How to re-write Guice Interface DI Injector.getInjector().getInstance(Interface.class) on Spring or EE

Question

Guice is avaliable for getting instance of Interface.class, But how we can get the same thing for Interface in Java EE or Spring?

TestVar testVar = Injector.getInjector().getInstance(Interface.class)

Answer 1

Using spring the IoC container is the ApplicationContext. You can directly request it like this.

ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class);
Interface myService = ctx.getBean(Interface.class);

Or you can inject it to your component.

Keep in mind this is a bad practice. You should never request the container directly. You should let it resolve dependencies for you.