在前篇中我們已經(jīng)將User類(lèi)中的代碼做了具體的實(shí)現(xiàn),但仍然有多個(gè)實(shí)體類(lèi)未實(shí)現(xiàn),以后可能還會(huì)增加新的數(shù)據(jù)表,數(shù)據(jù)表結(jié)構(gòu)也有可能發(fā)生變化,所以我們使用T4模板來(lái)完成類(lèi)的生成,這樣就算數(shù)據(jù)庫(kù)表發(fā)生了改變,也會(huì)自動(dòng)根據(jù)改變后的實(shí)體對(duì)類(lèi)進(jìn)行重新生成。
下面是數(shù)據(jù)訪問(wèn)層的T4模板文件 Dal.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); //EF實(shí)體文件在項(xiàng)目中的路徑 string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> <# //這里為命名空間部分,手動(dòng)更改為相應(yīng)的命名空間 #> using PMS.IDAL; using PMS.Model; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PMS.DAL { <# // Emit Entity Types foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs"); //BeginNamespace(namespaceName, code); #> public partial class <#=entity.Name#>Dal :BaseDal<<#=entity.Name#>>,I<#=entity.Name#>Dal { } <#}#> } |
我們將EF實(shí)體文件路徑、命名空間更改為對(duì)應(yīng)的值時(shí),Ctrl+S保存,即可生成對(duì)應(yīng)的其他類(lèi)型的數(shù)據(jù)訪問(wèn)類(lèi)
其他層中也大同小異,只需要做對(duì)應(yīng)的更改即可,下面我將提供相應(yīng)的代碼
IDAL層
IDal.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using PMS.Model; namespace PMS.IDAL { <# // Emit Entity Types foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs"); //BeginNamespace(namespaceName, code); #> public partial interface I<#=entity.Name#>Dal :IBaseDal<<#=entity.Name#>> { } <#}#> } |
IDbSession.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> using System; using System.Collections.Generic; using System.Data.Entity; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PMS.IDAL { public partial interface IDbSession { <# // Emit Entity Types foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs"); //BeginNamespace(namespaceName, code); #> I<#=entity.Name#>Dal <#=entity.Name#>Dal{ get ; set ;} <#}#> } } |
DALFactory層
SimpleDalFactory.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> using SW.OA.IDAL; using System; using System.Collections.Generic; using System.Configuration; using System.Linq; using System.Reflection; using System.Text; using System.Threading.Tasks; namespace SW.OA.DALFactory { public partial class AbstractFactory { <# foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { #> public static I<#=entity.Name#>Dal Create<#=entity.Name#>Dal() { string fullClassName = NameSpace + ".<#=entity.Name#>Dal" ; return CreateInstance(fullClassName) as I<#=entity.Name#>Dal; } <#}#> } } |
DbSession.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> using PMS.DAL; using PMS.IDAL; using PMS.Model; using System; using System.Collections.Generic; using System.Data.Entity; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PMS.DALFactory { public partial class DBSession : IDBSession { <# // Emit Entity Types foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs"); //BeginNamespace(namespaceName, code); #> private I<#=entity.Name#>Dal _<#=entity.Name#>Dal; public I<#=entity.Name#>Dal <#=entity.Name#>Dal { get { if (_<#=entity.Name#>Dal == null ) { _<#=entity.Name#>Dal = AbstractFactory.Create<#=entity.Name#>Dal(); } return _<#=entity.Name#>Dal; } set { _<#=entity.Name#>Dal = value; } } <#}#> } } |
BLL層
Service.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> using PMS.IBLL; using PMS.Model; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PMS.BLL { <# // Emit Entity Types foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs"); //BeginNamespace(namespaceName, code); #> public partial class <#=entity.Name#>Service :BaseService<<#=entity.Name#>>,I<#=entity.Name#>Service { public override void SetCurrentDal() { CurrentDal = this .CurrentDbSession.<#=entity.Name#>Dal; } } <#}#> } |
BLL層
IService.tt
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<#@ template language= "C#" debug= "false" hostspecific= "true" #> <#@ include file= "EF.Utility.CS.ttinclude" #><#@ output extension= ".cs" #> <# CodeGenerationTools code = new CodeGenerationTools( this ); MetadataLoader loader = new MetadataLoader( this ); CodeRegion region = new CodeRegion( this , 1); MetadataTools ef = new MetadataTools( this ); string inputFile = @"..\\PMS.Model\\PMS.edmx" ; EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); string namespaceName = code.VsNamespaceSuggestion(); EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create( this ); #> using PMS.Model; using PMS.Model.Search; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PMS.IBLL { <# // Emit Entity Types foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name)) { //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs"); //BeginNamespace(namespaceName, code); #> public partial interface I<#=entity.Name#>Service : IBaseService<<#=entity.Name#>> { } <#}#> } |
以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持服務(wù)器之家。
原文鏈接:http://www.cnblogs.com/JiaoWoWeiZai/p/5876914.html