What is the JWT
Json web token (JWT) is a statement in order to pass between the network application execution environment JSON-based development standards (RFC 7519), the token is designed to be compact and safe, especially for distributed sites to a single point of landing ( SSO) scenarios. JWT's statement is generally used between identity providers and service providers to deliver the authenticated user identity information in order to obtain resources from the server, you can also add some additional business logic other necessary information statement, the token also may be directly used for authentication may be encrypted.
Original link: https://blog.csdn.net/shmely/article/details/85915044