C# HttpClient PutAsync 不向 api 发送参数
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HttpClient PutAsync doesn't send a parameter to api
提问by fcmaine
On the controller Put is as following:
在控制器上放置如下：
[HttpPut]
[ActionName("putname")]
public JsonResult putname(string name)
{
var response = ...
return Json(response);
}
The issue is on the when consuming this API via following
问题在于通过以下方式使用此 API 时
using (httpClient = new HttpClient())
{
string name = "abc";
string jsonString = JsonConvert.SerializeObject(name);
var requestUrl = new Uri("http:...../controller/putname/");
using (HttpContent httpContent = new StringContent(jsonString))
{
httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
HttpResponseMessage response = httpClient.PutAsync(requestUrl, httpContent).Result;
}
This code doesn't pass the parameter name to controller. I even tried changeing uri to /putname/" + name.
此代码不会将参数名称传递给控制器。我什至尝试将 uri 更改为 /putname/" + name。
采纳答案by Stan Bashtavenko
Here is what works for me:
以下是对我有用的方法：
var jsonString = "{\"appid\":1,\"platformid\":1,\"rating\":3}";
var httpContent = new StringContent(jsonString, Encoding.UTF8, "application/json");
var message = await _client.PutAsync(MakeUri("App/Rate"), httpContent);
Assert.AreEqual(HttpStatusCode.NoContent, message.StatusCode);
and my action method:
和我的行动方法：
public void PutRate(AppRating model)
{
if (model == null)
throw new HttpResponseException(HttpStatusCode.BadRequest);
if (ModelState.IsValid)
{
// ..
}
}
and the model
和模型
public class AppRating
{
public int AppId { get; set; }
public int PlatformId { get; set; }
public decimal Rating { get; set; }
}
-Stan
-斯坦
回答by Pablo
For me it worked correctly:
对我来说它工作正常：
string requestUrl = endpointUri + "/Files/";
var jsonString = JsonConvert.SerializeObject(new { name = "newFile.txt", type = "File" });
HttpContent httpContent = new StringContent(jsonString);
httpContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue ("application/json");
HttpClient hc = new HttpClient();
//add the header with the access token
hc.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);
//make the put request
HttpResponseMessage hrm = (await hc.PostAsync(requestUrl, httpContent));
if (hrm.IsSuccessStatusCode)
{
//stuff
}
