添加HTTP标头的HttpClient

本文介绍了添加HTTP标头的HttpClient的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 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（www.someURI）    .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（www.someURI），                                            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("www.someURI") .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("www.someURI"), 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();