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| Struts2 Data Tags |
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8. Property Tag (Data Tag) Example
The property tag is a generic tag that is used
to get the property of a value, which will default
to the top of the stack if none is specified.
Add the following code snippet into the
struts.xml file.
struts.xml
<action name=”propertyTag”
class=”net.javajazzup.propertyTag”>
<result>/pages/dataTags/propertyTag.jsp
</result>
</action>
Create an action class as shown:
propertyTag.java
package net.javajazzup;
import
com.opensymphony.xwork2.ActionSupport;
public class propertyTag extends
ActionSupport {
public String execute() throws Exception{
return SUCCESS;
}
}
Create a bean class “companyName” 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;
}
}
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Create a jsp using the tags.
<s:property value=”%{name}” /> it prints
the result of myBean’s getMyBeanProperty()
method.
<s:property value=”name” default=”Default
Value” /> it prints the result of
companyName’s getName() method and if it
is null, print ‘a default value’ instead.
propertyTag.jsp
<%@ taglib prefix=”s” uri=”/struts-tags” %>
<html>
<head>
<title>Property Tag Example</title>
</head>
<body>
<h2>Property Tag Example</h2>
<!— Example to pick the value through bean
class —>
<s:bean
name=”net.javajazzup.companyName”
id=”uid”>
<s:param name=”name”>JavaJazzUp</
s:param>
<s:property value=”%{name}” /><br>
</s:bean>
<!— Default value —>
<s:property value=”name”
default=”Default Value” />
</body>
</html>
Output of the propertyTag.jsp:
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Jan 2008 | Java Jazz Up | 50 |
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