如何解决以下错误
“从服务器接收结果时发生传输级别错误。（提供程序：会话提供程序，错误：19 - 物理连接不可用）”
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>
和我的C＃代码抛出错误：
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();
错误说明：
[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。
答案 0 :(得分：2)
我使用
解决了这个问题reader.Close();
感谢您的支持。