path="/WEB-INF/JSP/com/techscore/struts/chapter22/exercise2/useTilesInsert.jsp">
        <put name="title" value="TECHSCORE Java JakartaStruts 22章 実習課題2" />
        <put name="menu" value="/WEB-INF/JSP/com/techscore/struts/chapter22/exercise2/menu.jsp" />
        <put name="content" value="/WEB-INF/JSP/com/techscore/struts/chapter22/exercise2/content1.jsp" />
        <put name="copyright" value="Copyright (c) 2004 Four-Dimensional Data, Inc." />
    </definition>

    <definition name="useTiles222_2"
                path="/WEB-INF/JSP/com/techscore/struts/chapter22/exercise2/useTilesInsert.jsp">
        <put name="title" value="title change test" />
        <put name="menu" value="/WEB-INF/JSP/com/techscore/struts/chapter22/exercise2/menu.jsp" />
        <put name="content" value="/WEB-INF/JSP/com/techscore/struts/chapter22/exercise2/content2.jsp" />
        <put name="copyright" value="copyright change test" />
    </definition>

    <definition name="useTiles222_3" extends="useTiles222_2">
        <put name="title" value="extends test" />
    </definition>

</tiles-definitions>

▼起動URLは以下の通り

WEB_ROOT/com/techscore/struts/chapter22/exercise2/useTilesInsert1.do
WEB_ROOT/com/techscore/struts/chapter22/exercise2/useTilesInsert2.do
WEB_ROOT/com/techscore/struts/chapter22/exercise2/useTilesInsert3.do

EncodingFilter.javaの参照(2章の実習課題2と同じ)

web.xmlの参照(22章の実習課題1と同じ)


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