ASP.Net 使用参数发布时 WebApi 404 错误

Question

我正在学习网络 api，很努力 - 我遇到了障碍。当 api 上的方法中没有参数时，我可以 post 很好地得到响应，例如这有效...

客户端

using (var client = new HttpClient())
{
    client.DefaultRequestHeaders.Add("Authorization", "Bearer " + T.Access_Token);
    var req = new HttpRequestMessage(HttpMethod.Post, "https://baseurl/api/controller/sites");
    var response = await client.SendAsync(req);

    if (response.IsSuccessStatusCode)
    {
         string result = await response.Content.ReadAsStringAsync();

         List<Site_2016> sites = Library.Data.Json.FromJson<List<Site_2016>>(result);

         return sites;
    }
    else return new List<Site_2016>();
}

Api

    [HttpPost]
    [Route("sites")]
    public async Task<IHttpActionResult> GetSites()
    {

        //Do stuff
        return Ok(Sites);

    }

但是当我像这样传递一些参数时，我一辈子都无法让它工作...

客户端

using (var client = new HttpClient())
{
        Dictionary<String, String> dict = new Dictionary<string, string>();
        dict.Add("identifier", instance);
        dict.Add("endOfDay", IsEndOfDayOnly.ToString());

        var content = new FormUrlEncodedContent(dict);
        client.BaseAddress = new Uri("https://baseurl/");
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded"));
        client.DefaultRequestHeaders.Add("Authorization", "Bearer " + T.Access_Token);

        var response = await client.PostAsync("api/controller/lastsaledate", content);

        if (response.IsSuccessStatusCode)
        {
            string result = await response.Content.ReadAsStringAsync();

            KeyValuePair<String, DateTime> LastPush = Library.Data.Json.FromJson<KeyValuePair<String, DateTime>>(result);

            return LastPush;
        }
        else
        {
            return new KeyValuePair<string, DateTime>();
        }
    }

Api

    [HttpPost]
    [Route("lastsaledate")]
    public async Task<IHttpActionResult> GetLastSalesUpdate(string identifier, bool endOfDay)
    {
        //do stuff
        return Ok(Result);
    }

响应returns 404，我正在徘徊是否可能是路由问题？不记名令牌对两个 post 都有效，如果我禁用授权，那么我会得到相同的结果。 api/controller/actionurl绝对正确

Answer 1

是的，在这种情况下，您可以试试这个

var response = await client.PostAsync(string.format("api/controller/lastsaledate?identifier={0}&endOfDay{1}",instance,IsEndOfDayOnly), content);

并删除 dict

或者你可以试试这个

[HttpPost]
    [Route("lastsaledate")]
    public async Task<IHttpActionResult> GetLastSalesUpdate([FromBody]string identifier, [FromBody]bool endOfDay)
    {
        //do stuff
        return Ok(Result);
    }

或者你可以试试这个

[HttpPost]
        [Route("lastsaledate")]
        public async Task<IHttpActionResult> GetLastSalesUpdate(testClass myParam)
        {
            //do stuff
            return Ok(Result);
        }

public class testClass
{
   public string identifier;
   public bool endOfDay;
}

ASP.Net 使用参数发布时 WebApi 404 错误

ASP.Net WebApi 404 Error when posting with parameters

c#

asp.net

asp.net-web-api

asp.net-web-api-routing

asp.net-web-api2