添加项目文件。

SAL_OUTSTOCK/Utils/HttpWebHelper.cs

@@ -0,0 +1,99 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net.Security;
+using System.Net;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+
+namespace SAL_OUTSTOCK.Utils
+{
+    public static class HttpWebHelper
+    {
+        /// <summary>
+        /// post请求
+        /// </summary>
+        /// <param name="url">请求地址</param>
+        /// <param name="postData">请求数据</param>
+        /// <param name="certificate2">证书</param>
+        /// <returns></returns>
+        public static string DoPost(string url, string postData, X509Certificate2 certificate2)
+        {
+            try
+            {
+                string result = string.Empty;
+
+                HttpWebRequest request = null;
+                if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
+                {
+                    request = WebRequest.Create(url) as HttpWebRequest;
+                    ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
+                    request.ProtocolVersion = HttpVersion.Version11;
+                    // 这里设置了协议类型。
+                    ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;// SecurityProtocolType.Tls1.2; 
+                    request.KeepAlive = false;
+                    ServicePointManager.CheckCertificateRevocationList = true;
+                    ServicePointManager.DefaultConnectionLimit = 100;
+                    ServicePointManager.Expect100Continue = false;
+                }
+                else
+                {
+                    request = (HttpWebRequest)WebRequest.Create(url);
+                }
+
+                //string baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
+
+                ////证书
+                //var keystorefile = baseDirectory + @"\bin\ISSUE\testISSUE.pfx";
+                //var key = "123456";
+                //var cer = new X509Certificate2(keystorefile, key);
+
+                if (certificate2 != null)
+                    request.ClientCertificates.Add(certificate2);
+
+                request.Method = "POST";    //使用get方式发送数据
+                request.ContentType = "application/json;charset=utf-8";
+
+                byte[] data = Encoding.UTF8.GetBytes(postData);
+                Stream newStream = request.GetRequestStream();
+                newStream.Write(data, 0, data.Length);
+                newStream.Close();
+
+                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
+                Stream stream = response.GetResponseStream();
+
+                using (StreamReader sr = new StreamReader(stream))
+                {
+                    result = sr.ReadToEnd();
+                }
+                return result;
+            }
+
+            catch (Exception ex)
+            {
+                throw ex;
+            }
+
+        }
+
+        /// <summary>
+        /// post请求
+        /// </summary>
+        /// <param name="url"></param>
+        /// <param name="postData"></param>
+        /// <returns></returns>
+        public static string DoPost(string url, string postData)
+        {
+            return DoPost(url, postData, null);
+        }
+
+        private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
+        {
+            if (errors == SslPolicyErrors.None)
+                return true; //总是接受  
+
+            return false;
+        }
+    }
+}