What processes are initiated in Spring when the application is first accessed?

When a Spring application starts for the first time, several key processes occur:

1. Initialization of the application context (ApplicationContext) — Spring loads configurations and creates the container.

2. Component scanning (Component Scan) — searching for and registering beans annotated with (@Component, @Service, @Repository, etc.).

3. Creation and dependency injection (Dependency Injection) — creating bean instances and setting dependencies.

4. Execution of initialization methods (@PostConstruct, InitializingBean) — preparing beans for operation.

5. Starting the embedded server (if it's Spring Boot) — for example, Tomcat or Jetty.

6. Application readiness to serve requests.

Thus, Spring prepares all necessary components and infrastructure for the correct operation of the application.