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how to get the button value from jsp to servlet

how to get the button value from jsp to servlet in jsp:

<input type=button name=bt value=gi onclick="document.frm.submit();"></input>

and in servlet like that:

String gi =request.getParameter("bt");
    System.out.print("button value" +gi);

result=null

thanks

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Rather use <input type="submit">.

<input type="submit" name="bt" value="gi">

Its name/value pair will be sent to the server side as well:

String bt = request.getParameter("bt"); // gi

No need for JavaScript hacks/workarounds here. It would also break your application in case that the client has JavaScript disabled.


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