图片转换成base64

	public static String imgToBase64(File img) {
		InputStream is = null;
		byte[] data = null;
		try {
			is = new FileInputStream(img);
			data = new byte[1024];
			is.read(data);
		} catch(IOException e) {
			e.printStackTrace();
		} finally {
			if (is != null) {
				is.close();
			}
		}
		return Base64.encodeBase64String(data);
	}

图片转换成base64

原文：https://www.cnblogs.com/lzy7422/p/14863774.html