Home >> Struts
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.
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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.
If anything missed out , please let me know at
techienjoy at yahoo . com
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