OAuth2 based SSO
问题 Our project consists several sub application, and we are looking for a solution to implement SSO to avoid the authentication for each sub application. Suppose this is the structure of our project: authentication server(call it AS or IdP or something else) order-system product-system data-analysis-system ....... And we found that there are a lot of articles of "SSO implemented based on OAuth2" like this. In that article, we prefer to the SAML strategy because it is simple and clear, however