Question

首先，我想道歉，因为我找到了许多类似问题的主题，但没有解决我的问题。

我在Visual Studio 2012 Ultimate中开发了一个ASP.net网站（C＃）。我创建了App_Data文件夹并创建了一个SQL Sever数据库。所有开发完成后，我决定将网站部署到Windows Server 2008 R2上的IIS7。部署之后，大多数网页都运行得很好，除了那些包含数据库数据的网页。

我在IIS中选择了.Net FrameWork版本到v4.0

这是我在访问带有gridview的页面时遇到的错误。

Server Error in '/' Application.

The system cannot find the file specified 
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 system cannot find the file specified

Source Error: 

 An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace:

[Win32Exception (0x80004005): The system cannot find the file specified]
[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: SQL Network Interfaces, error: 52 - Unable to locate a Local Database Runtime installation. Verify that SQL Server Express is properly installed and that the Local Database Runtime feature is enabled.)]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +414
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +78
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +196
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +146
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +16
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +94
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +110
   System.Data.SqlClient.SqlConnection.Open() +96
   System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +121
   System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior) +160
   System.Data.Common.DbDataAdapter.Fill(DataTable dataTable) +108
   dsNotificaTableAdapters.pessoasEnvolvidasTableAdapter.getPessoasEnvolvidas() +101
   notificar.fillrblPessoas() +41
   notificar.Page_Load(Object sender, EventArgs e) +327
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +92
   System.Web.UI.Control.LoadRecursive() +54
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18446

提前感谢您的帮助！

Answer 1

[SqlException（0x80131904）：与网络相关或特定于实例的建立与SQL Server的连接时发生错误。该服务器未找到或无法访问。验证该实例名称是正确的，并且SQL Server配置为允许远程连接。（提供者：SQL网络接口，错误：52 - 无法使用找到本地数据库运行时安装。验证SQL Server Express已正确安装并且是本地数据库运行时功能已启用。）]

LocalDB （App_Data中的SQL数据库）主要用于开发和测试目的。当您发布到生产时，它不会与您的源代码一起复制。

当您的应用程序生效时，您需要一个真正的SQL Server。因此，您需要在托管应用程序的同一服务器或专用SQL服务器上安装SQL Server。然后附上该数据库。

Answer 2

仍然必须在计算机上安装LocalDB才能使其正常工作，并不是自动包含在应用程序部署中的免费SQL Server版本。在本地工作站上，安装Visual Studio时安装了LocalDB。

所以最后，您仍然需要一个运行应用程序的服务器可以连接的数据库服务器。 LocalDB应由开发人员在本地使用，因此在服务器情况下，您可能需要查看SQL Server Express。

Answer 3

您需要在appPool配置中设置一个值，以使您的网站能够访问.mdf文件：

在C：\ Windows \ System32 \ inetsrv \ config \ applicationHost.config

中

设置etProfileEnvironment =“true”，如：

<add name=“ASP.NET v4.0“ autoStart=“true“ managedRuntimeVersion=“v4.0“ managedPipelineMode=“Integrated“>
<processModel identityType=“ApplicationPoolIdentity“ loadUserProfile=“true“ setProfileEnvironment=“true“ />
</add>

https://blogs.msdn.microsoft.com/sqlexpress/2011/12/08/using-localdb-with-full-iis-part-1-user-profile/

ASP.net网站将LocalDB部署到IIS7

3 个答案: