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Struts2 - Set Tag (Data Tags)

In this section, we are going to describe the Set tag. The set tag is a generic tag that is used to assign a value to a variable in a specified scope. It is useful when you wish to assign a variable to a complex expression and then simply reference that variable each time rather than the complex expression.

Add the following code snippet into the struts.xml file.

struts.xml
<action name="setTag">
   <result>/pages/genericTags/setTag.jsp</result>
</action>

Now create a jsp page using tag as shown in the setTag.jsp page. The set tag is used to assign a value to a variable in a specified scope. The parameters name and value in the tag acts as the name-value pair. Here we set the parameters as
name="technologyName" value="Java".


setTag.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>

<html>
  <head>
  <title>Set Tag (Data Tag) Example!</title>
  </head>
  <body>
  <h1><span style="background-color: #FFFFcc">Set Tag 
   (Data Tags) Example!</span></h1>
  <s:set name="technologyName" value="%{'Java'}"/>
  Technology Name: <s:property value="#technologyName"/>
  </body>
</html>

Output of the setTag.jsp:

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