我正在尝试使用Enitity Framework在windows-server 2012上部署asp.net应用程序。我在服务器上安装了Visual Studio 2015 Enterprise。当我在Visual Studio中运行应用程序时它工作正常,它使用Entity-Framework Code First创建一个localDB,它由AppDbContext的构造函数中的字符串构成。
我将解决方案复制到C:/ inetputb / wwwroot并使用Internet Information Services Manager创建一个新网站,我将我的解决方案的表示层设置为物理路径。
当我开始浏览该页面时,我收到此错误:
Server Error in '/' Application.
--------------------------------------------------------------------------------
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: 50 - Local
Database Runtime error occurred. Cannot create an automatic instance. See the
Windows Application event log for error details.
)
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.Data.SqlClient.SqlException: 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: 50 - Local Database Runtime error
occurred. Cannot create an automatic instance. See the Windows Application
event log for error details.
)
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:
[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: 50 - Local Database Runtime error occurred. Cannot create an
automatic instance. See the Windows Application event log for error details.
)]
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, SqlCredential credential, Object
providerInfo, String newPassword, SecureString newSecurePassword, Boolean
redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData
reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean
applyTransientFaultHandling) +1394
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions
options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool
pool, DbConnection owningConnection, DbConnectionOptions userOptions) +1120
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool
pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey
poolKey, DbConnectionOptions userOptions) +70
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection
owningObject, DbConnectionOptions userOptions, DbConnectionInternal
oldConnection) +964
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection
owningObject, DbConnectionOptions userOptions, DbConnectionInternal
oldConnection) +114
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate,
Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal&
connection) +1631
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions,
DbConnectionInternal& connection) +117
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection
owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions
userOptions, DbConnectionInternal oldConnection, DbConnectionInternal&
connection) +267
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection
outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry,
DbConnectionOptions userOptions) +318
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1
retry) +211
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
+393
System.Data.SqlClient.SqlConnection.Open() +122
System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch(TTarget
target, Action`2 operation, TInterceptionContext interceptionContext, Action`3 executing,
Action`3 executed) +104
System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext) +442
System.Data.Entity.SqlServer.<>c__DisplayClass33.<UsingConnection>b__32()
+562
System.Data.Entity.SqlServer.<>c__DisplayClass1.<Execute>b__0() +16
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Func`1
operation) +229
System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection
sqlConnection, Action`1 act) +916
System.Data.Entity.SqlServer.SqlProviderServices.CreateDatabaseFromScript(Nullable`1
commandTimeout, DbConnection sqlConnection, String createDatabaseScript) +111
System.Data.Entity.SqlServer.SqlProviderServices.DbCreateDatabase(DbConnection
connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) +203
System.Data.Entity.Migrations.Utilities.DatabaseCreator.Create(DbConnection
connection) +129
System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action
mustSucceedToKeepDatabase) +172
System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) +110
System.Data.Entity.Internal.DatabaseCreator.CreateDatabase(InternalContext
internalContext, Func`3 createMigrator, ObjectContext objectContext) +118
System.Data.Entity.Database.Create(DatabaseExistenceState existenceState)
+284
System.Data.Entity.CreateDatabaseIfNotExists`1.InitializeDatabase(TContext
context) +185
System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action)
+72
System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization()
+502
System.Data.Entity.Internal.RetryAction`1.PerformAction(TInput input) +177
System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action`1
action) +273
System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type
entityType) +38
System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +77
System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext() +21
System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider() +56
System.Linq.Queryable.Where(IQueryable`1 source, Expression`1 predicate) +61
BL.Facades.StatisticsFacade.GetDistributionData(String factorFamiliarName,
Int32 versionID) +1396
PL.Controllers.StatisticsController.Index() in C:\Users\Administrator\Downloads\MyFirstProject\MyFirstProject\PL\Controllers\StatisticsController.cs:19
lambda_method(Closure , ControllerBase , Object[] ) +87
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext
controllerContext, IDictionary`2 parameters) +209
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext
controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
+35
System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult
asyncResult) +67
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult
asyncResult) +42
System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +72
System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +386
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +30
System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult
asyncResult) +186
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult
asyncResult) +38
System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult,
ExecuteCoreState innerState) +29
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult
asyncResult) +65
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult
asyncResult) +36
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult
asyncResult, ProcessRequestState innerState) +44
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult
asyncResult) +65
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +399
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously) +137
我试图将这个项目部署几周不成功,真的需要完成它。有人可以告诉我我做错了什么? 在此之前,我尝试使用sql server express 2014部署它,没有安装Visual Studio,仍然无法使其工作..
答案 0 :(得分:0)
发生与网络相关或特定于实例的错误 建立与SQL Server的连接.......
此错误表示,您对数据库的连接详细信息不正确。 参考:https://www.connectionstrings.com/sql-server/