使用 webrequest 时如何保持连接？

Question

string strURL = (Request.IsSecureConnection ? "https://website.com/Transaction.asmx" : "http://website.com/wTransaction.asmx");

string strCommand = clsMisc.strGetDataFromPage(this, "c", "", PostMethod.BOTH); string strAppCode = clsMisc.strGetDataFromPage(this, "a", "WEBIN", PostMethod.BOTH); string strVenueCode = clsMisc.strGetDataFromPage(this, "v", "", PostMethod.BOTH); long transcationid= long.Parse(clsMisc.strGetDataFromPage(this, "t", "0", PostMethod.BOTH)); 字符串 strParam1 = clsMisc.strGetDataFromPage(this, "p1", "", PostMethod.BOTH); string strParam2 = clsMisc.strGetDataFromPage(this, "p2", "", PostMethod.BOTH); 字符串 strParam3 = clsMisc.strGetDataFromPage(this, "p3", "", PostMethod.BOTH); 字符串 strParam4 = clsMisc.strGetDataFromPage(this, "p4", "", PostMethod.BOTH);

            StringBuilder sbrPost = new StringBuilder();

            string strIPAddress = Request.UserHostAddress.ToString();
            if (Request.Headers.ToString().Contains("&X-Forwarded-For="))
            {
                strIPAddress = Request.Headers["X-Forwarded-For"].ToString();
            }
            strAppCode = "|APPCODE=" + strAppCode + "|IPADDRESS=" + strIPAddress + "|";

            //strAppCode = "|APPCODE=" + strAppCode + "|IPADDRESS=" + Request.UserHostAddress.ToString() + "|";

            sbrPost.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
            sbrPost.Append("<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\"><soap12:Body><objExecute xmlns=\"http://www.website.com/\">");
            sbrPost.Append("<strAppCode>" + strAppCode + "</strAppCode>");
            sbrPost.Append("<lngTransactionIdentifier>" + lngTransId + "</lngTransactionIdentifier>");
            sbrPost.Append("<strCommand>" + strCommand + "</strCommand>");
            sbrPost.Append("<strParam1>" + strParam1 + "</strParam1>");
            sbrPost.Append("<strParam2>" + strParam2 + "</strParam2>");
            sbrPost.Append("<strParam3>" + strParam3 + "</strParam3>");
            sbrPost.Append("<strParam4>" + strParam4 + "</strParam4>");
           </objExecute></soap12:Body></soap12:Envelope>");
            string strPost = sbrPost.ToString();

            WebRequest objReq = WebRequest.Create(strURL);
            WebResponse objRes;
            StreamReader smrRes;

            byte[] bytData = Encoding.UTF8.GetBytes(strPost);
            objReq.Method = "POST";
            objReq.ContentType = "application/soap+xml";
            objReq.ContentLength = bytData.Length;
            objReq.Timeout = 600000; // 10 minutes
            Stream objPost = objReq.GetRequestStream();
            objPost.Write(bytData, 0, bytData.Length);
            objPost.Close();
            objRes = objReq.GetResponse();
            smrRes = new StreamReader(objRes.GetResponseStream());
            Response.Write(smrRes.ReadToEnd());
            Response.ContentType = "text/xml";
            smrRes.Close();
            Response.End();
        }
        catch (Exception err)
        {
            clsLog.blnLogError(strErrorPage,strErrorMethod, "",err.Message);
        }
    }  

我在 da line objPost.Close();.....不寻常的错误是，当我在 Visual Studio 2010 中使用 F10 缓慢地逐行调试此代码时......代码可以工作......但是当我只是运行程序，甚至快速调试程序...它在那一行抛出一个错误..它给出一个错误，表明预期打开的连接已被服务器关闭..HELLLLPPP

！

Answer 1

如果您在调试时认为它工作正常，请尝试 Thread.Sleep(10000)。