Question

我有一个向用户发送电子邮件的报告（因为创建需要一些时间。）我无法调用Web方法并传递viewmodel。

这是WebApi控制器：

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace RecognitionsMVC.Controllers
{
    public class WebAPIController : ApiController
    {
        [ActionName("Post")]
        public static void GetAllRecognitionsBySupervisorAll([FromUri]ViewModels.AllRecognitionsbyAllSupervisors AllRByAllS)
        {
            DataSet ds = Classes.Recognitions.GetAllRecognitionsBySupervisorAll(AllRByAllS.BeginDate, AllRByAllS.EndDate, AllRByAllS.RecognizedOrSubmitted);
            Classes.DataHelper.SendMeExcelFile(ds, "GetAllRecognitionsBySupervisorAll", AllRByAllS.AuthenticatedUser);
        }

    }
}

这是我正在使用的视图模型：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RecognitionsMVC.ViewModels
{
    public class AllRecognitionsbyAllSupervisors
    {
        public DateTime BeginDate { get; set; }
        public DateTime EndDate { get; set; }
        public string AuthenticatedUser { get; set; }
        public bool RecognizedOrSubmitted { get; set; }

        public AllRecognitionsbyAllSupervisors(DateTime BeginDate, DateTime EndDate, string AuthenticatedUser, bool RecognizedOrSubmitted)
        {
            this.BeginDate = BeginDate;
            this.EndDate = EndDate;
            this.AuthenticatedUser = AuthenticatedUser;
            this.RecognizedOrSubmitted = RecognizedOrSubmitted;
        }

    }

}

这是测试控制器我试图调用WebAPI控制器并传递视图模型：

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace RecognitionsMVC.Controllers
{
    public class TestController : Controller
    {
        // GET: Test
        public ActionResult Index()
        {
            DateTime BeginDate = new DateTime(2015, 1, 1);
            DateTime EndDate = new DateTime(2015, 12, 31);
            string AuthenticatedUser = "123473306";
            bool RecognizedOrSubmitted = true;

            string VPath = "api/WebAPI/GetAllRecognitionsBySupervisorAll";
            ViewModels.AllRecognitionsbyAllSupervisors  AllRByAllS = new ViewModels.AllRecognitionsbyAllSupervisors(BeginDate, EndDate, AuthenticatedUser, RecognizedOrSubmitted);
            return View(VPath, AllRByAllS);

      }
    }
}

最后，这是App_Start文件夹中的WebApiConfig.cs：

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

namespace RecognitionsMVC
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // TODO: Add any additional configuration code.

            // Web API routes
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional , action = "DefaultAction"}
            );

            // WebAPI when dealing with JSON & JavaScript!
            // Setup json serialization to serialize classes to camel (std. Json format)
            var formatter = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
            formatter.SerializerSettings.ContractResolver =
                new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver();

        }
    }
}

错误表示无法找到api，并且似乎在查看所有视图文件夹而不是WebAPI控制器。如何调用WebAPI方法并传递视图模型？

Answer 1

在您的控制器中，您可以使用HttpClient来呼叫网络API。

public class TestController : Controller
{
    // GET: Test
    public async Task<ActionResult> Index()
    {
        DateTime BeginDate = new DateTime(2015, 1, 1);
        DateTime EndDate = new DateTime(2015, 12, 31);
        string AuthenticatedUser = "123473306";
        bool RecognizedOrSubmitted = true;

        string VPath = "api/WebAPI/GetAllRecognitionsBySupervisorAll";
        ViewModels.AllRecognitionsbyAllSupervisors  AllRByAllS = new ViewModels.AllRecognitionsbyAllSupervisors(BeginDate, EndDate, AuthenticatedUser, RecognizedOrSubmitted);

        var baseUrl = new Uri("http://localhost:1234/");//Replace with api host address 
        var client = new HttpClient();//Use this to call web api
        client.BaseAddress = baseUrl;

        //post viewmodel to web api using this extension method
        var response = await client.PostAsJsonAsync(VPath, AllRByAllS);

        return View();

  }
}

您的Web Api也需要更改才能从正文中获取视图模型。

public class WebAPIController : ApiController
{
    [HttpPost]
    [ActionName("Post")]
    public static void GetAllRecognitionsBySupervisorAll([FromBody]ViewModels.AllRecognitionsbyAllSupervisors AllRByAllS)
    {
        DataSet ds = Classes.Recognitions.GetAllRecognitionsBySupervisorAll(AllRByAllS.BeginDate, AllRByAllS.EndDate, AllRByAllS.RecognizedOrSubmitted);
        Classes.DataHelper.SendMeExcelFile(ds, "GetAllRecognitionsBySupervisorAll", AllRByAllS.AuthenticatedUser);
    }

}

Answer 2

我认为WebAPIController中的GetAllRecognitionsBySupervisorAll不允许是静态的。当您将其标记为静态时，将无法找到它，因此请尝试删除“静态”。

如何从控制器

2 个答案: