?? bean-size.jsp
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-bean-el.tld" prefix="bean-el" %>
<%@ taglib uri="/WEB-INF/c.tld" prefix="c" %>
<html>
<head>
<title>Test struts bean-el Size Tag</title>
</head>
<body bgcolor="white">
<%
java.util.ArrayList data = new java.util.ArrayList();
data.add("First");
data.add("Second");
data.add("Third");
data.add("Fourth");
data.add("Fifth");
pageContext.setAttribute("list", data, PageContext.PAGE_SCOPE);
java.util.HashMap temp = new java.util.HashMap();
temp.put("First", "0");
temp.put("Second", "1");
temp.put("Third", "2");
temp.put("Fourth", "3");
temp.put("Fifth", "4");
pageContext.setAttribute("map", temp, PageContext.PAGE_SCOPE);
%>
<%-- Change "${list}" to "${data}" to demonstrate NPE, and need for better
exception in "Sizetag.doStartTag()". --%>
<bean-el:size id="dataSize" collection="${list}"/>
<bean-el:size id="tempSize" collection="${map}"/>
<div align="center">
<h1>Test struts bean-el Size Tag</h1>
</div>
<jsp:useBean id="bean" scope="page" class="org.apache.struts.webapp.exercise.TestBean"/>
<bean-el:size id="stringSize" name="bean" property="stringArray"/>
<bean-el:size id="intSize" name="bean" property="intArray"/>
<jsp:useBean id="list" scope="page" class="java.util.ArrayList"/>
<bean-el:size id="listSize" name="list"/>
<jsp:useBean id="map" scope="page" class="java.util.HashMap"/>
<bean-el:size id="mapSize" name="map"/>
<table border="1">
<tr>
<th>Collection Type</th>
<th>Correct Value</th>
<th>Test Result</th>
</tr>
<tr>
<td>Bean (List)</td>
<td align="center"><%= list.size() %></td>
<td align="center"><c:out value="${listSize}"/></td>
</tr>
<tr>
<td>Bean (Map)</td>
<td align="center"><%= map.size() %></td>
<td align="center"><c:out value="${mapSize}"/></td>
</tr>
<tr>
<td>Collection (List)</td>
<td align="center"><%= data.size() %></td>
<td align="center"><c:out value="${dataSize}"/></td>
</tr>
<tr>
<td>Collection (Map)</td>
<td align="center"><%= temp.size() %></td>
<td align="center"><c:out value="${tempSize}"/></td>
</tr>
<tr>
<td>Property (int[])</td>
<td align="center"><% int intValues[] = bean.getIntArray(); out.print(intValues.length); %></td>
<td align="center"><c:out value="${intSize}"/></td>
</tr>
<tr>
<td>Property (String[])</td>
<td align="center"><% String stringValues[] = bean.getStringArray(); out.print(stringValues.length); %></td>
<td align="center"><c:out value="${stringSize}"/></td>
</tr>
</table>
</html>
</body>
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