二进制流与base64位相互转换
base64传到前端需要有文件头来区分
先自己定义一个
/*** 图片base64格式Map*/private static final Map<String, String> DATA_IMAGE_MAP = new HashMap<String, String>() {{put("png", "data:image/png;base64,");put("jpg", "data:image/jpeg;base64,");}};
base64转二进制流
/*** base64转二进制流并封装附件实体* @param content* @return*/public static FbAttachment stringChange(String content){FbAttachment fbAtta