Question

我已按照以下帖子中提到的解决方案，使用ASP.Net Core实现了Web API的令牌身份验证 Token Based Authentication in ASP.NET Core

为了实现身份验证逻辑，我已经定义了以下方法

public async Task<bool> AuthenticateUser(string email, string password)
{
    UserManager<ApplicationUser> _userManager = HttpContext.ApplicationServices.GetService(typeof(UserManager<ApplicationUser>)) as UserManager<ApplicationUser>;
    SignInManager<ApplicationUser> _signInManager = HttpContext.ApplicationServices.GetService(typeof(SignInManager<ApplicationUser>)) as SignInManager<ApplicationUser>;

    var result = await _signInManager.PasswordSignInAsync(email, password, isPersistent: false, lockoutOnFailure: false);

    if (result.Succeeded)
    {                
        return true;
    }
    else
    {
        return false;
    }
}

并且调用Post方法是

[HttpPost]        
public dynamic Post([FromBody] AuthRequest req)
{
string email = req.username;
string password = req.password;

try
{
    bool isAuthenticated = false; 

    //implement the authentication logic over here
    isAuthenticated = AuthenticateUser(email, password).Result;

    if (isAuthenticated)
    {
        DateTime? expires = DateTime.UtcNow.AddDays(2);
        var token = GetToken(req.username, expires);
        return new { authenticated = true, entityId = 1, token = token, tokenExpires = expires };
    }
}
catch (Exception ex)
{
    return new { authenticated = false, message = "Exception: " +  ex.Message, detailedmessage = ex.InnerException};
}

return new { authenticated = false };
}

现在问题......

Post在第一次调用时执行正常并返回所需的结果，但是，在第二次调用时，它会抛出异常

没有配置身份验证处理程序来处理该方案：Microsoft.AspNet.Identity.Application

在调试时，我发现在执行以下行时抛出了这个异常

var result = await _signInManager.PasswordSignInAsync(email, password, isPersistent: false, lockoutOnFailure: false);

第一次调用时工作正常，但在所有后续调用中抛出异常。

过去2天我一直在搜索此问题，我发现在Startup.cs app.UseIdentity（）;应该在添加身份验证中间件之前调用。它已经在我的代码中发生了。

请建议我在这里缺少什么。

Web API令牌身份验证抛出异常未配置身份验证处理程序来处理该方案：Microsoft.AspNet.Identity.Application

0 个答案: