图片消息消息体中的缩略图应该如何解析

场景说明:

图片消息中缩略图是存放在消息体 content 中的,content 有时候会出现格式不一致无法解析的问题。

格式说明:

  1. 图片消息体的缩略图默认是以 base64 格式编码的,以下面的 content 为例

“content”:“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”

这种格式如果想要查看缩略图,需要首先把引号去掉,然后将 “/” 替换成 “/” ,接下来将编码传放到解码器中解析,即可得到图片格式的缩略图:

  1. 另一种格式的编码是下面这样的,这种的编码经过了 unicode 和 base64 两层编码:

"content":"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\u003d\

这种格式如果想要查看缩略图,需要先用 unicode 转中文,再将 “/” 替换成 “/”,再用 base64 解码,即可得到缩略图。