https://blog.csdn.net/poorcoder_/article/details/70231779
https://github.com/lovelyCoder/springsecuritydemo.git
https://blog.csdn.net/u012809062/article/details/73251036
https://my.oschina.net/go4it/blog/1510448?nocache=1537695224811
https://blog.csdn.net/codes520/article/details/78964748
https://github.com/spring-projects/spring-security-javaconfig/blob/master/samples-web.md#sample-multi-http-web-configuration