protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
ServletOutputStream outputStream = response.getOutputStream();
FileInputStream fis=new FileInputStream("E:/sound.mp3");
response.setContentLength(fis.available());
response.setContentType("audio/basic");
response.addHeader("content-disposition", "attachment;filename=abc.mp3");
while(true){
int read = fis.read();
if(read==-1)break;
outputStream.write(read);
}
fis.close();
}