`JustAuth`, as you see, It is just a Java library of third-party authorized login, It's smaller and easier to use. JustAuth is the best third-party login tool written in JAVA.
// After authorization to login, it will return: code(auth_code(Alipay only)),state, After version 1.8.0, you can use the AuthCallback as a parameter to the callback interface
// Note: JustAuth saves state for 3 minutes by default. If it is not used within 3 minutes, the expired state will be cleared automatically.