如何在spring中通过默认的限定符bean名称获取@Service bean

Question

I have many ServiceImpl beans but I want to access specific bean by its default name like

 class SuperServiceImpl {}

 class UserServiceImpl extends SuperServiceImpl {}

 class PlaceServiceImpl extends SuperServiceImpl {}

 public SuperServiceImpl getServiceImpl(String qualifierName) {
       // if qualifierName="userServiceImpl"
       //   return UserServiceImpl
 }

I tried to implement following solution

Auto-cast Spring Beans

but I'm not getting getBean() method on ApplicationContext reference.

Answer 1

return applicationContext.getBean(qualifierName, SuperServiceImpl.class) you may want to define an interface for SuperServiceImpl and use return applicationContext.getBean(qualifierName, SuperService.class) instead, especially if you have multiple implementations.

Of course, to make that work you need to define your beans properly:

• With XML the qualifier is the id attribute of the bean element
• With Javaconfig, the name of the method is the bean name by default. You can override that of course with the name attribute of the @Bean annotation

Answer 2

Found easiest solution..

1)I autowired ApplicationContext

2)Passed default qualifier name to method getBean(defaultQualifierName)

thats it..

thanks guys for helping me.