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Set browser language via a dropdown in javascript or via JSTL?

Posted on 2006-07-13
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Last Modified: 2013-11-24
Is it possible to set a users browser language through javascript or using the JSTL?

I have a webapp that has been internationalized.  This works fine for english/spanish/french.

I want to be able to change the displayed language on the fly via a dropdown.  This dropdown would contain (english, spanish, french) and upon clicking one of these, the page would refresh and the new browser language would be set.

Is there a way to do this?  Can I take advantage of the app already being internationalized and change the language "on the fly" so to speak?

Thanks.
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Question by:csciguy81
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liviutudor earned 500 total points
ID: 17100742
well the best way -- in my humble opinion -- is to have a session property for the user language. Then use a dropdown menu on each page so when the user changes it, you take another trip to the server and submit the new language value, store this in the session so then every time the user requests a page, you can check out the language s/he selected last and display the page using that language.
In other words, do it server side.
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by:csciguy81
ID: 17102988
I ended up storing it in the session, but not doing the processing server side.  

Set an attribute called "locale" in the session, based on the users dropdown selection.

Run this on my page, and it works fine.
<%String language="";
if((String)session.getAttribute("locale")!=null){
      language=(String)session.getAttribute("locale");
}else{
      language="en";
}
%>
<fmt:setLocale value="<%=language%>"/>
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