调用razor页面中的接口方法会抛出未处理的异常

Question

未处理的异常呈现组件:

不能为类型Inventory_Management.Client.Pages.Authentication.Login的属性_accountService提供值。无Inventory_Management.Shared.Services.AccountService类型的注册服务。

AccountService.cs

public interface IAccountService
{
Task<IResult> Login(Identity model);
}
public class AccountService : IAccountService
{
public async Task<IResult> Login(Identity model){}
}

login.razor

@inject IAccountService _accountService;
<div></div>
@code{
private async Task Submit()
{
var result = await _accountService.Login(userlogin); // Unhandled exception
}
}

遵循Github示例，它在启动类中没有任何作用域。https://github.com/iammukeshm/CleanArchitecture.WebApi。

引用

Client-> Pages-> Authentication-> Login.razor.cs
Infrastructure-> Identity-> Authentication->IAuthenticationManager
Server-> Extensions -> ServiceCollectionExtension.cs
startup.cs -> services.AddServerLocalization();

Answer 1

你需要在Startup类的ConfigureServices方法中注册你的具体类。

public void ConfigureServices(IServiceCollection services){
services.AddScoped<IAccountService, AccountService>();
}

Answer 2

您需要注册IAccountService(在您试图遵循的示例中-参见ServiceExtensions.AddIdentityInfrastructure并在Startup类中调用它)，例如;

services.AddScoped<IAccountService, AccountService>(); // also you should register all AccountService's dependencies

然后解析接口，而不是实现:

@inject IAccountService _accountService;
<div></div>
@code{
private async Task Submit()
{
var result = await _accountService.Login(userlogin); // Unhandled exception
}
}