Spring 5 Design Patterns

The Use phase of beans

In a Spring application, all Spring beans spend 99.99% of their time in this phase. If the initialization phase is completed successfully, then the Spring beans come into this phase. Here, beans are used by clients as application services. These beans process client requests, and carry out application behaviors. In the Use phase, let's see how to invoke a bean obtained from the context in the application where it is used. Please refer to the following code:

    //Get or create application context from somewhere 
    ApplicationContext applicationContext = new        AnnotationConfigApplicationContext(AppConfig.class); 
 
    // Lookup the entry point into the application 
    TransferService transferService =     context.getBean(TransferService.class); ...