非控制器的 Net Core 依赖注入 [英] Net Core Dependency Injection for Non-Controller

问题描述

像这样的事情让我如此头疼，这似乎很疯狂.但它是:

Seems crazy that something like this is causing me such a headache. But here it is:

对于非控制器类，如何使用net core的内置依赖注入?请提供包含实例化的示例.

How do you use the built-in dependency injection for net core for a non-controller class? Please provide an example with includes instantiation.

谢谢.

推荐答案

让课程成为一项服务.

在startup.cs中

In startup.cs

services.AddScoped<AccountBusinessLayer>();

然后在控制器中，与您对其他服务所做的一样:

Then in controller, same as you do for other services:

private readonly AccountBusinessLayer _ABL;

像其他服务一样包含在构造函数中:

Include in constructor as you do for other services:

 public AccountController(
    UserManager<ApplicationUser> userManager,
    SignInManager<ApplicationUser> signInManager,IOptions<IdentityCookieOptions> identityCookieOptions,
    IEmailSender emailSender,
    ISmsSender smsSender,
    ILoggerFactory loggerFactory,
    RoleManager<IdentityRole> roleManager,
    AccountBusinessLayer ABL
  )
{
  _userManager = userManager;
  _signInManager = signInManager;
  _externalCookieScheme = identityCookieOptions.Value.ExternalCookieAuthenticationScheme;
  _emailSender = emailSender;
  _smsSender = smsSender;
  _logger = loggerFactory.CreateLogger<AccountController>();
  _roleManager = roleManager;
  _ABL = ABL;
}

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