将 Http 标头添加到 HttpClient

小编典典

将 Http 标头添加到 HttpClient

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在向 Web 服务发送请求之前，我需要将 http 标头添加到 HttpClient。我如何为单个请求执行此操作（而不是在 HttpClient
上对所有将来的请求）？我不确定这是否可能。

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();

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2022-07-18

共1个答案

小编典典

创建一个HttpRequestMessage，将 Method
设置为GET，设置您的标题，然后使用SendAsync而不是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();

2022-07-18