How to Use Struts 2 token tag

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How to Use Struts 2 token tag
1 Answer(s) 4 years and 9 months ago
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August 29, 2008 at 1:27 PM

Hi friend,

A web page where user can input data and press a button to submit.
There could be a problem that the user submit the data many times,
by either clicking the button many times,
or use the browser back button and then submit the form again.
To solve the re-submission use a hidden token in the form. The token is autogenerated and unique from time to time.

e.g

<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head><title>Token</title></head>

<body>
<h1>Token</h1>

<s:form action="transfer">
<s:token/>
<s:textfield label="fieldname" name="fieldname" required="true" value="100"/>
<s:submit value="Transfer money"/>
</s:form>

</body>
</html>

Thanks

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