Stopping URL query string being used on refresh

i have created an online shop system and the 'shopping basket' part is passed an item to add to it. e.g. basket.jsp?additem="lv01"

however when the refresh button is pushed the item is added again which i am trying to prevent.

any suggestions?

Thanks
Mark
scarykitten123Asked:
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bobbit31Commented:
in basket.jsp can't you just redirect to another page after you add the item? even if the page is simply basket.jsp without the querystring?
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kennethxuCommented:
that's a common problem. after your added a new item. use
if(..) { //add new item
  // add it to basket bean in session scope
  response.sendRedirect( "basket.jsp" );
  return;
}
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girionisCommented:
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