C# 类如何继承基类和接口，并通过 IOC 解析两个类的接口？

Question

这都是快速输入的伪代码来说明问题。 我有一个实现接口的基类。 然后，我在两个子类中继承该类，这两个子类实现了自己的接口。 最后，我将其中一个子类注入到控制器中。

我的希望是可以调用基类的

Delete

和

GetSearches

方法以及子类的

GetCustomerSearchResults

方法。 但这不能编译。 因此，显然即使子类继承自实现该接口的类，也无法找到基类接口。

我还能如何做到这一点，以在基类中保留更通用的查找、保存、删除方法，同时在子类中拥有更具体的实体类型方法，并在控制器中提供两个可用的接口方法？ 是否有某种设计模式可以很好地解决这个问题？

public interface ISearchService{
    Task<List<Search>> GetSearches(int userId);
    Task DeleteSearch(int id);
}

public class SearchService : ISearchService {
    private IRepository _repository;

    public SearchService(IRepository repository){
        _repository = repository;
    }

    public async Task<List<Search>> GetSearches(int userId){
        return await _repository.GetUserSearches(userId);
    }

    public async Task DeleteSearch(int id){
        await _repository.DeleteSearch(id);
    }
}


public interface ISalesSearchService{
    Task<SearchResultReport> GetSalesSearchResults(Search search);
}

public class SalesSearchService : SearchService, ISalesSearchService{

    public ISalesSearchRepository _salesRepository;
    public SalesSearchService(IRepository repository, ISalesSearchRepository salesRepository) : base(repository){   
        _salesRepository = salesRepository;
    }

    public async Task<SearchResultReport> GetSalesSearchResults(Search search){
        return _salesRepository.GetSalesSearchResults(search);
    }
}


public interface ICustomerSearchService{
    Task<SearchResultReport> GetCustomerSearchResults(Search search);
}

public class CustomerSearchService : SearchService, ISalesSearchService{

    public ICustomerSearchRepository _customerRepository;
    public SalesSearchService(IRepository repository, ICustomerSearchRepository customerRepository) : base(repository){ 
        _customerRepository = customerRepository;
    }

    public async Task<SearchResultReport> GetCustomerSearchResults(Search search){
        return _customerRepository.GetCustomerSearchResults(search);
    }
}

public class CustomerSearchController : Controller {

    private ICustomerSearchService _customerSearchService;

    public CustomerSearchController(ICustomerSearchService customerSearchService){
        _customerSearchService = customerSearchService;
    }

    public async Task Delete(int id){
        await _customerSearchService.Delete(1);
    }

    public async Task<IActionResult> GetSearchResults(int id){
        var searches = await _customerSearchService.GetSearches(_userId);
        var search = searches.FirstOrDefault(x => x.Id == id);

        var results = await _customerSearchService.GetCustomerSearchResults(search);
        return View(results);
    }
}

Answer 1

在接口中使用继承。

 ICustomerSearchService : ISalesSearchService

和

 ISalesSearchService : ISearchService