java spring 构造型注释是否有类似的预构造？
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Is there a preConstruction alike for a spring stereotype annotation?
提问by bertie
I could make use of preConstruction=true for my domain class so that i can make use of autowired fields in the constructor such as this :
我可以将 preConstruction=true 用于我的域类，以便我可以在构造函数中使用自动装配的字段，例如：
@Configurable(preConstruction=true)
public class MyDomain {
@Autowired private MyContext context;
public MyDomain() {
context.doSomething(this); // access the autowired context in the constructor
}
}
But then, what is the equivalence for preConstruction when i would like to access autowired fields in a class with the normal stereotype annotation such as @Repository or @Service aside from constructor injection (Currently using spring 3.x here ..) ?
但是，除了构造函数注入之外，当我想使用普通构造型注释（例如@Repository 或 @Service）访问类中的自动装配字段时，preConstruction 的等效性是什么（目前在此处使用 spring 3.x ..）？
@Repository
public class MyDomainRepository {
@Autowired private MyContext context;
public MyDomain() {
// cannot access the autowired context in the constructor
context.doSomething(this);
}
}
采纳答案by axtavt
I don't think something like this is available for regular Spring beans, but the usual way to solve this problem is to use @PostConstruct-annotated method instead of constructor:
我不认为这样的东西可用于常规 Spring bean，但解决这个问题的常用方法是使用@PostConstruct-annotated 方法而不是构造函数：
@PostConstruct
public void init() {
context.doSomething(this);
}
This method will be called by Spring after all dependencies are injected.
注入所有依赖项后，Spring 将调用此方法。
