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in Technique[技术] by (71.8m points)

java - Spring, abstract class and annotations

I've got a pretty simple abstract class

public abstract class AbstractServiceActions {

    @Autowired
    protected DatabaseModel dbModel;

    protected User user;
    protected boolean complete;
    protected String serviceResult;

    public AbstractServiceActions(User user) {
        this.user = user;
        this.serviceResult = "";
    }

    public abstract String doAction();
    }

Now you can see, I'm trying to autowire the DatabaseModel. But in my extended class I only recieve null for the dbModel.

@Component
public class CreateDatabaseAction extends AbstractServiceActions {
....
}

Question: Am I trying something impossible here?

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by (71.8m points)

Your setup seems fine. The reason perhaps lies elsewhere. Maybe you are instantiating the class with new CreateDatabaseAction(), rather than letting spring do this.


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