Thank you for the idea.
Here is the java code I use in the servlet and it works nicely :
protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
ServletContext context = this.getServletContext();
String fileName = "name.csv";
String javaServerPage = "page.jsp":
response.setContentType("application/x-download");
response.setHeader("Content-Disposition", "attachment;filename=" +
fileName);
OutputStream stream = response.getOutputStream( );
OutputStreamWriter writer = new OutputStreamWriter(stream);
BufferedWriter buffer = new BufferedWriter(writer);
// Write things in OutputStream
writer.write(...);
buffer.flush();
writer.flush();
buffer.close();
writer.close();
buffer = null;
writer = null;
RequestDispatcher dispatcher = context.getRequestDispatcher
(javaServerPage);
dispatcher.forward(request, response);
}
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