token认证和理解
认知篇:https://blog.csdn.net/FYGu18/article/details/89345490
token失效篇认知:https://segmentfault.com/q/1010000014069729
token失效设置篇:https://segmentfault.com/q/1010000016293852/
ajax请求接口,将token添加到请求头Header中:https://blog.csdn.net/baoyingltt/article/details/82801680