得到用户想存的路径

@SH一03: 方案已给了啊

@snowjake123: excel文件已经生成了 但没有出现让用户下载的那个框，只是一堆乱码 

try {
                      OutputStream os = response.getOutputStream();
                       wb.write(os);
                      byte[] content = ((ByteArrayOutputStream) os).toByteArray();
                       InputStream is = new ByteArrayInputStream(content);

                       // 设置response参数，可以打开下载页面
                       response.reset();
                       response.setContentType("application/x-msdownload;charset=utf-8");
                       response.setHeader("Content-Disposition", "attachment;filename=" + new String(("季度绩效工资分配.xls").getBytes(), "utf-8"));

                       ServletOutputStream out = response.getOutputStream();

                       BufferedInputStream bis = null;
                       BufferedOutputStream bos = null;

                       try {

                           bis = new BufferedInputStream(is);
                           bos = new BufferedOutputStream(out);

                           byte[] buff = new byte[2048];
                           int bytesRead;

                           // Simple read/write loop.
                           while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
                               bos.write(buff, 0, bytesRead);
                           }
                           bos.flush();
                       } catch (final IOException e) {
                           throw e;
                       } finally {
                           if (bis != null)
                               bis.close();
                           if (bos != null)
                               bos.close();
                       }
            } catch (IOException e) {
              JOptionPane.showMessageDialog(null, "导出失败!");
                e.printStackTrace();
            }

我想用下载的形式让用户去选择路径保存  但没有出现下载的那个窗口，只是一堆乱码    是这样写不对吗？