Question

我在web API中使用自定义oauth进行身份验证。现在我想从MVC控制器调用web api方法。 Web API方法：

public class UserController : ApiController
{
    [Authorize(Roles = "Admin")]
    [HttpPost]
    [ActionName("UserById")]
    public IEnumerable GetUserById(string idValue)
    {
        long ID = idValue != "" ? Convert.ToInt64(idValue) : -1;
        using (var db = new DataModelContext())
        {
            IEnumerable query = (from b in db.User.Include(u => u.EmailAddresses).ToList() 
               where b.Id == ID
               select new { b.Id, UserName = b.UserName, b.EmailAddresses }).ToList();

            return query;
        }
    }
}

MVC控制器：

public class PagesController : Controller
{
    public ActionResult GetUserById(long id)
    {
        string baseUrl = Common.GetAPIUrl();
        HttpClient client = new HttpClient();
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        client.BaseAddress = new Uri(baseUrl);
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", Common.GetoAuth().access_token);

        var values = new JObject();
        values.Add("idValue",id.ToString());

        HttpContent content = new StringContent(values.ToString(), Encoding.UTF8, "application/json");

        HttpResponseMessage response = client.PostAsJsonAsync(baseUrl + "/api/User/UserById", content).Result;

        string resultJSON = response.Content.ReadAsStringAsync().Result;

        return View("UserDetail",resultJson);
    }
}

一些如何不起作用，我无法纠正问题，为什么它不起作用。当我从邮递员调用API直接URL其工作正常。例如http://localhost:55362/api/UserById/2或http://localhost:55362/api/UserById?idvalue=2。它不适用于httpclient调用。

Answer 1

确保您已在webapiconfig.cs文件中启用了CORS。

另外，验证您的路线映射

public static void Register(HttpConfiguration config)
{
            var mvcSiteURL = "Define your MVC site URL here"; //Example: http://localhost:5906

            var cors = new EnableCorsAttribute(mvcSiteURL, "*", "*");
            config.EnableCors(cors);

            routes.MapHttpRoute(
                              name: "ActionApi",
                             routeTemplate: "api/{controller}/{action}/{id}",
                              defaults: new { id = RouteParameter.Optional} );

Answer 2

如果您仍然坚持这个问题，请注意。请执行以下操作以使其正常工作。

WebApiConfig：Action Api应位于控制器Route

之上

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

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

关于Api方法：添加＆＃34; FromBody＆＃34;属性为参数。

[Authorize(Roles = "Admin")]
[HttpPost]
[ActionName("UserById")]
public IEnumerable GetUserById([FromBody]string idValue)
{
    long ID = idValue != "" ? Convert.ToInt64(idValue) : -1;
    using (var db = new DataModelContext())
    {
        IEnumerable query = (from b in db.User.Include(u => u.EmailAddresses).ToList() 
           where b.Id == ID
           select new { b.Id, UserName = b.UserName, b.EmailAddresses }).ToList();

        return query;
    }
}

让我知道这是否有效

通过传递oauth标记和参数

2 个答案: