张锡斌 2018/8/1
http://localhost:8080/oauth/token?username=user_1&password=123456&grant_type=password&scope=select&client_id=client_2&client_secret=123456
http://localhost:8080/oauth/token?grant_type=client_credentials&scope=select&client_id=client_3&client_secret=123456
2.3 authorization code 鉴权码鉴权
http://localhost:8080/oauth/authorize?response_type=code&client_id=client_1&redirect_uri=http://baidu.com
http://localhost:8080/oauth/token?grant_type=authorization_code&code=xlKOFE&client_id=client_3&client_secret=123456&redirect_uri=http://baidu.com (post)
http://localhost:8080/oauth/check_token?token=f94c04d6-1029-41cb-b6ff-7b70c5d05c92
https://www.jianshu.com/p/e6655328b211
https://segmentfault.com/a/1190000010540911?utm_source=tag-newest
http://wiki.open.qq.com/wiki/website/%E4%BD%BF%E7%94%A8Authorization_Code%E8%8E%B7%E5%8F%96Access_Token
http://www.ruanyifeng.com/blog/2014/05/oauth_2_0.html
https://blog.csdn.net/u011537073/article/details/52108369
https://blog.csdn.net/u013887008/article/details/80616422
https://segmentfault.com/a/1190000012275317
https://www.jianshu.com/p/e6655328b211