It was the tepid diary that continued to remain the company’s old Symfony project. In conjunction with the company’s logon center, however, the reason is that Symfony2.8 already has the logon content written in the kernel (I’m not sure if the symfony version still does this), and the session is stored in the sessions table. So I spent a week learning about symfony’s listening mechanism and how to determine the current currentUser user, and another week debugging with the login center. Finally, I found that the token called by the APP side exists in another table.