Azure WebJobs 无法连接到 mdf 数据库答案

【问题标题】：Azure WebJobs cannot connect to mdf databaseAzure WebJobs 无法连接到 mdf 数据库
【发布时间】：2018-02-09 21:41:55
【问题描述】：

我正在开发一个 Azure 网站和一个 WebJob。开发数据库是一个 Mdf 文件。 Mvc 应用可以连接到 Azure 存储和数据库。 WebJob 可以连接到 Azure 存储，但是数据库会抛出这个：

System.Data.SqlClient.SqlException occurred
  HResult=0x80131904
  Message=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. Specified LocalDB instance name is invalid.
)
  Source=Core .Net SqlClient Data Provider
  StackTrace:
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)

Mvc 和 WebJob 共享相同的连接字符串：

Data Source=(LocalDB)\\MSSQLLocalDB;AttachDbFilename=D:\\Projects\\Test1\\Code\\Database\\Test1.mdf;Integrated Security=True;Connect Timeout=30;Encrypt=False

如果 WebJob 启动时 Mvc 应用程序正在运行，则没有任何区别。

【问题讨论】：

标签： asp.net-mvc azure-webjobs mdf

【解决方案1】：

在 MVC 应用程序用户机密中，我不得不使用双斜杠，如下所示：

Data Source=(LocalDB)\\MSSQLLocalDB

在 webjob 控制台应用程序的 app.config 文件中，我不得不像这样使用单斜杠：

Data Source=(LocalDB)\MSSQLLocalDB

【讨论】：