在azure上发布时列名无效

您好我在azure上发布了一个应用程序。 当我尝试访问BookDetail页面时，我收到InvalidColumn "Borrowed"错误。 在具有PhoneNumber和Password列的UserDetail页面上也会发生同样的事情。

这是BookDetail getmethod

 public IQueryable GetBook([QueryString("BookID")] int? BookID) { var _db = new WebApplication1.Models.LibraryContext(); IQueryable query = _db.Books; if (BookID.HasValue && BookID > 0) { query = query.Where(p => p.BookID == BookID); } else { query = null; } if (query == null || query.Count() == 0) { inputUserBorrow.Visible = false; inputUserBorrowButton.Visible = false; } return query; } 

这是我的模特

 namespace WebApplication1.Models { public class LibUser { [Key] public int UserID { get; set; } [Required, StringLength(50), Display(Name = "First Name")] public string UserFirstName { get; set; } [Required, StringLength(50), Display(Name = "Last Name")] public string UserLastName { get; set; } [Required, StringLength(100), Display(Name = "Street"), DataType(DataType.Text)] public string Adress { get; set; } [Required, StringLength(20), Display(Name = "Phone Number"), DataType(DataType.Text)] public string PhoneNumber { get; set; } public string Password { get; set; } } public class Book { [Key] public int BookID { get; set; } public string Title { get; set; } public string Author { get; set; } public DateTime Published { get; set; } public bool Borrowed { get; set; } public Book() { Borrowed = false; } } public class Borrowed { [Key] public int BorrowID { get; set; } public int UserID { get; set; } public int BookID { get; set; } public string BookTitle { get; set; } public DateTime Due { get; set; } } 

}

这是我的上下文文件

 namespace WebApplication1.Models { public class LibraryContext : DbContext { public LibraryContext() : base("LibraryContext") { } public DbSet LibUsers { get; set; } public DbSet Books { get; set; } public DbSet Borrows { get; set; } } } 

堆栈跟踪

 [SqlException (0x80131904): Invalid column name 'Borrowed'.] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +1787814 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +5341674 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +546 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +1693 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +61 System.Data.SqlClient.SqlDataReader.get_MetaData() +90 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +377 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds) +1421 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +177 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +53 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +137 System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +41 System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior) +10 System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.b__c(DbCommand t, DbCommandInterceptionContext`1 c) +9 System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch(TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed) +72 System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.Reader(DbCommand command, DbCommandInterceptionContext interceptionContext) +356 System.Data.Entity.Internal.InterceptableDbCommand.ExecuteDbDataReader(CommandBehavior behavior) +166 System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior) +10 System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +37 

当我将我的应用程序发布到azure并在azure服务上使用新数据库时出现此问题。 非常感谢您的帮助。

Answer 1

我今天下午遇到了同样的问题。 花了大约2个小时的重新部署并尝试新的迁移。 关闭和打开App Service为我做了诀窍。

Answer 2

检查Azure门户中Web App Application设置页面上的连接字符串。

这些覆盖连接在web.config中指定。

Web应用程序设置中连接字符串字段的Azure门户屏幕截图

我自己也有同样的问题。

在本地运行，连接到Azure上的数据库，一切正常（它使用web.config中的连接字符串）。

发布到Azure应用服务它不起作用。 web.config中的相同连接字符串相同，但正在使用门户网站中指定的连接字符串，将应用程序指向数据库的过时版本。

在门户中更新这些连接字符串可以解决问题。