/**
     * 读取数据流保存到指定的路径下
     * @param inputStream 输入流
     * @param path	路径
     * @param fileName 文件名称
     */
public static void saveFile(InputStream inputStream,String path,String fileName) throws IOException {
        BufferedInputStream bis = null;
        BufferedOutputStream bos = null;
        try {
            bis = new BufferedInputStream(inputStream);
            bos = new BufferedOutputStream(new FileOutputStream(new File(path)));
            int len = -1;
            while((len = bis.read()) != -1){
                bos.write(len);
            }
            bos.flush(); //刷新
        } catch (FileNotFoundException e) {
            log.error("文件读取异常!，原因："+ e);
        } catch (IOException e) {
            log.error("文件读取异常!，原因："+ e);
        }finally{
            if(bis!=null)
                bis.close();
            if(bos!=null)
                bos.close();
        }
    }