Servlet Exception - getOutputStream() has already been called for this response

Question

In my servlet

an exeception thrown as

org.apache.jasper.JasperException: java.lang.IllegalStateException: getOutputStream() has already been called for this response

help me to resolve this problem

thanks in advance

Answer 1

This will happen if a call is made to ServletResponse.getWriter() when an OutputStream has already been created for the response. Only one of getWriter() or getOutputStream() can be used to write a response body, not both.

Take a look at the stack trace associated with the exception to see if this is the case. Then, if you are trying to write character data use (only) getWriter() or for a binary response use getOutputStream().

Answer 2

you can remove the return if you are using struts

Answer 3

what if we're using jsp??