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解答例 - 実習課題１ - ７．HTMLタグライブラリ３
（実習課題１）
以下のWebアプリケーションを、Strutsを用いて作成しなさい。
- selectタグとoption/options/optionsCollectionタグを用いて、同じ内容の選択肢を表示する3つのフォームを作成する事。
解答例
▼ディレクトリ構成は以下の通り
.
├─com
│ └─techscore
│ └─struts
│ └─chapter7
│ └─exercise1 useSelectTag.jsp
└─WEB-INF web.xml,struts-config.xml
├─classes
│ └─com
│ └─techscore
│ └─struts EncodingFilter.class（2章 実習課題2と同じ）,
│ └─chapter7
│ └─exercise1 SelectTagForm.class,Days.class
├─lib strutsライブラリjarファイル
└─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
/**
* Days.java
* TECHSCORE Java JakartaStruts 7章 実習課題1
*
* Copyright (c) 2004 Four-Dimensional Data, Inc.
*
*/
package com.techscore.struts.chapter7.exercise1;
public class Days {
public String[] getValues(){
String[] labels={"1", "2", "3", "4", "5", "6", "7"};
return labels;
}
public String[] getLabels(){
String[] values={"日曜日", "月曜日", "火曜日", "水曜日", "木曜日", "金曜日", "土曜日"};
return values;
}
}
/**
* SelectTagForm.java
* TECHSCORE Java JakartaStruts 7章 実習課題1
*
* Copyright (c) 2004 Four-Dimensional Data, Inc.
*
*/
package com.techscore.struts.chapter7.exercise1;
import org.apache.struts.action.ActionForm;
import org.apache.struts.util.LabelValueBean;
import java.util.List;
import java.util.LinkedList;
public class SelectTagForm extends ActionForm{
private String[] daySelect1;
private String[] daySelect2;
private String[] daySelect3;
private List days2 = new LinkedList();
public SelectTagForm() {
days2.add(new LabelValueBean("日曜日","1"));
days2.add(new LabelValueBean("月曜日","2"));
days2.add(new LabelValueBean("火曜日","3"));
days2.add(new LabelValueBean("水曜日","4"));
days2.add(new LabelValueBean("木曜日","5"));
days2.add(new LabelValueBean("金曜日","6"));
days2.add(new LabelValueBean("土曜日","7"));
}
public void setDaySelect1(String[] daySelect1){
this.daySelect1 = daySelect1;
}
public String[] getDaySelect1(){
return daySelect1;
}
public void setDaySelect2(String[] daySelect2){
this.daySelect2 = daySelect2;
}
public String[] getDaySelect2(){
return daySelect2;
}
public void setDaySelect3(String[] daySelect3){
this.daySelect3 = daySelect3;
}
public String[] getDaySelect3(){
return daySelect3;
}
public void setDays2(List days2) {
this.days2 = days2;
}
public List getDays2(){
return days2;
}
}
<!-- useSelectTag.jsp -->
<!-- TECHSCORE Java JakartaStruts 7章 実習課題1 -->
<!-- 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" %>
<html>
<head><title>TECHSCORE Java JakartaStruts 7章 実習課題1</title></head>
<body>
<h3>Optionタグで表示</h3>
<p>都合のよい曜日を選択してください。</p>
<html:form action="/com/techscore/struts/chapter7/exercise1/SelectTag.do" method="post" >
<html:select property="daySelect1" size="7">
<html:option value="1">日曜日</html:option>
<html:option value="2">月曜日</html:option>
<html:option value="3">火曜日</html:option>
<html:option value="4">水曜日</html:option>
<html:option value="5">木曜日</html:option>
<html:option value="6">金曜日</html:option>
<html:option value="7">土曜日</html:option>
</html:select>
</html:form>
<h3>Optionsタグで表示</h3>
<p>都合のよい曜日を選択してください。</p>
<% pageContext.setAttribute("days",new com.techscore.struts.chapter7.exercise1.Days()); %>
<html:form action="/com/techscore/struts/chapter7/exercise1/SelectTag.do" method="post" >
<html:select property="daySelect2" size="7">
<html:options name="days" property="values"
labelName="days" labelProperty="labels" />
</html:select>
</html:form>
<h3>OptionsSelectionタグで表示</h3>
<p>都合のよい曜日を選択してください。</p>
<html:form action="/com/techscore/struts/chapter7/exercise1/SelectTag.do" method="post" >
<html:select property="daySelect3" size="7">
<html:optionsCollection property="days2" value="value" label="label" />
</html:select>
</html:form>
</body>
</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>
<form-beans>
<form-bean name="selectTagForm"
type="com.techscore.struts.chapter7.exercise1.SelectTagForm" />
</form-beans>
<action-mappings>
<action path="/com/techscore/struts/chapter7/exercise1/SelectTag"
type="com.techscore.struts.chapter7.exercise1.SelectTagAction"
name="selectTagForm"
scope="request">
</action>
</action-mappings>
</struts-config>
<?xml version="1.0" encoding="Windows-31J" ?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">
<web-app>
<filter>
<filter-name>Encoding</filter-name>
<filter-class>com.techscore.struts.EncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>Windows-31J</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>Action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>6</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<taglib>
<taglib-uri>http://jakarta.apache.org/struts/tags-html</taglib-uri>
<taglib-location>/WEB-INF/tld/struts-html.tld</taglib-location>
</taglib>
</web-app>
▼起動URLは以下の通り
WEB_ROOT/com/techscore/struts/chapter7/exercise1/useSelectTag.jsp
EncodingFilter.javaの参照（2章の実習課題2と同じ）
