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| Struts2 Data Tags |
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success.jsp
<%@ taglib prefix=”s” uri=”/struts-tags” %>
<html>
<head>
<title>Action Tag Example</title>
</head>
<body>
<h2>Action Tag Example</h2>
<s:action name=”success”>
<b><i>
The action tag will execute the result and
include it in this page.</i></b></div>
</s:action>
</body>
</html>
Output of the success.jsp
2. Bean Tag (Data Tag) Example
The Bean tag is a generic tag that is used to
instantiate a class that confirms to the
JavaBeans specification. This tag has a body,
which can contain a number of Param elements
to set any mutator methods on that class. If
the id attribute is set on the BeanTag, it will
place the instantiated bean into the stack’s
Context.
Add the following code snippet into the
struts.xml file.
struts.xml
<action name=”beanTag”
class=”net.javajazzup.beanTag”>
<result name=”success”>/pages/dataTags/
beanTag.jsp</result>
</action>
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Create an action class as shown below:
beanTag.java
package net.javajazzup;
import
com.opensymphony.xwork2.ActionSupport;
public class beanTag extends ActionSupport {
public String execute() throws Exception{
return SUCCESS;
}
}
Create a simple java bean as shown:
companyName.java
package net.javajazzup;
public class companyName {
private String name;
public void setName(String name){
this.name =name ;
}
public String getName(){
return name;
}
}
Now create a jsp page using <s:bean> and <s:param> tags as shown in the beanTag.jsp
page. The bean tag instantiates the “net.roseindia.companyName” class, it confirms
to the JavaBeans specification. The id attribute
is set on the BeanTag, it places the instantiated
bean into the stack’s Context. The body of <s:bean> tag contains a param element <s:param name=”name”>RoseIndia</
s:param> which is used to set the value for
the setName() method of the “companyName”
class and <s:property value=”%{name}” />
retrieves that value by calling the getName()
method.
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Jan 2008 | Java Jazz Up | 43 |
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