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c# - 从 asp.net c# 中的服务器错误接收结果时发生传输级错误

转载 作者：行者123 更新时间：2023-12-03 09:23:00 28 4
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如何解决以下错误

"A transport-level error has occurred when receiving results from the server. (provider: Session Provider, error: 19 - Physical connection is not usable)"

这是我的 web.config 代码:

<?xml version="1.0" encoding="UTF-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <appSettings>
    <add key="ChartImageHandler" value="storage=file;timeout=20;" />
  </appSettings>
  <connectionStrings>
    <add name="paconn" connectionString="Data Source=XYZ-PC;Initial Catalog=crm;MultipleActiveResultSets=True;User ID=sa;Password=xyz@123" providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.web>
    <httpRuntime executionTimeout="60000" />
    <customErrors mode="Off" />
    <httpHandlers>
      <add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" />
    </httpHandlers>
    <pages>
      <controls>
        <add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting" assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </controls>
    </pages>
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      </assemblies>
    </compilation>
    <authentication mode="Forms">
      <forms loginUrl="~/Account/Login.aspx" timeout="2880" />
    </authentication>
    <membership>
      <providers>
        <clear />
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
      </providers>
    </membership>
    <profile>
      <providers>
        <clear />
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" />
      </providers>
    </profile>
    <roleManager enabled="false">
      <providers>
        <clear />
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>
  </system.web>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
    <validation validateIntegratedModeConfiguration="false" />
    <handlers>
      <remove name="ChartImageHandler" />
      <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </handlers>
    <directoryBrowse enabled="false" />
    <defaultDocument>
      <files>
                <clear />
                <add value="Default.asp" />
                <add value="Default.htm" />
                <add value="index.htm" />
                <add value="index.html" />
                <add value="iisstart.htm" />
                <add value="default.aspx" />
                <add value="index.php" />
      </files>
    </defaultDocument>
  </system.webServer>
</configuration>

以及我的引发错误的 C# 代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;

public partial class autorefresh_create_emi : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["paconn"].ToString());
        con.Open();

        SqlCommand com1 = new SqlCommand("select max(f_casenum) from c_detail", con);
        string check_max = com1.ExecuteScalar().ToString();

        if (check_max == "0")
        {
        }
        else
        {
            string st_id = "";
            Int64 st = 0;
            string max_id = "";
            Int64 en = 0;

            SqlCommand com2 = new SqlCommand("select top 1(f_casenum) from c_emi where f_casenum not in (select top 1 (f_casenum) from c_detail order by f_casenum) order by f_casenum", con);
            st_id = com2.ExecuteScalar().ToString();
            st_id = st_id.Substring(2);
            st = Convert.ToInt64(st_id);

            max_id = check_max;
            max_id = max_id.Substring(2);
            en = Convert.ToInt64(max_id);

            for (Int64 i = st; i <= en; i++)
            {
                string f_casenum = "PA" + i;
                string c_status = "";
                string f_tenure = "";

                SqlCommand com3 = new SqlCommand("select * from c_detail where f_casenum=@f_casenum", con);
                com3.Parameters.AddWithValue("@f_casenum", f_casenum);

                SqlDataReader reader3 = com3.ExecuteReader();
                if (reader3.Read())
                {
                    f_tenure = reader3["f_tenure"].ToString().Trim();
                    c_status = reader3["c_status"].ToString();
                }

                if (c_status == "Full Paid")
                {
                }
                else
                {
                    string row_check = "";
                    SqlCommand com4 = new SqlCommand("select count(f_invoice) from c_emi where f_casenum=@f_casenum", con);
                    com4.Parameters.AddWithValue("@f_casenum", f_casenum);
                    row_check = com4.ExecuteScalar().ToString().Trim();

                    if (f_tenure.Equals(row_check))
                    {
                    }
                    else
                    {
                        string st_id_invoice = "";
                        Int64 st_invoice = 0;
                        string max_id_invoice = "";
                        Int64 en_invoice = 0;

                        SqlCommand com5 = new SqlCommand("select min(f_invoice) from c_emi where f_casenum=@f_casenum", con);
                        com5.Parameters.AddWithValue("@f_casenum", f_casenum);
                        st_id_invoice = com5.ExecuteScalar().ToString();

                        st_id_invoice = st_id_invoice.Substring(3);
                        st_invoice = Convert.ToInt64(st_id_invoice);

                        SqlCommand com6 = new SqlCommand("select max(f_invoice) from c_emi where f_casenum=@f_casenum", con);
                        com6.Parameters.AddWithValue("@f_casenum", f_casenum);
                        max_id_invoice = com6.ExecuteScalar().ToString();

                        max_id_invoice = max_id_invoice.Substring(3);
                        en_invoice = Convert.ToInt64(max_id_invoice);

                        for (Int64 j = st_invoice; j <= en_invoice; j++)
                        {
                            string invoice_date = "";
                            string f_emi_due = "";
                            string f_total_emi = "";
                            string f_emi = "";
                            string f_b_curr = "";

                            string f_invoice = "PAI" + j;
                            string f_casenum1 = "";

                            SqlCommand com7 = new SqlCommand("select * from c_emi where f_invoice=@f_invoice", con);
                            com7.Parameters.AddWithValue("@f_invoice", f_invoice);

                            SqlDataReader reader7 = com7.ExecuteReader();
                            if (reader7.Read())
                            {
                                f_casenum1 = reader7["f_casenum"].ToString();
                                f_emi = reader7["f_emi"].ToString();
                                f_emi_due = reader7["f_emi_due"].ToString();
                                f_total_emi = reader7["f_total_emi"].ToString();
                                f_b_curr = reader7["f_b_curr"].ToString();
                                invoice_date = reader7["invoice_date"].ToString();
                            }

                            if (f_casenum == f_casenum1)
                            {
                                DateTime currr = DateTime.Now;
                                DateTime INDIAN_ZONE = TimeZoneInfo.ConvertTimeBySystemTimeZoneId(currr, "India Standard Time");

                                DateTime curr = INDIAN_ZONE;
                                string curr_invoicedate = curr.ToShortDateString();
                                DateTime check_invoicedate = Convert.ToDateTime(invoice_date);
                                check_invoicedate = check_invoicedate.AddDays(30);
                                check_invoicedate = Convert.ToDateTime(check_invoicedate);
                                string exit_date = check_invoicedate.ToShortDateString();

                                string f_emi_duedate = check_invoicedate.AddDays(10).ToShortDateString();
                                string invoice_date1 = check_invoicedate.ToShortDateString();

                                SqlCommand com8 = new SqlCommand("select f_casenum from c_emi where f_casenum=@f_casenum and CONVERT(date,invoice_date,101)=@invoice_date", con);
                                com8.Parameters.AddWithValue("@f_casenum", f_casenum);
                                com8.Parameters.AddWithValue("@invoice_date", exit_date);

                                string check_exitdate = "";

                                SqlDataReader reader8 = com8.ExecuteReader();
                                if (reader8.Read())
                                {
                                    check_exitdate = reader8["f_casenum"].ToString();
                                }
                                else
                                {
                                }

                                if (check_exitdate != "")
                                {
                                }
                                else
                                {
                                    if (curr >= check_invoicedate)
                                    {
                                        string value = "0";
                                        string owner = "";
                                        string i_status = "Unlock";

                                        SqlCommand com9 = new SqlCommand("select MAX(f_invoice) from c_emi", con);
                                        string maxid1 = com9.ExecuteScalar().ToString();

                                        string id1 = maxid1;
                                        Int64 code = 100000000001;
                                        string c = "PAI";

                                        if (id1.Substring(0, 1) != "P")
                                        {
                                            id1 = code.ToString();
                                            id1 = c + id1.ToString();
                                        }
                                        else
                                        {
                                            id1 = id1.Substring(3);
                                            Int64 a = Convert.ToInt64(id1);
                                            a = a + 1;
                                            id1 = c + a.ToString();
                                        }
                                        id1 = id1.ToString();

                                        SqlCommand com11 = new SqlCommand("insert into c_emi values(@f_casenum,@f_b_amt,@f_emi,@f_emi_duedate,@f_invoice,@invoice_date,@f_overdue_amt,@f_emi_paid,@f_emi_due,@f_total_emi,@f_b_curr,@i_status,@owner,@convi_charges,@paidemi_date)", con);

                                        SqlParameter obj1 = new SqlParameter("@f_casenum", DbType.StringFixedLength);
                                        obj1.Value = f_casenum;
                                        com11.Parameters.Add(obj1);

                                        SqlParameter obj2 = new SqlParameter("@f_overdue_amt", DbType.StringFixedLength);
                                        obj2.Value = value;
                                        com11.Parameters.Add(obj2);

                                        SqlParameter obj3 = new SqlParameter("@f_emi_paid", DbType.StringFixedLength);
                                        obj3.Value = value;
                                        com11.Parameters.Add(obj3);

                                        SqlParameter obj4 = new SqlParameter("@f_emi_due", DbType.StringFixedLength);
                                        obj4.Value = value;
                                        com11.Parameters.Add(obj4);

                                        SqlParameter obj5 = new SqlParameter("@f_total_emi", DbType.StringFixedLength);
                                        obj5.Value = f_emi;
                                        com11.Parameters.Add(obj5);

                                        SqlParameter obj6 = new SqlParameter("@f_emi", DbType.StringFixedLength);
                                        obj6.Value = f_emi;
                                        com11.Parameters.Add(obj6);

                                        SqlParameter obj7 = new SqlParameter("@f_emi_duedate", DbType.StringFixedLength);
                                        obj7.Value = f_emi_duedate;
                                        com11.Parameters.Add(obj7);

                                        SqlParameter obj8 = new SqlParameter("@f_invoice", DbType.StringFixedLength);
                                        obj8.Value = id1;
                                        com11.Parameters.Add(obj8);

                                        SqlParameter obj9 = new SqlParameter("@invoice_date", DbType.StringFixedLength);
                                        obj9.Value = invoice_date1;
                                        com11.Parameters.Add(obj9);

                                        SqlParameter obj10 = new SqlParameter("@f_b_amt", DbType.StringFixedLength);
                                        obj10.Value = f_b_curr;
                                        com11.Parameters.Add(obj10);

                                        SqlParameter obj11 = new SqlParameter("@f_b_curr", DbType.StringFixedLength);
                                        obj11.Value = f_b_curr;
                                        com11.Parameters.Add(obj11);

                                        SqlParameter obj12 = new SqlParameter("@i_status", DbType.StringFixedLength);
                                        obj12.Value = i_status;
                                        com11.Parameters.Add(obj12);

                                        SqlParameter obj13 = new SqlParameter("@owner", DbType.StringFixedLength);
                                        obj13.Value = owner;
                                        com11.Parameters.Add(obj13);

                                        SqlParameter obj14 = new SqlParameter("@convi_charges", DbType.StringFixedLength);
                                        obj14.Value = value;
                                        com11.Parameters.Add(obj14);

                                        SqlParameter obj15 = new SqlParameter("@paidemi_date", DbType.StringFixedLength);
                                        obj15.Value = owner;
                                        com11.Parameters.Add(obj15);

                                        com11.ExecuteNonQuery();
                                    }
                                    else
                                    {
                                    }
                                }
                            }
                            else
                            {
                            }
                        }
                    }
                }
            }
        }
        con.Close();
    }
}

排队

SqlDataReader reader7 = com7.ExecuteReader();

错误描述:

[SqlException (0x80131904): A transport-level error has occurred when receiving results from the server. (provider: Session Provider, error: 19 - Physical connection is not usable)]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +388
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +815
   System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject stateObj, UInt32 error) +817
   System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync() +344
   System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket() +48
   System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer() +72
   System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte& value) +114
   System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +950
   System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +69
   System.Data.SqlClient.SqlDataReader.get_MetaData() +134
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +6553981
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds) +6556619
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +586
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +104
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +288
   System.Data.SqlClient.SqlCommand.ExecuteReader() +302
   autorefresh_create_emi.Page_Load(Object sender, EventArgs e) in e:\phurti_crm\autorefresh_create_emi.aspx.cs:106
   System.Web.UI.Control.LoadRecursive() +71
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178

我使用的是 ASP.Net 和 C#，数据库是 SQL Server 2012。

最佳答案

我使用以下方法解决了这个问题

reader.Close();

感谢您的支持。

关于c# - 从 asp.net c# 中的服务器错误接收结果时发生传输级错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27590614/

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