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我想使用Oracle使用dotConnect for Oracle(v 9.4)。由於aspnet核心2.0完全支持引用舊的.net框架,我試圖連接到數據庫使用常規的.net程序集(即程序集包含我的DbContext在目標。NET 4.6.1,並已在我的聊天室網站核心2項目)。aspnetcore 2.0與EF6和dotConnect爲oracle
我對着跌破發行
"System.TypeInitializationException: 'The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception.'
Inner Exception: FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified."
這裏是我CodeConfig
類
public class CodeConfig : DbConfiguration
{
public CodeConfig()
{
SetProviderServices("Devart.Data.Oracle", Devart.Data.Oracle.Entity.OracleEntityProviderServices.Instance);
SetProviderFactory("Devart.Data.Oracle", new Devart.Data.Oracle.OracleProviderFactory());
}
}
我的DbContext類
[DbConfigurationType(typeof(CodeConfig))]
public partial class MyEntities : DataContext, IMyStoredProcedures
{
public MyEntities(string nameOrConnectionString) : base(nameOrConnectionString)
{
Configure();
}
private void Configure()
{
this.Configuration.AutoDetectChangesEnabled = true;
this.Configuration.LazyLoadingEnabled = true;
this.Configuration.ProxyCreationEnabled = true;
this.Configuration.ValidateOnSaveEnabled = true;
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
throw new UnintentionalCodeFirstException();
}
}
...
}
拋出異常時
base(nameOrConnectionString)
被執行。
在啓動DI
var dbContext = new MyEntities(Configuration["Data:DefaultConnection:ConnectionString"]);
services.AddScoped<IDataContextAsync>(provider => dbContext);
services.AddScoped<IMyStoredProcedures>(provider => dbContext);
Appsettings.json
"Data": {
"DefaultConnection": {
"ConnectionString": "metadata=res://Org.MyApp.Entities/MyModel.csdl|res://Org.MyApp.Entities/MyModel.ssdl|res://Org.MyApp.Entities/MyModel.msl;provider=Devart.Data.Oracle;provider connection string="User Id=UID;Password=****;Server=Server;Persist Security Info=True""
}
}
以下鏈接被用作參考。
aspnet core 1.x with EF6(基於1.x的,但有一些有用的信息)