📄 logic-empty.jsp
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<%@ taglib uri="/tags/struts-logic" prefix="logic" %>
<html>
<head>
<title>Test struts-logic Emptiness Tags</title>
</head>
<body bgcolor="white">
<div align="center">
<h1>Test struts-logic Emptiness Tags</h1>
</div>
<jsp:useBean id="bean" scope="page" class="org.apache.struts.webapp.exercise.TestBean" />
<table border="1">
<tr>
<th>Test Type</th>
<th>Correct Value</th>
<th>Test Result</th>
</tr>
<tr>
<td>missing bean, no property attribute</td>
<td>empty</td>
<td>
<logic:empty name="missingBean">empty</logic:empty>
<logic:notEmpty name="missingBean">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>not-missing bean, no property attribute</td>
<td>notEmpty</td>
<td>
<logic:empty name="bean">empty</logic:empty>
<logic:notEmpty name="bean">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>null</td>
<td>empty</td>
<td>
<logic:empty name="bean" property="nullProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="nullProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>empty string</td>
<td>empty</td>
<td>
<logic:empty name="bean" property="emptyStringProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="emptyStringProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>non-empty string</td>
<td>notEmpty</td>
<td>
<logic:empty name="bean" property="stringProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="stringProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>empty collection</td>
<td>empty</td>
<td>
<logic:empty name="bean" property="emptyListProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="emptyListProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>non-empty collection</td>
<td>notEmpty</td>
<td>
<logic:empty name="bean" property="listProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="listProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>empty map</td>
<td>empty</td>
<td>
<logic:empty name="bean" property="emptyMapProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="emptyMapProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>non-empty map</td>
<td>notEmpty</td>
<td>
<logic:empty name="bean" property="mapProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="mapProperty">notEmpty</logic:notEmpty>
</td>
</tr>
<tr>
<td>unsupported object</td>
<td>notEmpty</td>
<td>
<logic:empty name="bean" property="intProperty">empty</logic:empty>
<logic:notEmpty name="bean" property="intProperty">notEmpty</logic:notEmpty>
</td>
</tr>
</table>
</body>
</html>
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