OutputStream与生成excel文件

// String filePath = "*****.csv";
// File file = new File(filePath);
// FileOutputStream outStream;
// try {
// outStream = new FileOutputStream(file);
// wb.write(outStream);
// outStream.flush();
// outStream.close();
// } catch (FileNotFoundException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// } catch (IOException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
//还有一种逗号CSV
String pay ="我,你,他";
response.setContentType("application/octet-stream");
            response.setHeader("Content-disposition", "attachment; filename=glps.csv");
            response.setCharacterEncoding("gb2312");
            PrintWriter out = response.getWriter();
            out.write(pay);
            out.flush();
            out.close();