c# - 找不到 ApiController

Question

基于此视频 https://www.youtube.com/watch?v=IVvJX4CoLUY我添加了 using System.Web; using System.Web.Http; 但我仍然得到无法找到 apicontroller 的错误状态，依此类推，下图是我遇到的错误:

下面是我的代码:

using System;
using System.Linq;
using System.Threading.Tasks;
using System.Web;
using System.Web.Http;
using System.Collections.Generic;


namespace UploadToServer.Server.Controllers
{
public class UploadsController : ApiController
{
    [Route("api/Files/Upload")]
    public async Task<string> Post()
    {
        try
        {
            var httpRequest = HttpContext.Current.Request;

            if (httpRequest.Files.Count > 0)
            {
                foreach (string file in httpRequest.Files)
                {
                    var postedFile = httpRequest.Files[file];

                    var fileName = postedFile.FileName.Split('\\').LastOrDefault().Split('/').LastOrDefault();

                    var filePath = HttpContext.Current.Server.MapPath("~/Uploads/" + fileName);

                    postedFile.SaveAs(filePath);

                    return "/Uploads/" + fileName;
                }
            }
        }
        catch (Exception exception)
        {
            return exception.Message;
        }

        return "no files";
    }
}

谁能分享我的想法？

Answer 1

您在项目中缺少对这些库的引用。根据 svdoever您可以通过 NuGet 添加包 Microsoft.AspNet.WebApi 来解决这个问题。有关如何使用 NuGet 的说明，请单击 here