I am using Spring's @Component annotation to configure many of the beans in my Spring 3.0 application. I would like to know if it's possible to construct some of these beans lazily - especially the prototype beans?
To declare lazy-initialized bean you can use @Lazy annotation.
Note, however, that it doesn't make sense for prototype beans - they can't be eagerly initialized, so there is no need to mark them lazy.
Lazy initialization isn't an option in the context of prototype-scoped beans. Those beans are instantiated and initialized on demand every time something asks for them, so they are, by nature, lazily initialized.
来源：https://stackoverflow.com/questions/2365677/creating-lazily-initialized-spring-beans-using-annotation-based-configuration