在c#中调用超级构造函数

本文关键字：构造函数 调用 | 更新日期: 2023-09-27 18:18:48

我有类，如AccountsController, ProductsController等，都继承自BaseController。Unity会根据需要设置我的服务。这些类也都需要_sequence服务。因为这是所有类的共同要求，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;
    }

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

在c#中调用超级构造函数

可以链接构造函数:

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

请注意，链接的BaseController(使用base关键字)已经传递了productService参数，尽管这可以是任何东西。

更新:

你可以做以下(穷人的依赖注入):

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

或者，通过您的继承类型传递对ISequenceService的依赖:

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