GetAsync 是对应于 HTTP 的四个动词的四种方法之一（其他方法是 PostAsync、PutAsync 和 DeleteAsync）。
由于使用的是单例,所以不要使用HttpClient.Defaultrequestheheaders用于每个请求需要应用的标头。它不是线程安全的。这也是为什么你取而代之使用HttpRequestMessage.Headers来设置头部信息的原因。 其次,你需要搭配使用HttpClient.SendAsync()来发送请求,因为在GetAsync() / PostAsync()中没有重载的方法可以使用HttpRequestM...
var fileExtension = Path.GetExtension(files.FileName);//获取文件格式,拓展名 var result = HttpClientHelper._.HttpClientPost("https://localhost:44347/FileUpload/SingleFileUpload", fileBytes, fileExtension, files.FileName); var resultObj = JsonConvert.DeserializeObject<UploadReponse>(result); if (result...
图片文件二进制字节fileContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data"){Name = "file",FileName = fileName};byteArrayContents.Add(fileContent);var content = new MultipartFormDataContent();//将ByteArrayContent集合加入到MultipartFormDataContent中foreach (var byteArrayConte...
c.DefaultRequestHeaders.Accept .Add(new MediaTypeWithQualityHeaderValue("application/json")); })... // 产生命名HttpClient,发起请求 var client = _clientFactory.CreateClient("platform"); var response = await client.PostAsync($"open-api/v1/user-token/info?{req.AuthString()}",new StringContent...
httpClient.DefaultRequestHeaders.Add("hostname", Apic.IP); httpClient.DefaultRequestHeaders.Add("hostType","PC");varhttpResponse = httpClient.PostAsync(url +"/"+ api +"/auth/login", content); responseContent =awaithttpResponse.Result.Content.ReadAsStringAsync(); ...
c.DefaultRequestHeaders.Accept .Add(new MediaTypeWithQualityHeaderValue("application/json")); })... // 产生命名HttpClient,发起请求 var client = _clientFactory.CreateClient("platform"); var response = await client.PostAsync($"open-api/v1/user-token/info?{req.AuthString}",new StringContent(re...
GETHttpClient.GetStreamAsync GETHttpClient.GetStringAsync POSTHttpClient.PostAsync PUTHttpClient.PutAsync PATCHHttpClient.PatchAsync DELETEHttpClient.DeleteAsync †USER SPECIFIEDHttpClient.SendAsync †USER SPECIFIED请求指示SendAsync方法接受任何有效的HttpMethod。
The PostAsync andPutAsyncmethods only allow setting a limited number of HTTP content headers. In contrast, theSendRequestAsyncmethod allows setting headers on the request message as well as on the HTTP content to be sent. Below are the exceptions that this function throws. ...
ContentType {text/plain; charset=utf-8} System.Net.Http.Headers.MediaTypeHeaderValue So the error makes sense, however, I do tell it to use JSON, and it work as intended in my POST-method with the same code: public async Task UpdateToGraph(object UnSerializedContent,...