Looking for logging into the Spring Oauth2 Post site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Spring Oauth2 Post site. After that you can login as usual with your login credentials.
https://www.baeldung.com/spring-security-5-oauth2-login
https://www.baeldung.com/spring-security-login
https://stackoverflow.com/questions/47202657/spring-security-oauth2-post-request-to-oauth-token-redirects-to-login-and-role
https://dzone.com/articles/spring-security-5-oauth-20-login-and-signup-in-sta
https://blog.couchbase.com/spring-security-oauth2_authentication/
https://github.com/spring-projects/spring-security-oauth/issues/804
https://www.callicoder.com/spring-boot-security-oauth2-social-login-part-1/
https://www.callicoder.com/spring-boot-security-oauth2-social-login-part-2/
https://docs.spring.io/spring-security/site/docs/current/reference/html5/
https://developer.okta.com/blog/2018/04/02/client-creds-with-spring-boot
https://www.devglan.com/spring-security/spring-security-oauth2-user-registration
http://websystique.com/spring-security/secure-spring-rest-api-using-oauth2/
https://www.ibm.com/developerworks/library/se-oauthjavapt3/index.html