java 文件下载，中文表名，中文内容

@RequestMapping("userDownloadTemplet")
private void userDownloadTemplet(HttpServletRequest request,HttpServletResponse response, String filePath){
try {

filePath = request.getSession().getServletContext().getRealPath("/WEB-INF/download_templet/用户信息模板.csv");
File file = new File(filePath);
String filename = file.getName(); // 取得文件名。
// String ext = filename.substring(filename.lastIndexOf(".") + 1).toUpperCase(); // 得文件的后缀名。
InputStream fis = new BufferedInputStream(new FileInputStream(filePath)); // 以流的形式下载文件。
byte[] buffer = new byte[fis.available()];
fis.read(buffer);
fis.close();
response.reset(); // 清空response
filename = new String(filename.getBytes("GBK"), "ISO-8859-1");;
response.setHeader("Content-Disposition","attachment;filename=" + filename);
response.setContentType("application/vnd.ms-excel;"); //设置文件类型
response.setCharacterEncoding("utf-8");
response.addHeader("Content-Disposition", "attachment;filename=" + filename);// 设置response的Header
response.addHeader("Content-Length", "" + file.length());
OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/octet-stream");
toClient.write(buffer);
toClient.flush();
toClient.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}