Struts 2 s:checkbox tag is helpful for selcting the multiple options in a web page. The values for each field is stored as “true” or “false” based on the selection status of each field. The data type of check box filed is of boolean. The below example shows a very simple example with single check box in a page and taking the selected value to the next page.
1. Action Class
[code lang=”java”]
package javabeat.net.struts2;
public class Struts2UITagsAction{
private boolean checked;
public boolean isChecked() {
return checked;
}
public void setChecked(boolean checked) {
this.checked = checked;
}
public String execute(){
return "success";
}
}
[/code]
2. CheckBox Tag Example
CheckBox.jsp
[code lang=”xml”]
<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
</head>
<body>
<h1>JavaBeat – Struts 2 CheckBox Tag Demo</h1>
<s:form action="Result">
<s:checkbox name="checked" label="isChecked" />
<s:submit label="Submit" />
</s:form>
</body>
</html>
[/code]
Result.jsp
[code lang=”xml”]
<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head></head>
<body>
<h1>JavaBeat – Struts 2 CheckBox Tag Demo</h1>
<h4>
Is Checked? : <s:property value="checked" /><br>
</h4>
</body>
</html>
[/code]
3. Struts.xml
[code lang=”xml”]
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts
Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="textfielddemo" extends="struts-default">
<action name="Result" class="javabeat.net.struts2.Struts2UITagsAction" >
<result name="success">Result.jsp</result>
</action>
</package>
</struts>
[/code]
4. CheckBox Tag Demo
If you access the application using URL http://localhost:8080/Struts2App/CheckBox.jsp, you would see the following output.
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