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Tags/Keywords : Struts, Struts2 Tutorial, Struts 2 Example, Struts2
Author : admin
Date (Year/Month/Date): 2010-05-31
Struts 1.x version and date validation example discussed

Please be informed that NONE of the design/code/matter from this page is claiming to be some
sort of best practice and we DO NOT expect any of our visitor/reader of this page to assume
this as some sort of best practice for any context and should not be using this as it is
without appropriate evaluation.
This page intends only to provide bits and pieces of known ways  for doing some sort of example
and may not be fit for any other purpose.

In spite of all precautions taken to provide accurate and avoid any typo in these pages,
there might be some issues like grammatical mistakes and typo being observed in these pages,
We extend our sincerest apologies for the same.




Date validation can be performed using validator
framework while using Apache Struts 1.x version.

I have successfully executed following example
with a very simple date validation for required
and date pattern and date pattern strict.

One of the difference between datePattern and 
datePatternStrict is with datePattern only the
pattern is matched and not the total length and
whether a valid date or not a date is validated.
While datePatternStrict is used to check
for valid date and total length of the field value
as well.

This example is having a very simple date field
and the corresponding validation XML file is
as follows:

---------------------------------------------------------
<form-validation>
 <global>
 </global>
 <formset>
 <form name="exampleForm">
  <field property="name" depends="required,mask">
    <arg0 key="exampleForm.name.text"/>
    <var>
     <var-name>mask</var-name>
     <var-value>^[a-zA-Z]+$</var-value>
    </var>
   </field>
   <field property="dob" depends="required,date">
    <arg0 key="exampleForm.dob.text"/>
    <var>
     <var-name>datePatternStrict</var-name>
     <var-value>mm - dd - yyyy</var-value>
    </var>
   </field>
  </form>
 </formset>
</form-validation>
---------------------------------------------------------
so the actionform is defined as exampleForm in the
struts-config.xml file:

---------------------------------------------------------
    <form-bean name="exampleForm"
                    type="action.ExampleForm"/>
---------------------------------------------------------


index.jsp file is as follows:
---------------------------------------------------------
<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html:html locale="true">
<head>
<title><bean:message key="index.title.label"/></title>
<html:base/>
</head>
<body bgcolor="white">
<logic:messagesPresent>
  <html:messages id="errors">
    <%= errors %>
  </html:messages>
</logic:messagesPresent>
<table>
<html:form method="post" action="example">
<tr><td><bean:message key="index.name.label"/>
    </td><td><html:text property="name"/></td>
</tr>
<tr><td><bean:message key="index.dob.label"/></td>
    <td><html:text property="dob" /></td>
</tr>
<tr><td><html:submit property="butSubmit" 
                     value="Submit"/></td>
    <td><html:button property="butReset" 
	             value="Reset"/></td>
</tr>
</html:form>
</table>
</body>
</html:html>
---------------------------------------------------------

Following the above JSP  file, the action mapping in
struts-config XML file is as follows:

---------------------------------------------------------
<action-mappings>
<action path="/example"
        type="action.ExampleAction"
        name="exampleForm"
       scope="request" validate="true" input="/index.jsp">
  <forward name="success" path="/preview.jsp"/>
</action>
</action-mappings>
---------------------------------------------------------

and the next file is a preview page, which can be a very
simple page witha  println statement only, just to know
that this page is called after successful validation happening.

Hope this helps.

If you have any further queries and need to discuss
please write to me here in this page.

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