模拟远程HTTP的POST请求

建立请求，以模拟远程HTTP的POST请求方式构造并获取处理结果

        /// <summary>
        /// 建立请求，以模拟远程HTTP的POST请求方式构造并获取处理结果
        /// </summary>
        /// <param name="sParaTemp">请求参数数组</param>
        /// <returns>处理结果</returns>
        public string BuildRequest(Dictionary<string, string> sParaTemp,string url,string input_chartset)
        {
            Encoding code = Encoding.GetEncoding(input_chartset);

            //待请求参数数组字符串
            string strRequestData = BuildRequestParaToString(sParaTemp, code);

            //把数组转换成流中所需字节数组类型
            byte[] bytesRequestData = code.GetBytes(strRequestData);

            //构造请求地址
            string strUrl = url;

            //请求远程HTTP
            string strResult = "";
            try
            {
                //设置HttpWebRequest基本信息
                HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(strUrl);
                myReq.Method = "post";
                myReq.ContentType = "application/x-www-form-urlencoded";

                //填充POST数据
                myReq.ContentLength = bytesRequestData.Length;
                Stream requestStream = myReq.GetRequestStream();
                requestStream.Write(bytesRequestData, 0, bytesRequestData.Length);
                requestStream.Close();

                //发送POST数据请求服务器
                HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
                Stream myStream = HttpWResp.GetResponseStream();

                //获取服务器返回信息
                StreamReader reader = new StreamReader(myStream, code);
                StringBuilder responseData = new StringBuilder();
                String line;
                while ((line = reader.ReadLine()) != null)
                {
                    responseData.Append(line);
                }

                //释放
                myStream.Close();

                strResult = responseData.ToString();
            }
            catch (Exception exp)
            {
                strResult = "报错：" + exp.Message;
            }

            return strResult;
        }

        /// <summary>
        /// 生成要请求的参数数组
        /// </summary>
        /// <param name="sParaTemp">请求前的参数数组</param>
        /// <param name="code">字符编码</param>
        /// <returns>要请求的参数数组字符串</returns>
        private string BuildRequestParaToString(Dictionary<string, string> sParaTemp, Encoding code)
        {
            //把参数组中所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串，并对参数值做urlencode
            string strRequestData = CreateLinkStringUrlencode(sParaTemp, code);
            return strRequestData;
        }

        /// <summary>
        /// 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串，并对参数值做urlencode
        /// </summary>
        /// <param name="sArray">需要拼接的数组</param>
        /// <param name="code">字符编码</param>
        /// <returns>拼接完成以后的字符串</returns>
        private string CreateLinkStringUrlencode(Dictionary<string, string> dicArray, Encoding code)
        {
            StringBuilder prestr = new StringBuilder();
            foreach (KeyValuePair<string, string> temp in dicArray)
            {
                prestr.Append(temp.Key + "=" + HttpUtility.UrlEncode(temp.Value, code) + "&");
            }

            //去掉最後一個&字符
            int nLen = prestr.Length;
            prestr.Remove(nLen - 1, 1);

            return prestr.ToString();
        }

调用

        /// <summary>
        /// 查询电子邮件状态
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public ActionResult QueryEmailStatus()
        {
            string responseText = string.Empty;
            try
            {
                #region 调用查询电子邮件状态接口

                string url = "http://localhost/WebAPI/status.aspx";
                string input_chartset="utf-8";
                //构造参数
                Dictionary<string, string> sParaTemp = new Dictionary<string, string>();
                sParaTemp.Add("ManagerLoginName", "XXXXXXX");//API帳號
                sParaTemp.Add("ManagerPassword", "XXXXXXX");//API密碼

                sParaTemp.Add("JobType", "2");//1:簡訊 2:電子郵件
                sParaTemp.Add("LaunchID", "100");//任務編號
                sParaTemp.Add("EmailAddress", "394401333@qq.com");//查詢的對象(收件者信箱)     

                //提交请求，获得返回结果
                responseText = BuildRequest(sParaTemp, url, input_chartset);

                #endregion
            }
            catch (Exception ex)
            {
                throw ex;
                //Log.Error(this.GetType().ToString(), "Exception: " + ex.Message);
            }
            return RedirectToAction("Index", "Demo");
        }