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HttpClient 未在 .Net Core 3.1 中发送授权承载令牌

我有一个 ASP.NET Core MVC 应用程序,它使用 HttpClient 调用 ASP.NET Core WebApi,但我必须发送授权标头,问题是我的 HttpClient 不会发送授权标头。

我有一个调用具有以下构造函数的 webapi 的服务:

        public ApiService(HttpClient httpClient, IHttpContextAccessor accessor)
        {
            string token = accessor.HttpContext.User.FindFirstValue("JWToken"); // gets user token
            httpClient.BaseAddress = new Uri(AppSettings.BaseUrlApi); //sets the base URL of the webapi
            httpClient.DefaultRequestHeaders.Add("Accept", "application/json");
            httpClient.Timeout = TimeSpan.FromMinutes(1);
            httpClient.DefaultRequestHeaders.Authorization
                         = new AuthenticationHeaderValue("Bearer", token);

            _httpClient = httpClient; // assigns to a private property "private readonly HttpClient _httpClient;"
        }
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然后,当我将数据发布到 webapi 时,我使用以下方法:

        public async Task<User> PostAsync(string url, User user)
        {
            StringContent jsonContent = new StringContent( …
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c# asp.net asp.net-web-api

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