java - Spring非托管对象的 Autowiring

Question

这个问题已经有答案了:

How to inject dependencies into a self-instantiated object in Spring? (7 个回答)

已关闭 7 年前。

我想知道如何在不受 Spring 应用程序上下文管理的 java 对象中 Autowiring sprig beans。我创建了一个类的实例，但后续的 Autowiring 对象为空。例如。

@Service
Class BaseFactory {
public BaseObject getObject(String type ){
    BaseObject object = null; 
    if(type.equalsIgnoreCase("order")){
       object = new FirstServiceObject();
    }
   else if(type.equalsIgnoreCase("payment")){
      object = new SecondServiceObject();
    }
  return object;
}

服务等级

@Service
@Configurable
public class FirstServiceObject{

@Autowired
UserRepository mUserRepository;// coming as null

@Autowired
UserHelper userHelper;//coming as null

public getDownloadedData(String userName, String b){
   User user = userHelper.findUser(userName); //null pointer exception
}

}

我的助手类，我从那里调用上面的内容。

public class SomeHelper {

@Autowired
BaseFactory baseFactory;

public processUser(){
 BaseObject object = baseFactory.getObject("order");
 object.getDownloadedData("sunil","someString")
}

所有 Autowired beans 在 FirstServiceObject 中都为 null

我已经检查了已经给出的所有可能的解决方案，但似乎没有一个适合我。

Answer 1

以下帖子中给出的答案解决了该问题。 How to inject dependencies into a self-instantiated object in Spring?这就是我所做的

public class SomeHelper {

  @Autowired
  BaseFactory baseFactory;

  @Autowired
  AutowireCapableBeanFactory beanFactory;

  public processUser(){
    BaseObject object = baseFactory.getObject("order");
    beanFactory.autowireBean(object);
    object.getDownloadedData("sunil","someString");
 }
}