添加HTTP标头的HttpClient [英] Adding Http Headers to HttpClient

问题描述

所有

我需要的HTTP标头添加到HttpClient的之前，我发送给Web服务的请求。我该怎么做，对于单个请求（而不是在HttpClient的所有将来的请求）？我不知道这甚至有可能。

  VAR的客户=新的HttpClient（）;
VAR任务=
    client.GetAsync（http://www.someURI.com）
    .ContinueWith（（taskwithmsg）= GT;
    {
        VAR响应= taskwithmsg.Result;        VAR jsonTask = response.Content.ReadAsAsync＆LT;＆JSONObject的GT;（）;
        jsonTask.Wait（）;
        VAR的JSONObject = jsonTask.Result;
    }）;
task.Wait（）;
 

解决方案

创建一个的Htt prequestMessage ，设置方法 GET ，设置你的头，然后用 SendAsync 而不是 GetAsync 。

  VAR的客户=新的HttpClient（）;
VAR要求=新的Htt prequestMessage（）{
                                            RequestUri =新的URI（http://www.someURI.com），
                                            方法= HttpMethod.Get，
                                        };
request.Headers.Accept.Add（新MediaTypeWithQualityHeaderValue（text / plain的））;
VAR任务= client.SendAsync（要求）
    .ContinueWith（（taskwithmsg）= GT;
    {
        VAR响应= taskwithmsg.Result;        VAR jsonTask = response.Content.ReadAsAsync＆LT;＆JSONObject的GT;（）;
        jsonTask.Wait（）;
        VAR的JSONObject = jsonTask.Result;
    }）;
task.Wait（）;
 

All:

I need to add http headers to the HttpClient before I send a request to a web service. How do I do that for an individual request (as opposed to on the HttpClient to all future requests)? I'm not sure if this is even possible.

var client = new HttpClient();
var task =
    client.GetAsync("http://www.someURI.com")
    .ContinueWith((taskwithmsg) =>
    {
        var response = taskwithmsg.Result;

        var jsonTask = response.Content.ReadAsAsync<JsonObject>();
        jsonTask.Wait();
        var jsonObject = jsonTask.Result;
    });
task.Wait();

解决方案

Create a HttpRequestMessage, set the Method to GET, set your headers and then use SendAsync instead of GetAsync.

var client = new HttpClient();
var request = new HttpRequestMessage() {
                                            RequestUri = new Uri("http://www.someURI.com"),
                                            Method = HttpMethod.Get,
                                        };
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("text/plain"));
var task = client.SendAsync(request)
    .ContinueWith((taskwithmsg) =>
    {
        var response = taskwithmsg.Result;

        var jsonTask = response.Content.ReadAsAsync<JsonObject>();
        jsonTask.Wait();
        var jsonObject = jsonTask.Result;
    });
task.Wait();

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