在服务器上下载文件

tzylwl

String filePath=request.getParameter("filePath");         //全路径
String fileName=request.getParameter("fileName");         //文件名

try {
    response.setContentType("APPLICATION/OCTET-STREAM");
     File file = new File(filePath);
     if (file.exists()) {
     response.setHeader("Content-Disposition", "attachment; filename=\""
     + new String((fileName).getBytes("gb2312"), "ISO8859-1") + "\"");
     } else {
     }
     
     FileInputStream fis = null;
     
     fis = new FileInputStream(filePath);
     BufferedInputStream bis = new BufferedInputStream(fis);
     OutputStream os = response.getOutputStream();
     BufferedOutputStream bos = new BufferedOutputStream(os);
     byte[] cbuf = new byte[1024];
     
     while (bis.read(cbuf) != -1) {
     bos.write(cbuf);
     }
     bos.flush();
     try {
     bos.close();
     } catch (IOException e) {
     e.printStackTrace();
     }
     try {
     bis.close();
     } catch (IOException e) {
     e.printStackTrace();
     }
   
   
} catch (Exception e) {
e.toString();
}
}