Question

我正在尝试从API代码中点击C#。我无法收到回复并收到状态码＆＃34; 500 - 内部服务器错误＆＃34;。

找到＆＃34; Charset-UTF8＆＃34;正在附加在请求标题中

当我试图在没有＆＃34; Charset-UTF8＆＃34;的情况下点击Fiddler中的API时，我能够在Fiddler和postman中得到答案。使用＆＃34; Charset-UTF8＆＃34;我得到相同的500内部服务器错误。内容类型为application/json。

我甚至尝试了每个charaset编码方法UTF-8,16,32，unicode和C＃代码的默认格式，给出了同样的错误。

请告诉我如何从API请求标题中删除CharSet（附加）。

请查看我附上的代码

HttpClient client1 = new HttpClient();
client1.BaseAddress = new Uri("i have third party url");
client1.DefaultRequestHeaders
    .Accept
    .Add(new MediaTypeWithQualityHeaderValue("application/json"));//ACCEPT header
        client1.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(
            "Basic",
            Convert.ToBase64String(
                System.Text.ASCIIEncoding.ASCII.GetBytes(
                    string.Format("{0}:{1}", userName, password))));

HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Put, client1.BaseAddress);


StringContent content = new StringContent(JsonConvert.SerializeObject("working request"));


request.Content = content;

client1.SendAsync(request)
    .ContinueWith(responseTask =>
    {
        Console.WriteLine("Response: {0}", responseTask.Result);
    });

Answer 1

尝试以下解决方案

content.Headers.Remove("Content-Type"); // "{application/json; charset=utf-8}"
content.Headers.Add("Content-Type", "application/json");

或

content.Headers.ContentType.CharSet = string.Empty;

我已在dotnet/corefx repo上提交了一个问题。

查看https://github.com/dotnet/corefx/issues/25290

经过测试 .NET Core 2.0，.NET Standard 2.0

Answer 2

如果要在请求之外删除客户端请求标头：

myClient.DefaultRequestHeaders.Remove("Connection");
myClient.DefaultRequestHeaders.Add("Connection", "keep-alive");
myClient.DefaultRequestHeaders.Accept.Remove(new MediaTypeWithQualityHeaderValue("application/json"));
myClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

如何删除HttpClient请求标头C＃中的默认字符集

2 个答案: