Question

Spring（来自版本4）声称支持泛型类型注入，我试图做这样的事情：

public abstract class AbstractControl<T extends IService> {

@Autowired
private T service;

protected T getService(){
    return service;
}

public void setService(T service) {
    this.service = service;
}

}

然后是这个类的扩展：

public class FooControl extends AbstractControl<LoginService> {
}

但是Spring试图注入IService。是否可以注入继承的类型？

Answer 1

尝试将@Autowired移动到子类中，如下所示：

  public abstract class AbstractControl<T extends IService> {

    private T service;

    protected T getService(){
        return service;
    }

    public void setService(T service) {
        this.service = service;
    }
  }

子类：

public class FooControl extends AbstractControl<LoginService> {

   @Override
   @Autowired
   public void setService(LoginService service) {
        this.service = service;
    }
}

Spring autowire泛型类型

1 个答案: