public void copyFile(String oldPathFile, String newPathFile) {
		try {
			int bytesum = 0;
			int byteread = 0;
			File oldfile = new File(oldPathFile);
			if (oldfile.exists()) { // 文件存在
				InputStream inStream = new FileInputStream(oldPathFile); // 读入源文件
				FileOutputStream fs = new FileOutputStream(newPathFile);
				byte[] buffer = new byte[1444];
				while ((byteread = inStream.read(buffer)) != -1) {
					bytesum += byteread; // 字节 文件大小
					System.out.println(bytesum);
					fs.write(buffer, 0, byteread);
				}
				inStream.close();
			}
		} catch (Exception e) {
			message = ("复制单个文件操作出错");
		}
	}