spring-security-jwt

• 在前后端分离的开发框架下，后端无法通过一些传统方法的比如servlet的状态变量来判断前端是否已经获得授权，本代码示例了如何用jwt(json web token)和 spring security进行有效的授权数据传输。

• Under the web app development framework where front-end and back-end are separated, the back-end cannot judge whether the front-end has been authorized through some traditional methods such as servlet status variables. This demo shows how spring security to do authorized data transmission with front-end via jwt(json web token).