MVC使用T4模板生成其他类的具体实现学习笔记2
在前篇中我们已经将User类中的代码做了具体的实现，但仍然有多个实体类未实现，以后可能还会增加新的数据表，数据表结构也有可能发生变化，所以我们使用T4模板来完成类的生成，这样就算数据库表发生了改变，也会自动根据改变后的实体对类进行重新生成。
下面是数据访问层的T4模板文件Dal.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
//EF实体文件在项目中的路径
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
<#//这里为命名空间部分，手动更改为相应的命名空间#>
usingPMS.IDAL;
usingPMS.Model;
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
namespacePMS.DAL
{
<#
//EmitEntityTypes
foreach(EntityTypeentityinItemCollection.GetItems<EntityType>().OrderBy(e=>e.Name))
{
//fileManager.StartNewFile(entity.Name+"RepositoryExt.cs");
//BeginNamespace(namespaceName,code);
#>
publicpartialclass<#=entity.Name#>Dal:BaseDal<<#=entity.Name#>>,I<#=entity.Name#>Dal
{
}
<#}#>
}
我们将EF实体文件路径、命名空间更改为对应的值时，Ctrl+S保存，即可生成对应的其他类型的数据访问类
其他层中也大同小异，只需要做对应的更改即可，下面我将提供相应的代码
IDAL层
IDal.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
usingPMS.Model;
namespacePMS.IDAL
{
<#
//EmitEntityTypes
foreach(EntityTypeentityinItemCollection.GetItems<EntityType>().OrderBy(e=>e.Name))
{
//fileManager.StartNewFile(entity.Name+"RepositoryExt.cs");
//BeginNamespace(namespaceName,code);
#>
publicpartialinterfaceI<#=entity.Name#>Dal:IBaseDal<<#=entity.Name#>>
{
}
<#}#>
}
IDbSession.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Data.Entity;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
namespacePMS.IDAL
{
publicpartialinterfaceIDbSession
{
<#
//EmitEntityTypes
foreach(EntityTypeentityinItemCollection.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层
SimpleDalFactory.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
usingSW.OA.IDAL;
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Configuration;
usingSystem.Linq;
usingSystem.Reflection;
usingSystem.Text;
usingSystem.Threading.Tasks;
namespaceSW.OA.DALFactory
{
publicpartialclassAbstractFactory
{
<#
foreach(EntityTypeentityinItemCollection.GetItems<EntityType>().OrderBy(e=>e.Name))
{
#>
publicstaticI<#=entity.Name#>DalCreate<#=entity.Name#>Dal()
{
stringfullClassName=NameSpace+".<#=entity.Name#>Dal";
returnCreateInstance(fullClassName)asI<#=entity.Name#>Dal;
}
<#}#>
}
}
DbSession.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
usingPMS.DAL;
usingPMS.IDAL;
usingPMS.Model;
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Data.Entity;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
namespacePMS.DALFactory
{
publicpartialclassDBSession:IDBSession
{
<#
//EmitEntityTypes
foreach(EntityTypeentityinItemCollection.GetItems<EntityType>().OrderBy(e=>e.Name))
{
//fileManager.StartNewFile(entity.Name+"RepositoryExt.cs");
//BeginNamespace(namespaceName,code);
#>
privateI<#=entity.Name#>Dal_<#=entity.Name#>Dal;
publicI<#=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层
Service.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
usingPMS.IBLL;
usingPMS.Model;
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
namespacePMS.BLL
{
<#
//EmitEntityTypes
foreach(EntityTypeentityinItemCollection.GetItems<EntityType>().OrderBy(e=>e.Name))
{
//fileManager.StartNewFile(entity.Name+"RepositoryExt.cs");
//BeginNamespace(namespaceName,code);
#>
publicpartialclass<#=entity.Name#>Service:BaseService<<#=entity.Name#>>,I<#=entity.Name#>Service
{
publicoverridevoidSetCurrentDal()
{
CurrentDal=this.CurrentDbSession.<#=entity.Name#>Dal;
}
}
<#}#>
}
BLL层
IService.tt
<#@templatelanguage="C#"debug="false"hostspecific="true"#>
<#@includefile="EF.Utility.CS.ttinclude"#><#@
outputextension=".cs"#>
<#
CodeGenerationToolscode=newCodeGenerationTools(this);
MetadataLoaderloader=newMetadataLoader(this);
CodeRegionregion=newCodeRegion(this,1);
MetadataToolsef=newMetadataTools(this);
stringinputFile=@"..\\PMS.Model\\PMS.edmx";
EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);
stringnamespaceName=code.VsNamespaceSuggestion();
EntityFrameworkTemplateFileManagerfileManager=EntityFrameworkTemplateFileManager.Create(this);
#>
usingPMS.Model;
usingPMS.Model.Search;
usingSystem;
usingSystem.Collections.Generic;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
namespacePMS.IBLL
{
<#
//EmitEntityTypes
foreach(EntityTypeentityinItemCollection.GetItems<EntityType>().OrderBy(e=>e.Name))
{
//fileManager.StartNewFile(entity.Name+"RepositoryExt.cs");
//BeginNamespace(namespaceName,code);
#>
publicpartialinterfaceI<#=entity.Name#>Service:IBaseService<<#=entity.Name#>>
{
}
<#}#>
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。