This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I am using poi api for generating excel sheets.iam creating workbook and sheets in my code.for writing the output iam using outputstream(). response.getoutputstream() build and deployment successful. but when i ran the servlet on browser iam getting the following error. cannot call getoutputstream() after getwriter()