Fehler beim Verbinden mit SQL mit IIS 7

Question

Während ich in IIS arbeite, habe ich kürzlich eine Anwendung dort gestartet. Wenn ich versuche, auf „Durchsuchen“, um die Anwendung es die folgenden Fehler wirft, die früher Here von einem anderen Benutzer besprochen worden war:

The network path was not found 

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.ComponentModel.Win32Exception: The network path was not found 

Source Error: 


Line 34:     { 
Line 35:      EventLogger.LogEvent(ex); 
Line 36:      throw ex; 
Line 37:     } 
Line 38:     finally 

Source File: c:\Program Files (x86)\Jenkins\jobs\IBT\workspace\iLaundry.IBT\Data\DatabaseUpdater.cs Line: 36 

Stack Trace: 


[Win32Exception (0x80004005): The network path was not found] 

[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)] 
    iLaundry.IBT.Data.DatabaseUpdater.GetCurrentVersion() in c:\Program Files (x86)\Jenkins\jobs\IBT\workspace\iLaundry.IBT\Data\DatabaseUpdater.cs:36 
    iLaundry.IBT.Data.DatabaseUpdater.ExecuteUpdates() in c:\Program Files (x86)\Jenkins\jobs\IBT\workspace\iLaundry.IBT\Data\DatabaseUpdater.cs:188 
    iLaundry.IBT.Data.IBTData..cctor() in c:\Program Files (x86)\Jenkins\jobs\IBT\workspace\iLaundry.IBT\Data\IBTData.cs:40 

[ApplicationException: Cannot connect to the database] 
    iLaundry.IBT.Data.IBTData..cctor() in c:\Program Files (x86)\Jenkins\jobs\IBT\workspace\iLaundry.IBT\Data\IBTData.cs:45 

ich die Verbindungszeichenfolge geändert habe als die vorherige akzeptierte Antwort vorgeschlagen, aber es hat immer noch nicht behebe mein Problem. Hier ist der C# -Code verwendet, um die Anwendung mit der Datenbank zu verbinden:

C#:

using iLaundry.Utilities; 
using System; 
using System.Collections.Generic; 
using System.Data.SqlClient; 
using System.Linq; 
using System.Web; 

namespace iLaundry.IBT.Data 
{ 
    internal class DatabaseUpdater 
    { 

     private string connectionString; 

     internal DatabaseUpdater(string connectionString) 
     { 
      this.connectionString = connectionString; 
     } 

     internal Version GetCurrentVersion() 
     { 
      using (SqlConnection conn = new SqlConnection(connectionString)) 
      using (SqlCommand cmd = new SqlCommand("SELECT COUNT(*) FROM sysobjects WHERE xtype='P' AND [name]='DatabaseVersion'", conn)) 
      { 
       try 
       { 
        conn.Open(); 
        if ((int)cmd.ExecuteScalar() == 0) 
         return Version.Parse("0.0.0.0"); 
        cmd.CommandText = "DatabaseVersion"; 
        return Version.Parse((string)cmd.ExecuteScalar()); 
       } 
       catch (Exception ex) 
       { 
        EventLogger.LogEvent(ex); 
        throw ex; 
       } 
       finally 
       { 
        conn.Close(); 
       } 
      } 
     } 

     internal List<string> GetUpdates(Version currentVersion, Version targetVersion) 
     { 
      List<string> result = new List<string>(); 

      if (currentVersion == targetVersion) 
       return result; 

      #region 0.0.0.0 -> 0.0.0.1 

      if (currentVersion == Version.Parse("0.0.0.0")) 
      { 

       // Create List Items with Table 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.1"), 
        @"CREATE TABLE Account (AccountId int primary key identity(1, 1), 
UserName varchar(50) not null, 
Password varchar(50) not null, 
StatusActive bit not null)", 

        @"CREATE TABLE Recharge (RechargeId int primary key identity(1, 1), 
AccountId int not null references Account, 
RechargeDateTime datetime not null, 
ExpiryDateTime datetime not null)", 

        @"CREATE TABLE Branch (BranchId int primary key identity(1, 1), 
BranchKey varchar(50) unique not null, 
SyncKey uniqueidentifier unique not null)", 

        @"CREATE TABLE Service (ServiceId int primary key identity(1, 1), 
OwnerBranchId int not null references Branch, 
SyncKey uniqueidentifier unique not null, 
Description varchar(200), 
StatusActive bit not null)", 

        @"CREATE TABLE [Order] (OrderId int primary key identity(1, 1), 
BranchId int not null references Branch, 
ExOrderNumber varchar(50) not null)", 

        @"CREATE TABLE OrderService (OrderServiceId int primary key identity(1, 1), 
OrderId int not null references [Order], 
ServiceId int not null references [Service], 
Quantity int not null)", 

        @"CREATE PROCEDURE DatabaseVersion AS SELECT [Version]='0.0.0.0'"); 
      } 

      #endregion 


      #region 0.0.0.1 -> 0.0.0.6 

      if (currentVersion == Version.Parse("0.0.0.1")) 
       currentVersion = result.AddUpdate(
        Version.Parse("0.0.0.2"), 
@"CREATE TABLE Subscription (SubscriptionId int primary key identity(1, 1), 
ProviderBranchId int not null references Branch, 
ConsumerBranchId int not null references Branch, 
RequestDateTime datetime not null, 
ApproveDateTime datetime, 
RejectDateTime datetime)", 
@"ALTER TABLE Branch ADD [Name] varchar(100) not null, IsProvider bit not null default 0, IsConsumer bit not null default 0", 
"ALTER TABLE Account ADD CONSTRAINT UQ_Username UNIQUE (Username)", 
"ALTER TABLE Branch ADD CONSTRAINT UQ_BranchKey unique (BranchKey)", 
"ALTER TABLE Branch ADD CONSTRAINT UQ_SyncKey unique (SyncKey)" 
        ); 

      if (currentVersion == Version.Parse("0.0.0.2")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.3"), 
       @"ALTER TABLE [ORDER] ADD [DispatchNumber] int null, [OrderStatusId] int not null default 1", 
       @"CREATE TABLE [OrderStatus] (OrderStatusId int primary key identity(1, 1),StatusDescription varchar(50) not null,StatusActive bit not null)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'DispatchToProvider', 1)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'ReceivedByProvider', 1)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'InProgress', 1)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'Ready', 1)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'DispatchToConsumer', 1)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'ReceivedByConsumer', 1)", 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'ReadyForCollection', 1)" 
       ); 

      if (currentVersion == Version.Parse("0.0.0.3")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.4"), 
       @"CREATE TABLE OrderStatusUpdate (OrderStatusUpdateId int primary key identity(1, 1), 
OrderId int not null references [Order], 
PreviousOrderStatusId int REFERENCES [OrderStatus], 
NewOrderStatusId int NOT NULL REFERENCES [OrderStatus], 
ChangeDateTime datetime not null)", 
       @"CREATE TRIGGER TR_OrderStatusUpdate ON [Order] 
FOR INSERT,UPDATE 
AS 
    IF EXISTS(SELECT * FROM inserted) BEGIN 
     INSERT 
     INTO OrderStatusUpdate 
       (OrderId, NewOrderStatusId, ChangeDateTime) 
     SELECT OrderId, OrderStatusId, GETDATE() 
     FROM inserted 
    END ELSE BEGIN 
     INSERT 
     INTO OrderStatusUpdate 
       (OrderId, PreviousOrderStatusId, NewOrderStatusId, ChangeDateTime) 
     SELECT u.OrderId, u.OrderStatusId, i.OrderStatusId, GETDATE() 
     FROM deleted u 
       INNER JOIN inserted i ON (u.OrderId = i.OrderId) 
    END"); 

      if (currentVersion == Version.Parse("0.0.0.4")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.5"), 
       @"INSERT [dbo].[ORDERSTATUS] ([StatusDescription], [StatusActive]) VALUES (N'ReturnedByProvider', 1)"); 

      if (currentVersion == Version.Parse("0.0.0.5")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.6"), 
       @"DELETE FROM [OrderStatusUpdate]", 
       @"DELETE FROM [OrderService]", 
       @"DELETE FROM [Order]", 
       @"ALTER TABLE [Order] DROP COLUMN ExOrderNumber, DispatchNumber", 
       @"ALTER TABLE [Order] ADD ConsumerOrderNo varchar(50) NOT NULL, ConsumerDispatchNo varchar(50) NOT NULL, ProviderOrderNo varchar(50), ProviderDispatchNo varchar(50)", 
       @"CREATE TABLE [OrderServiceAttribute] (OrderServiceAttributeId int identity(1, 1) primary key, [OrderId] int not null references [Order], [Kind] varchar(50) NOT NULL, [Value] varchar(50) NOT NULL)"); 

      if (currentVersion == Version.Parse("0.0.0.6")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.7"), 
       @"ALTER TABLE [Order] ADD CONSTRAINT [FK_Order_OrderStatus] FOREIGN KEY ([OrderStatusId]) REFERENCES [OrderStatus] (OrderStatusId)"); 

      if (currentVersion == Version.Parse("0.0.0.7")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.8"), 
       @"DROP TABLE [OrderServiceAttribute]", 
       @"CREATE TABLE [OrderServiceAttribute] (OrderServiceAttributeId int identity(1, 1) primary key, [OrderServiceId] int not null references [OrderService], [Kind] varchar(50) NOT NULL, [Value] varchar(50) NOT NULL)"); 


      if (currentVersion == Version.Parse("0.0.0.8")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.9"), 
       @"ALTER TABLE [OrderService] ALTER COLUMN Quantity float NOT NULL"); 

      if (currentVersion == Version.Parse("0.0.0.9")) 
       currentVersion = result.AddUpdate(Version.Parse("0.0.0.10"), 
       @"CREATE TABLE [OrderServiceDispute] (OrderServiceDisputeId int identity(1, 1) primary key, BranchId int not null references [Branch], IsReceived bit NOT NULL, Comment varchar(max))"); 

      #endregion 

      //Next Version to follow here 
      return result; 
     } 

     internal bool ExecuteUpdates() 
     { 
      Version currentVersion = GetCurrentVersion(); 
      Version targetVersion = this.GetType().Assembly.GetName().Version; 
      if (currentVersion >= targetVersion) 
       return true; 
      List<string> heal = GetUpdates(currentVersion, targetVersion); 
      heal.AddUpdate(targetVersion); 

      using (SqlConnection conn = new SqlConnection(connectionString)) 
      using (SqlCommand cmd = new SqlCommand()) 
      { 
       try 
       { 
        cmd.Connection = conn; 
        conn.Open(); 
        foreach (string sql in heal) 
        { 
#if(DEBUG) 
         System.Diagnostics.Debug.WriteLine(sql); 
#endif 
         cmd.CommandText = sql; 
         cmd.ExecuteNonQuery(); 
        } 
        EventLogger.LogEvent(string.Format("Successfully updated to version {0}", targetVersion.ToString())); 

        return true; 
       } 
       catch (Exception ex) 
       { 
        EventLogger.LogEvent(ex); 
        return false; 
       } 
      } 

     } 
    } 

    internal static class DatabaseUpdater_Extensions 
    { 
     internal static Version AddUpdate(this List<string> updates, Version newVersionNo, params string[] sql) 
     { 
      updates.AddRange(sql); 
      updates.Add(string.Format("ALTER PROCEDURE DatabaseVersion AS SELECT [Version]='{0}'", newVersionNo)); 
      return newVersionNo; 
     } 
    } 
} 

Wenn diese Fehler aufgetreten ist vor und war in der Lage, es zu beheben Ich würde schätzen jede Eingabe in diese Sache.

Answer 1

Nach Stunden der Bekämpfung der Lösung der Frage war in IIS gehen und eher in der Connection String Registerkarte statt der SQL-Server selbst suchen. Nachdem die IIS-Zugriff auf SQL hatte ich brauche nur die Verbindungszeichenfolge zu ermöglichen, indem die Datenquelle Namen zu ändern, wie unten dargestellt:

Nach den default connection auf die richtige Datenquelle zu ändern. Die Verbindung funktionierte genau so, wie ich es wollte.

Answer 2

Angenommen, Ihre Verbindungszeichenfolge ist jetzt korrekt - und zeigt auf den Server an, mit welchem ​​Benutzer versuchen Sie eine Verbindung zur Datenbank herzustellen? Wenn Sie die Windows-Authentifizierung anstelle der SQL-Authentifizierung verwenden, müssen Sie den Benutzer, unter dem die Anwendung ausgeführt wird, zur Datenbank hinzufügen und sicherstellen, dass sie über die erforderlichen Berechtigungen verfügt. Der Benutzer, den Sie hinzufügen müssen, ist wahrscheinlich IISAPPPOOL/Standard App Pool