2018-11-19 18:15:39.615 ERROR 27008 — [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on GET request for “https://api.weixin.qq.com/sns/oauth2/access_token”: Connection timed out (Connection timed out); nested exception is java.net.ConnectException: Connection timed out (Connection timed out)] with root cause
java.net.ConnectException: Connection timed out (Connection timed out)