Method to give me the name of the button

[Elouise Kivineva]

I seem to remember that is was possible to have several buttons call the post method of the same servlet, then identify the source to find out who called the servlet so the serlet knows which (of several possible services) is desired. I can't find it in memory, notes or javadocs. Anybody know what I'm thinking of?

[Prakash Dwivedi]

Create all the submit button with the same name
<input type="submit" name="submitbutton" value="action1">
<input type="submit" name="submitbutton" value="action2">
<input type="submit" name="submitbutton" value="action3">
In your servlet
request.getParameter("submitbuuton");
This will return the value of the button clicked.
I hope this helps

[Elouise Kivineva]

Excellent. Thank you!

[Stein M. Hugubakken]

I'm using this method:
protected boolean buttonPressed(String name) {
if (req.getParameter(name) != null)
return true;
else
return false;
}
If the html is something like this:
<input type="submit" name="b_ok" value="Ok">
<input type="submit" name="b_cancel" value="Cancel">
you can test for the button like this:
if(buttonPressed("b_ok"))
handleOk();
else
handleCancel();
This method also works when you have several languages for your web-site since you are testing against the name and not the value(label).
Stein

[Ron Newman]

Nitpick: It is never necessary to write code like this:

if (req.getParameter(name) != null)
    return true;
  else
    return false;

when you can instead say

return (req.getParameter(name) != null);