HttpClient未向NancyFX端点发送post数据

using System;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        // 创建HttpClient实例
        using (HttpClient client = new HttpClient())
        {
            // 设置请求地址
            string url = "http://example.com/api/endpoint";

            // 创建要发送的数据
            var data = new { key1 = "value1", key2 = "value2" };

            // 将数据序列化为JSON字符串，并创建StringContent对象
            var content = new StringContent(JsonConvert.SerializeObject(data), Encoding.UTF8, "application/json");

            try
            {
                // 发送POST请求，并等待响应
                HttpResponseMessage response = await client.PostAsync(url, content);

                // 处理响应
                if (response.IsSuccessStatusCode)
                {
                    // 获取响应内容
                    string responseContent = await response.Content.ReadAsStringAsync();
                    Console.WriteLine("响应内容：" + responseContent);
                }
                else
                {
                    Console.WriteLine("请求失败，状态码：" + response.StatusCode);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("发生异常：" + ex.Message);
            }
        }
    }
}