https://api.weixin.qq.com:443: Socket closed？
I/O exception (java.net.SocketException) caught when processing request to {s}->https://api.weixin.qq.com:443: Socket closed I/O error on GET request for "https://api.weixin.qq.com/sns/oauth2/access_token": Socket closed; nested exception is java.net.SocketException: Socket closed
