添加项目文件。

Common/HttpHelper.cs

@@ -0,0 +1,160 @@
+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
+}