Spring多个实现相同的接口

Question

I have an Interface and multiple implementation classes, around 10, of this interface.

I have a naming convention like prefix + name + suffix so during runtime, I can add @Autowired private Map<String, MyInterface> myImplementations; and then access the implementation class with myImplementations.get() method.

Is there a better way of accessing those implementations? I only know which impl. I needed during runtime, changes depends on the message I received.

Answer 1

You can implement BeanFactoryAware interface in your class and then use injected bean factory to get needed implementation:

Interface impl = beanFactory.getBean("interfaceimpl");

or

Interface impl = beanFactory.getBean(InterfaceImpl.class);