javaÎļþÏÂÔصļ¸ÖÖ·½Ê½

//JavaÎļþÏÂÔصļ¸ÖÖ·½Ê½  
 
    public HttpServletResponse download(String path, HttpServletResponse response) {  
        try {  
            // pathÊÇÖ¸ÓûÏÂÔصÄÎļþµÄ·¾¶¡£  
            File file = new File(path);  
            // È¡µÃÎļþÃû¡£  
            String filename = file.getName();  
            // È¡µÃÎļþµÄºó׺Ãû¡£  
            String ext = filename.substring(filename.lastIndexOf(".") + 1).toUpperCase();  
 
            // ÒÔÁ÷µÄÐÎʽÏÂÔØÎļþ¡£  
            InputStream fis = new BufferedInputStream(new FileInputStream(path));  
            byte[] buffer = new byte[fis.available()];  
            fis.read(buffer);  
            fis.close();  
            // Çå¿Õresponse  
            response.reset();  
            // ÉèÖÃresponseµÄHeader  
            response.addHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes()));  
  &n