如何设置HttpClient请求的Content-Type标头？

问题：

I'm trying to set the Content-Type header of an HttpClient object as required by an API I am calling. 我正在尝试根据我正在调用的API设置HttpClient对象的Content-Type标头。

I tried setting the Content-Type like below: 我尝试如下设置Content-Type ：

using (var httpClient = new HttpClient())
{
    httpClient.BaseAddress = new Uri("http://example.com/");
    httpClient.DefaultRequestHeaders.Add("Accept", "application/json");
    httpClient.DefaultRequestHeaders.Add("Content-Type", "application/json");
    // ...
}

It allows me to add the Accept header but when I try to add Content-Type it throws the following exception: 它允许我添加Accept标头，但是当我尝试添加Content-Type它将引发以下异常：

Misused header name. 标头名称滥用。 Make sure request headers are used with HttpRequestMessage , response headers with HttpResponseMessage , and content headers with HttpContent objects. 确保HttpRequestMessage使用请求标头， HttpResponseMessage使用响应标头， HttpContent对象使用内容标头。

How can I set the Content-Type header in a HttpClient request? 如何在HttpClient请求中设置Content-Type标头？

解决方案：

参考一： https://stackoom.com/question/io9O/如何设置HttpClient请求的Content-Type标头
参考二： https://oldbug.net/q/io9O/How-do-you-set-the-Content-Type-header-for-an-HttpClient-request

来源：oschina

链接：https://my.oschina.net/u/3797416/blog/4341457

标签

httpclient