在C调用超级构造函数＃

Question

我有类，如AccountsController，ProductsController等都从BaseController继承。 Unity根据需要设置我的服务。这些类也都需要_sequence服务。因为这是所有类的通用要求，所以我想在BaseController中对其进行编码。

public class AccountsController : BaseController 
{ 
    public AccountsController(
     IService<Account> accountService) { 
     _account = accountService; 
    } 

public class ProductsController : BaseController 
{ 
    public ProductsController(
     IService<Account> productService) { 
     _product = productService; 
    } 


public class BaseController : Controller 
{ 
    public IService<Account> _account; 
    public IService<Product> _product; 
    protected ISequenceService _sequence; 

    public BaseController(
     ISequenceService sequenceService) { 
     _sequence = sequenceService; 
    } 

但我该怎么做？我应该在每个AccountsController和ProductsController的构造函数中设置对BaseController的调用吗？

Answer 1

你可以连续constructors：

public class ProductsController : BaseController 
{ 
    public ProductsController(
     IService<Account> productService) : base(productService) 
    { 
     _product = productService; 
    } 
} 

注意，链接BaseController（使用base关键字）已经通过了productService参数，坚韧这可以是任何东西。

更新：

您可以执行以下操作（差芒依赖注入）：

public class ProductsController : BaseController 
{ 
    public ProductsController(
     IService<Account> productService) : base(new SequenceService()) 
    { 
     _product = productService; 
    } 
} 

或者，通过在ISequenceService依赖通过你的继承类型：

public class ProductsController : BaseController 
{ 
    public ProductsController(
     IService<Account> productService, ISequenceService sequenceService) 
     : base(sequenceService) 
    { 
     _product = productService; 
    } 
}