.NET HttpClient扩展

    /// <summary>
    /// HttpClient扩展类
    /// </summary>
    public static class HttpClientExtensions
    {
        /// <summary>
        /// HttpClient请求封装
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <typeparam name="TResult"></typeparam>
        /// <param name="method"></param>
        /// <param name="url"></param>
        /// <param name="sendContent"></param>
        /// <returns></returns>
        public static async Task<ResultInfo<TResult>> RequestAsync<T, TResult>(this HttpClient client, HttpMethod method, string url, T sendContent = default(T))
        {
            HttpRequestMessage requestMessage = new HttpRequestMessage(method, url)
            {
                Content = method == HttpMethod.Get ? null : new ObjectContent<T>(sendContent, new JsonMediaTypeFormatter())
            };
            var response = await client.SendAsync(requestMessage);
            if (response.IsSuccessStatusCode)
            {
                var content = await response.Content.ReadAsAsync<TResult>();

                return new ResultInfo<TResult>(true, "请求成功")
                {
                    Data = content
                };
            }
            else
            {
                var error = await response.Content.ReadAsAsync<HttpError>();

                return new ResultInfo<TResult>(false, error.Message);
            }
        }
    }