In this example, the configure() method is overridden to define the security rules. The authorizeRequests() method specifies which requests should be authorized, and in this case, /public is allowed for all users. The anyRequest().authenticated() ensures that any other request requires authentication. The formLogin() method configures form-based authentication, and logout() enables logout functionality.
User Authentication: By default, Spring Security uses an in-memory user store with auto-generated passwords. You can customize the user details and passwords by overriding the configure() method with AuthenticationManagerBuilder in the configuration class:
In this example, the configureGlobal() method is overridden to configure an in-memory user store. You can customize this method to load user details from a database or other external sources.
Secure Endpoints: Secure your endpoints by applying the appropriate security configurations. For example, you can use method-level security annotations or secure specific URL patterns in the controller:
In this example, the /public endpoint is accessible to all users, while the /secured endpoint requires the user to have the ROLE_USER role.
This is a basic example to demonstrate the setup of Spring Security in a Spring Boot application. You can customize and extend the configuration based on your specific requirements, such as using a database-backed user store, integrating with OAuth providers, or implementing custom authentication providers.