1楼：https://developers.weixin.qq.com/doc/oplatform/Website_App/WeChat_Login/Authorized_Interfa ..

2楼：https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/JS-SDK.html

3楼：[本部分内容设定了加密]

4楼：E:\temp>keytool -genkey -alias testalias -keyalg RSA -keysize 2048 -validity 36500 -keysto ..