can we use jxl for google app engine application?

Can we use JXL (Java Excel API开发者_运维百科) to generate Excel file in Google app engine application?

Also, how to generate Excel file in servlet for Google app engine application?

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Yes you can!

Follow the tutorial to learn about JXL.

To create a Workbook inside a servlet:

  protected void doGet(HttpServletRequest req, HttpServletResponse resp) {
    // Specifying in the response headers that a file is gonna be returned
    resp.setContentType("application/x-download");
    // Specifying the name of the file
    resq.setHeader("Content-Disposition", "attachment; filename=MyName.xls");

    // Create the workbook with the output stream of the response
    WritableWorkbook jxlWorkbook = Workbook.createWorkbook(resp.getOutputStream());
    // Do your stuff
    // ...

    // Finally close the stream
    resp.getOutputStream().close();
  }