What is the process of spring loading?

The process of Spring loading can be divided into the following steps:

1. The initialization process of the Spring container involves reading configuration files at startup, and instantiating and configuring objects based on the definitions in the file. Common types of configuration files include XML and annotation-based files.
2. Instantiation of Bean: The Spring container will instantiate the configured Bean object based on the definitions in the configuration file. The Bean object can be instantiated via a constructor or through a factory method.
3. Dependency injection in Bean: The Spring container will inject instantiated Bean objects into other Beans based on the definitions in the configuration file. This can be done through constructor injection, Setter method injection, or interface injection.
4. Bean initialization: After dependency injection is completed, the Spring container will call the Bean’s initialization method to perform additional configuration or initialization on the Bean.
5. Container readiness: After all Bean objects have been instantiated, injected and initialized, the Spring container enters a ready state and can provide the necessary services.

Throughout the loading process, the Spring container instantiates, configures, and initializes according to the definitions in the configuration files, ultimately creating a complete runtime environment for the application.