What type of dependency injection is it when we use @Autowire on a class field?… here is a solution to the problem.
What type of dependency injection is it when we use @Autowire on a class field?
One way is for DI to use the setter method. Another way is to use constructor.
I was just wondering what type of DI the following way is:
public class Test {
@Autowired
TestService service;
...
}
Solution
That is, “field injection”. Usually you can choose from 3 types:
- Field injection
- Constructor injection
- Setter injection (inject).
They each have their own advantages and disadvantages. Injecting in the test field is normal practice.