using System.Text;
using System.Net;
using System.IO;
using System;
using System.Net.Http;
using System.Net.Http.Headers;

namespace Epost.Common
{
   
    #region HttP
    /// <summary>
    /// HttP
    /// </summary>
    public class HttpHelper
    {
        private static object lockobj = new object();
        #region 模拟Http Post请求-电子标签
        /// <summary>
        /// 模拟Http Post请求
        /// </summary>
        /// <param name="Url"></param>
        /// <param name="postDataStr"></param>
        /// <returns></returns>
        public static string HttpPost(string Url, string postDataStr = "")
        {
            try
            {
                HttpClient httpClient = new HttpClient();
                HttpContent httpContent = new StringContent(postDataStr);
                httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                var events = httpClient.PostAsync(Url, httpContent).Result;
                //  var result = events.Content.ReadAsStringAsync().Result;
                httpClient.Dispose();
                httpContent.Dispose();
                events.Dispose();
                return events.StatusCode.ToString();
            }
            catch (Exception ex)
            {
                LogHelper.WriteLogInfo("post请求：" + ex.Message);
                return "Fail";
            }


        }
        #endregion

        #region 模拟Http Post请求
        /// <summary>
        /// 模拟Http Post请求
        /// </summary>
        /// <param name="Url"></param>
        /// <param name="postDataStr"></param>
        /// <returns></returns>
        public  string HttpPost_Old(string Url, string postDataStr = "")
        {

            try
            {

                ServicePointManager.Expect100Continue = false;
                byte[] byteArray = Encoding.UTF8.GetBytes(postDataStr);
                CookieContainer cookie = new CookieContainer();
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
                request.Method = "POST";
                // request.ContentType = "application/x-www-form-urlencoded";    
                request.ContentType = "application/json";
                request.ContentLength = byteArray.Length;
                request.CookieContainer = cookie;
                Stream myRequestStream = request.GetRequestStream();
                myRequestStream.Write(byteArray, 0, byteArray.Length);
                myRequestStream.Close();
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                response.Cookies = cookie.GetCookies(response.ResponseUri);
                Stream myResponseStream = response.GetResponseStream();
                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
                string retString = myStreamReader.ReadToEnd();
              
                myStreamReader.Close();
                myResponseStream.Close();
                return retString;
            }
            catch (Exception e)
            {
               
                LogHelper.WriteLogInfo("post失败" + e.Message);
                return "Fail";
            }


        }
        #endregion

        #region 模拟Http Get请求
        /// <summary>
        /// 模拟Http Get请求
        /// </summary>
        /// <param name="Url"></param>
        /// <param name="postDataStr"></param>
        /// <returns></returns>
        public static string HttpGet(string Url, string postDataStr)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
            request.Method = "GET";
            request.ContentType = "text/html;charset=UTF-8";
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();
            return retString;
        }
        #endregion

        /// <summary>
        /// HTTP GET方式请求数据.
        /// </summary>
        /// <param name="url">URL.</param>
        /// <returns></returns>
        public static string HttpGet(string url)
        {
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.Method = "GET";
            request.ContentType = "application/json";
            request.Accept = "*/*";
            request.Timeout = 15000;
            request.AllowAutoRedirect = false;
            WebResponse response = null;
            string responseStr = null;
            try
            {
                response = request.GetResponse();

                if (response != null)
                {
                    StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                    responseStr = reader.ReadToEnd();
                    reader.Close();
                }
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                request = null;
                response = null;
            }
            return responseStr;
        }




    }
    #endregion
}