Complete set of learning (4) springboot use interceptors

https://blog.csdn.net/taojin12/article/details/88342576#1321__124

 

 

Login interception

First visit interceptor, preHandle this method to detect the presence or absence token.

 

If there is, it returns true, then the user has logged in, the method of execution controller. Continue other operations, due to the current operation are logged, so continue logging.

 

If not, it returns false, prove not logged in, jump to the login screen.