.NET-Core 3 MVC控制器Url.Action返回null

Question

我的控制器具有以下功能。我正在尝试让“ MethodAsync”为“ CallbackAsync”方法创建一个回调URL。

对于thirdPartyCallbackUrl 0到3，我得到了正确的URL。但是，对于4到7，我得到一个空值。我不知道发生了什么。

    [Route("auth")]
    [ApiController]
    public class AuthController : Controller
    {
        [HttpGet("othermethod")]
        public async Task<IActionResult> OtherMethod()
        {
            return Ok();
        }

        [HttpGet("third-party-callback")]
        public async Task<IActionResult> CallbackAsync()
        {
            return Ok();
        }

        [HttpPost("third-party-login/{loginType}")]
        public async Task<IActionResult> MethodAsync()
        {
            string thirdPartyCallbackUrl = Url.ActionLink(action: nameof(CallbackAsync));
            string thirdPartyCallbackUrl1 = Url.ActionLink(action: nameof(CallbackAsync), controller: "Auth");
            string thirdPartyCallbackUrl2 = Url.ActionLink(action: "CallbackAsync", controller: "Auth");
            string thirdPartyCallbackUrl3 = Url.ActionLink(action: "CallbackAsync");
            string thirdPartyCallbackUr4 = Url.ActionLink(action: nameof(OtherMethod));
            string thirdPartyCallbackUrl5 = Url.ActionLink(action: nameof(OtherMethod), controller: "Auth");
            string thirdPartyCallbackUrl6 = Url.ActionLink(action: "OtherMethod", controller: "Auth");
            string thirdPartyCallbackUrl7 = Url.ActionLink(action: "OtherMethod");

            ...
        }
    }

Answer 1

原来，我的“ CallbackAsync”方法的“ Async”后缀有问题。我一放下，一切就正常了。