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osharp3 整合 dbcontextscope 后，，dbcontextscope 对dbcontext管理的很好,做到，用到时创建，不用时销毁，下面看一个 trace
aspx.page: End PreInit
aspx.page: Begin Init
aspx.page: End Init
aspx.page: Begin InitComplete
aspx.page: End InitComplete
aspx.page: Begin PreLoad
aspx.page: End PreLoad
aspx.page: Begin Load
trace OnLoad: SetControlInPage begin 根据权限标记，控制页面控件的显示和隐藏
trace OnLoad: RegBtnClick begin 根据权限标记，注册按钮事件
: DefaultDbContext ctor
object name: System.String
caller name: CanDoo.Data.Entity.Interceptors.EFIntercepterLogging
member name: ReaderExecuted
source line number: 94
time: 20160705 071119 8589791
message: ReaderExecuted执行时间:0 毫秒 \r\n -->ReaderExecuted.Command:\r\nSELECT
[Extent1].[Id] AS [Id],
[Extent1].[CreatedTime] AS [CreatedTime],
[Extent1].[Code] AS [Code],
[Extent1].[SortIndex] AS [SortIndex],
[Extent1].[Remark] AS [Remark],
[Extent1].[ParentId] AS [ParentId],
[Extent1].[Name] AS [Name]
FROM [dbo].[sys_Department] AS [Extent1]
: DefaultDbContext Dispose
aspx.page: End Load
aspx.page: Begin LoadComplete
aspx.page: End LoadComplete
aspx.page: Begin PreRender
aspx.page: End PreRender
aspx.page: Begin PreRenderComplete
aspx.page: End PreRenderComplete
aspx.page: Begin SaveState
aspx.page: End SaveState
aspx.page: Begin SaveStateComplete
aspx.page: End SaveStateComplete
aspx.page: Begin Render
aspx.page: End Render
但dbcontext默认是由dbcontextscope创建的，所以，我们的ioc就不能对dbcontext建行注入
不过它留了个接口 IDbContextFactory
public interface IDbContextFactory { TDbContext CreateDbContext<TDbContext>() where TDbContext : DbContext; DbContext CreateDbContext(Type requestedType); }
为了在dbcontext注入属性，，我通过这个接口，
将dbcontext的创建收回到ioc,实现这个接口
public class CandooDbContextFactory : IDbContextFactory { private IServiceProvider _provider; public CandooDbContextFactory(IServiceProvider provider) { _provider = provider; } public TDbContext CreateDbContext<TDbContext>() where TDbContext : DbContext { return (TDbContext)_provider.GetService(typeof(TDbContext)); } public DbContext CreateDbContext(Type requestedType) { return (DbContext)_provider.GetService(requestedType); } }
修改Startup注入配置
services.AddTransient<DefaultDbContext>();
services.AddTransient<LoggingDbContext>();
services.AddScoped<IDbContextFactory, CandooDbContextFactory>();
相关文章:
osharp3使用经验：整合DbContextScope 文章 1 http://www.cnblogs.com/shiningrise/p/oshap3_DbContextScope.html
https://github.com/mehdime/DbContextScope
https://github.com/i66soft/osharp
osharp3 整合 dbcontextscope 文章2 将dbcontext的创建收回到ioc管理
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原文地址：http://www.cnblogs.com/shiningrise/p/oshap3_DbContextScope1.html
