Why the .action extension in required in struts2?

[sarada bokka]

Hi all,

I have been observed that for the very first request .action is required (ex: <META HTTP-EQUIV="Refresh" CONTENT="0;URL=sampleAction.action">)

Can anyone explain me why only for the first request .action extension is required?

[Bear Bibeault]

"shasha ch", please check your private messages for an important administrative matter.

[David Newton]

Because in that example the request is being made from an HTML page, outside of the Struts 2 application. Without the extension (by default, anyway) the container wouldn't know it was a Struts 2 action request.

[Johannes Geppert]

You dont need to use action, you can edit your extension in the struts2.xml

Default is
<constant name="struts.action.extension" value="action" />

But you can use anything
<constant name="struts.action.extension" value="html" />

With the rest plugin you can use Struts2 with rest based URLs
without an extension.

Best Regards

Johannes Geppert

[David Newton]

You don't actually need the REST plugin for extension-less actions, though.

The default extension mapping in Struts 2.1+ is "action,,", meaning extensionless actions are supported out-of-the-box.

[sarada bokka]

My question is about why only for the first request .action is required?

I guess David gave the answer

[David Newton]

It doesn't have anything to do with it being the *first* request, though.