java - 微信多媒体下载出错

Question

愁人，公众号认证通过了，高级接口的权限也都有了，通过多媒体下载接口下载图片报{"errcode":48001,"errmsg":"api unauthorized"}，百度没有任何结果有回答的也都是说是微信服务器的问题， 我这第一次搞就出这问题了也不确定是我的问题还是微信的问题。太郁闷，微信论坛上的问题从来都看不到有人回答，顶多就是把你的错误码给你解释下啥意思。。
跪求大神赐教

Answer 1

Where has the great god gone? .

Answer 2

Has the interface name been added to config?

Answer 3

Authentication is required and has nothing to do with configuration. The official API documentation is really impressive.