怎么使用java上传 文章素材？有木有现成的代码~

https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/Adding_Permanent_Assets.html

想和独立站点的文章同步，免去一次编辑。现在是获取素材列表出现了问题.....

https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/Get_materials_list.html

{"errcode":40004,"errmsg":"invalid media type hint: [mBKpra00384963] rid: 60d97526-481c1e1d-6971525d"}