Question

public class BaseController : Controller
{
    private readonly ApplicationDbContext _context;
    private readonly IIdentityService _identityService;

    public BaseController(ApplicationDbContext context, IIdentityService identityService)
    {
        _context = context;
        _identityService = identityService;
    } 

    public BaseController()
    {
    }

     //reusable methods
     public async Task<Account> GetAccount()
     {
        //code to do something, i.e query database
     }


}

public class MyController : BaseController
{
    private readonly ApplicationDbContext _context;
    private readonly IIdentityService _identityService;

    public MyController(ApplicationDbContext context, IIdentityService identityService)
    {
        _context = context;
        _identityService = identityService;
    } 

    public async Task<IActionResult> DoSomething()
    {

      var account = await GetAccount(); 

      //do something

      Return Ok();
    }
}

Answer 1

@jonno发布的休息很好，但您需要修改MyController中的构造函数：

public class MyController : BaseController
{
    public MyController(ApplicationDbContext context, IIdentityService identityService)
         :base(conext, identityService)
    {
    }

Answer 2

您的基本控制器可以像删除其他公共呼叫一样，并将2个私有值转换为受保护。因为您正在从MyController扩展BaseController，所以您不需要重新启动值，只需调用它们即可。例如：

BaseController

public class BaseController : Controller
{
    protected readonly ApplicationDbContext _context;
    protected readonly IIdentityService _identityService;

    public BaseController(ApplicationDbContext context, IIdentityService identityService)
    {
        _context = context;
        _identityService = identityService;
    } 

     //reusable methods
     public async Task<Account> GetAccount()
     {
        //code to do something, i.e query database
     }


}

和你的MyController

public class MyController : BaseController
{
    public async Task<IActionResult> DoSomething()
    {

      var account = await GetAccount(); 

      //do something and you can call both _context and _identityService directly in any method in MyController

      Return Ok();
    }
}

如何创建自定义基本控制器？我的代码是对的？

2 个答案: