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Arrtibute</h3>
<s:generator
val=”%{‘JAVA,HTML,CSS,AJAX,JAVA
SCRIPT’}” count=”4" separator=”,”
id=”myAtt” />
<%
Iterator i = (Iterator)
pageContext.getAttribute(“myAtt”);
while(i.hasNext()) {
String s = (String) i.next(); %>
<%=s%> <br/>
<% }
%>
</body>
</html>
Output:
8. Subset Tag (Control Tags) Example
The subset tag is a generic tag that takes an
iterator and outputs a subset of it. It
delegates to
org.apache.struts2.util.SubsetIteratorFilter
internally to perform the subset functionality.
Create a list in the action class and populate
it with various items as shown in the
“SubsetTag” class.
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SubsetTag.java
import
com.opensymphony.xwork2.ActionSupport;
import java.util.*;
public class SubsetTag extends
ActionSupport {
private List list;
public String execute() throws Exception{
list = new ArrayList();
list.add(new Integer(100));
list.add(new Integer(200));
list.add(new Integer(300));
list.add(new Integer(150));
list.add(new Integer(400));
return SUCCESS;
}
public List getList(){
return list;
}
}
Now create a jsp page using <s:subset> and <s:iterator> tags as shown in the
SubsetTag.jsp page. The subset tag takes an
iterator and outputs a subset of it.
SubsetTag.jsp
<%@ taglib prefix=”s” uri=”/struts-tags” %>
<html>
<head>
<title>Subset Tag Example</title>
</head>
<body>
<h2>Subset Tag Example</h2>
<s:subset source=”list”>
<s:iterator>
<s:property /><br>
</s:iterator>
</s:subset>
</body>
</html>
Output:
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Dec 2007 | Java Jazz Up | 48 |
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