Creation of Spring beans without referring or coding in app context file

Question

我想知道是否有一种方法来定义在不直接将它们编码在spring应用程序上下文文件中的情况下创建的spring bean。

Answer 1

You can use component scan.

<context:component-scan base-package="org.example"/>

or @ComponentScan({"com.foo.bar", "org.example"}) for java config

That way spring will scan the secified package for classes annotated with @Component (or its inheritors @Service , @Repository and @Controller ) and will register them as spring beans.

You can read more here: http://docs.spring.io/spring/docs/3.0.0.M3/reference/html/ch04s12.html