In the first article, we showed a demo, which talked about a user's password in plain text display usage, in fact, it is unsafe to do, in actual projects often using a variety of encryption methods (for example: bcrypt, md5, sha1, sha2, etc.) to achieve the protection of passwords.
The film article will explain how to achieve the main variety of password encryption usage in Spring Security, as well as further analysis of the use of BCrypt.