使用T4模板生成POCO类
为什么叫T4？因为简写为4个T。
T4(Text Template Transformation Toolkit)是微软官方在VisualStudio 2008中开始使用的代码生成引擎。在 Visual Studio 中，“T4 文本模板”是由一些文本块和控制逻辑组成的混合模板，它可以生成文本文件。 在 Visual C# 或 Visual Basic 中，控制逻辑编写为程序代码的片段。生成的文件可以是任何类型的文本，例如网页、资源文件或任何语言的程序源代码。现在的VS中只要与代码生成相关的场景基本上都能找T4的身影，比如MVC的视图模板，Entity Framwork的DataContext模板等等。
若论灵活性，各种代码生成工具还真不如T4模板。
在VS2013种默认没有了T4模板，取而代之的是文本模板，但是他们的后缀名都是.tt。我们可以通过NuGet安装T4模板。
安装之后，我们在项目中新建项的时候，在VS模板中就多了两项和T4模板相关的模板。
当我们在新建的T4模板中进行代码编写的时候，默认是没有智能提示的，我们需要再安装一个T4Editor的VS插件tangibleT4EditorPlusModellingToolsVS2013.msi。
下载地址:
由于我这里用的是VS2013，所以按照13的插件，安装插件时先关闭VS，安装完成之后在T4模板中编写代码时就有了智能提示了。
关于T4模板的详细讲解，大家可以参照一下博客文章：
（译）理解 T4 模板：<#@ parameter #> 指令
我这里要说的是，如何在项目中替代其它的代码工具来使用，比如说，自动生成数据库中的POCO类。
思路：1、我们要查询中数据库中的表和字段。2、根据数据表名才，将其生成多个POCO类文件
How to do？
开发环境：VS2013
准备工作：添加必须的程序集引用
在自己电脑上面用everythin找到Microsoft.VisualStudio.TextTemplating.Interfaces.10.0.dll，然后添加引用，如果没有，你就网上下载一个。
方式一
1、添加一个T4模板文件DbHelper，将其后缀修改为.ttinclude，因为我是将其作为内嵌的T4文件，不修改扩展名的话，会将其当成T4模板文件进行生成。
<#+
public class DbHelper
{
#region GetDbTables
public static List<DbTable> GetDbTables(string connectionString, string database, string tables = null)
{
if (!string.IsNullOrEmpty(tables))
{
tables = string.Format(" and obj.name in ('{0}')", tables.Replace(",", "','"));
}
#region SQL
string sql = string.Format(@"SELECT
obj.name tablename,
schem.name schemname,
idx.rows,
CAST
(
CASE
WHEN (SELECT COUNT(1) FROM sys.indexes WHERE object_id= obj.OBJECT_ID AND is_primary_key=1) >=1 THEN 1
ELSE 0
END
AS BIT) HasPrimaryKey
from {0}.sys.objects obj
inner join {0}.dbo.sysindexes idx on obj.object_id=idx.id and idx.indid<=1
INNER JOIN {0}.sys.schemas schem ON obj.schema_id=schem.schema_id
where type='U' {1}
order by obj.name", database, tables);
#endregion
DataTable dt = GetDataTable(connectionString, sql);
return dt.Rows.Cast<DataRow>().Select(row => new DbTable
{
TableName = row.Field<string>("tablename"),
SchemaName = row.Field<string>("schemname"),
Rows = row.Field<int>("rows"),
HasPrimaryKey = row.Field<bool>("HasPrimaryKey")
}).ToList();
}
#endregion
#region GetDbColumns
public static List<DbColumn> GetDbColumns(string connectionString, string database, string tableName, string schema = "dbo")
{
#region SQL
string sql = string.Format(@"
WITH indexCTE AS
(
SELECT
ic.column_id,
ic.index_column_id,
ic.object_id
FROM {0}.sys.indexes idx
INNER JOIN {0}.sys.index_columns ic ON idx.index_id = ic.index_id AND idx.object_id = ic.object_id
WHERE idx.object_id =OBJECT_ID(@tableName) AND idx.is_primary_key=1
)
select
colm.column_id ColumnID,
CAST(CASE WHEN indexCTE.column_id IS NULL THEN 0 ELSE 1 END AS BIT) IsPrimaryKey,
colm.name ColumnName,
systype.name ColumnType,
colm.is_identity IsIdentity,
colm.is_nullable IsNullable,
cast(colm.max_length as int) ByteLength,
(
case
when systype.name='nvarchar' and colm.max_length>0 then colm.max_length/2
when systype.name='nchar' and colm.max_length>0 then colm.max_length/2
when systype.name='ntext' and colm.max_length>0 then colm.max_length/2
else colm.max_length
end
) CharLength,
cast(colm.precision as int) Precision,
cast(colm.scale as int) Scale,
prop.value Remark
from {0}.sys.columns colm
inner join {0}.sys.types systype on colm.system_type_id=systype.system_type_id and colm.user_type_id=systype.user_type_id
left join {0}.sys.extended_properties prop on colm.object_id=prop.major_id and colm.column_id=prop.minor_id
LEFT JOIN indexCTE ON colm.column_id=indexCTE.column_id AND colm.object_id=indexCTE.object_id
where colm.object_id=OBJECT_ID(@tableName)
order by colm.column_id", database);
#endregion
SqlParameter param = new SqlParameter("@tableName", SqlDbType.NVarChar, 100) { Value = string.Format("{0}.{1}.{2}", database, schema, tableName) };
DataTable dt = GetDataTable(connectionString, sql, param);
return dt.Rows.Cast<DataRow>().Select(row => new DbColumn()
{
ColumnID = row.Field<int>("ColumnID"),
IsPrimaryKey = row.Field<bool>("IsPrimaryKey"),
ColumnName = row.Field<string>("ColumnName"),
ColumnType = row.Field<string>("ColumnType"),
IsIdentity = row.Field<bool>("IsIdentity"),
IsNullable = row.Field<bool>("IsNullable"),
ByteLength = row.Field<int>("ByteLength"),
CharLength = row.Field<int>("CharLength"),
Scale = row.Field<int>("Scale"),
Remark = row["Remark"].ToString()
}).ToList();
}
#endregion
#region GetDataTable
public static DataTable GetDataTable(string connectionString, string commandText, params SqlParameter[] parms)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand command = connection.CreateCommand();
command.CommandText = commandText;
command.Parameters.AddRange(parms);
SqlDataAdapter adapter = new SqlDataAdapter(command);
DataTable dt = new DataTable();
adapter.Fill(dt);
return dt;
}
}
#endregion
}
#region DbTable
/// <summary>
/// 表结构
/// </summary>
public sealed class DbTable
{
/// <summary>
/// 表名称
/// </summary>
public string TableName { get; set; }
/// <summary>
/// 表的架构
/// </summary>
public string SchemaName { get; set; }
/// <summary>
/// 表的记录数
/// </summary>
public int Rows { get; set; }
/// <summary>
/// 是否含有主键
/// </summary>
public bool HasPrimaryKey { get; set; }
}
#endregion
#region DbColumn
/// <summary>
/// 表字段结构
/// </summary>
public sealed class DbColumn
{
/// <summary>
/// 字段ID
/// </summary>
public int ColumnID { get; set; }
/// <summary>
/// 是否主键
/// </summary>
public bool IsPrimaryKey { get; set; }
/// <summary>
/// 字段名称
/// </summary>
public string ColumnName { get; set; }
/// <summary>
/// 字段类型
/// </summary>
public string ColumnType { get; set; }
/// <summary>
/// 数据库类型对应的C#类型
/// </summary>
public string CSharpType
{
get
{
return SqlServerDbTypeMap.MapCsharpType(ColumnType);
}
}
/// <summary>
///
/// </summary>
public Type CommonType
{
get
{
return SqlServerDbTypeMap.MapCommonType(ColumnType);
}
}
/// <summary>
/// 字节长度
/// </summary>
public int ByteLength { get; set; }
/// <summary>
/// 字符长度
/// </summary>
public int CharLength { get; set; }
/// <summary>
/// 小数位
/// </summary>
public int Scale { get; set; }
/// <summary>
/// 是否自增列
/// </summary>
public bool IsIdentity { get; set; }
/// <summary>
/// 是否允许空
/// </summary>
public bool IsNullable { get; set; }
/// <summary>
/// 描述
/// </summary>
public string Remark { get; set; }
}
#endregion
#region SqlServerDbTypeMap
public class SqlServerDbTypeMap
{
public static string MapCsharpType(string dbtype)
{
if (string.IsNullOrEmpty(dbtype)) return dbtype;
dbtype = dbtype.ToLower();
string csharpType = "object";
switch (dbtype)
{
case "bigint": csharpType = "long"; break;
case "binary": csharpType = "byte[]"; break;
case "bit": csharpType = "bool"; break;
case "char": csharpType = "string"; break;
case "date": csharpType = "DateTime"; break;
case "datetime": csharpType = "DateTime"; break;
case "datetime2": csharpType = "DateTime"; break;
case "datetimeoffset": csharpType = "DateTimeOffset"; break;
case "decimal": csharpType = "decimal"; break;
case "float": csharpType = "double"; break;
case "image": csharpType = "byte[]"; break;
case "int": csharpType = "int"; break;
case "money": csharpType = "decimal"; break;
case "nchar": csharpType = "string"; break;
case "ntext": csharpType = "string"; break;
case "numeric": csharpType = "decimal"; break;
case "nvarchar": csharpType = "string"; break;
case "real": csharpType = "Single"; break;
case "smalldatetime": csharpType = "DateTime"; break;
case "smallint": csharpType = "short"; break;
case "smallmoney": csharpType = "decimal"; break;
case "sql_variant": csharpType = "object"; break;
case "sysname": csharpType = "object"; break;
case "text": csharpType = "string"; break;
case "time": csharpType = "TimeSpan"; break;
case "timestamp": csharpType = "byte[]"; break;
case "tinyint": csharpType = "byte"; break;
case "uniqueidentifier": csharpType = "Guid"; break;
case "varbinary": csharpType = "byte[]"; break;
case "varchar": csharpType = "string"; break;
case "xml": csharpType = "string"; break;
default: csharpType = "object"; break;
}
return csharpType;
}
public static Type MapCommonType(string dbtype)
{
if (string.IsNullOrEmpty(dbtype)) return Type.Missing.GetType();
dbtype = dbtype.ToLower();
Type commonType = typeof(object);
switch (dbtype)
{
case "bigint": commonType = typeof(long); break;
case "binary": commonType = typeof(byte[]); break;
case "bit": commonType = typeof(bool); break;
case "char": commonType = typeof(string); break;
case "date": commonType = typeof(DateTime); break;
case "datetime": commonType = typeof(DateTime); break;
case "datetime2": commonType = typeof(DateTime); break;
case "datetimeoffset": commonType = typeof(DateTimeOffset); break;
case "decimal": commonType = typeof(decimal); break;
case "float": commonType = typeof(double); break;
case "image": commonType = typeof(byte[]); break;
case "int": commonType = typeof(int); break;
case "money": commonType = typeof(decimal); break;
case "nchar": commonType = typeof(string); break;
case "ntext": commonType = typeof(string); break;
case "numeric": commonType = typeof(decimal); break;
case "nvarchar": commonType = typeof(string); break;
case "real": commonType = typeof(Single); break;
case "smalldatetime": commonType = typeof(DateTime); break;
case "smallint": commonType = typeof(short); break;
case "smallmoney": commonType = typeof(decimal); break;
case "sql_variant": commonType = typeof(object); break;
case "sysname": commonType = typeof(object); break;
case "text": commonType = typeof(string); break;
case "time": commonType = typeof(TimeSpan); break;
case "timestamp": commonType = typeof(byte[]); break;
case "tinyint": commonType = typeof(byte); break;
case "uniqueidentifier": commonType = typeof(Guid); break;
case "varbinary": commonType = typeof(byte[]); break;
case "varchar": commonType = typeof(string); break;
case "xml": commonType = typeof(string); break;
default: commonType = typeof(object); break;
}
return commonType;
}
}
#endregion
#>
上面的代码就是查询数据库中的表和字段。
2、同样添加另一个T4模板文件，并修改后缀名Manager.ttinclude
<#@ assembly name="System.Data.Linq" #><#@ assembly name="EnvDTE" #><#@ assembly name="System.Xml" #><#@ assembly name="System.Xml.Linq" #><#@ import namespace="System.Collections.Generic" #><#@ import namespace="System.IO" #><#@ import namespace="System.Text" #><#@ import namespace="Microsoft.VisualStudio.TextTemplating" #><#+ // https://raw.github.com/damieng/DamienGKit // http://damieng.com/blog/2009/11/06/multiple-outputs-from-t4-made-easy-revisited // Manager class records the various blocks so it can split them up class Manager { private class Block { public String Name; public int Start, Length; public bool IncludeInDefault; } private Block currentBlock; private readonly List<Block> files = new List<Block>(); private readonly Block footer = new Block(); private readonly Block header = new Block(); private readonly ITextTemplatingEngineHost host; private readonly StringBuilder template; protected readonly List<String> generatedFileNames = new List<String>(); public static Manager Create(ITextTemplatingEngineHost host, StringBuilder template) { return (host is IServiceProvider) ? new VSManager(host, template) : new Manager(host, template); } public void StartNewFile(String name) { if (name == null) throw new ArgumentNullException("name"); CurrentBlock = new Block { Name = name }; } public void StartFooter(bool includeInDefault = true) { CurrentBlock = footer; footer.IncludeInDefault = includeInDefault; } public void StartHeader(bool includeInDefault = true) { CurrentBlock = header; header.IncludeInDefault = includeInDefault; } public void EndBlock() { if (CurrentBlock == null) return; CurrentBlock.Length = template.Length - CurrentBlock.Start; if (CurrentBlock != header && CurrentBlock != footer) files.Add(CurrentBlock); currentBlock = null; } public virtual void Process(bool split, bool sync = true) { if (split) { EndBlock(); String headerText = template.ToString(header.Start, header.Length); String footerText = template.ToString(footer.Start, footer.Length); String outputPath = Path.GetDirectoryName("host.TemplateFile"); files.Reverse(); if (!footer.IncludeInDefault) template.Remove(footer.Start, footer.Length); foreach(Block block in files) { String fileName = Path.Combine(outputPath, block.Name); String content = headerText + template.ToString(block.Start, block.Length) + footerText; generatedFileNames.Add(fileName); CreateFile(fileName, content); template.Remove(block.Start, block.Length); } if (!header.IncludeInDefault) template.Remove(header.Start, header.Length); } } protected virtual void CreateFile(String fileName, String content) { if (IsFileContentDifferent(fileName, content)) File.WriteAllText(fileName, content); } public virtual String GetCustomToolNamespace(String fileName) { return null; } public virtual String DefaultProjectNamespace { get { return null; } } protected bool IsFileContentDifferent(String fileName, String newContent) { return !(File.Exists(fileName) && File.ReadAllText(fileName) == newContent); } private Manager(ITextTemplatingEngineHost host, StringBuilder template) { this.host = host; this.template = template; } private Block CurrentBlock { get { return currentBlock; } set { if (CurrentBlock != null) EndBlock(); if (value != null) value.Start = template.Length; currentBlock = value; } } private class VSManager: Manager { private readonly EnvDTE.ProjectItem templateProjectItem; private readonly EnvDTE.DTE dte; private readonly Action<String> checkOutAction; private readonly Action<List<String>> projectSyncAction; public override String DefaultProjectNamespace { get { return templateProjectItem.ContainingProject.Properties.Item("DefaultNamespace").Value.ToString(); } } public override String GetCustomToolNamespace(string fileName) { return dte.Solution.FindProjectItem(fileName).Properties.Item("CustomToolNamespace").Value.ToString(); } public override void Process(bool split, bool sync) { if (templateProjectItem.ProjectItems == null) return; base.Process(split, sync); if (sync) projectSyncAction.EndInvoke(projectSyncAction.BeginInvoke(generatedFileNames, null, null)); } protected override void CreateFile(String fileName, String content) { if (IsFileContentDifferent(fileName, content)) { CheckoutFileIfRequired(fileName); File.WriteAllText(fileName, content); } } internal VSManager(ITextTemplatingEngineHost host, StringBuilder template) : base(host, template) { var hostServiceProvider = (IServiceProvider)host; if (hostServiceProvider == null) throw new ArgumentNullException("Could not obtain IServiceProvider"); dte = (EnvDTE.DTE) hostServiceProvider.GetService(typeof(EnvDTE.DTE)); if (dte == null) throw new ArgumentNullException("Could not obtain DTE from host"); templateProjectItem = dte.Solution.FindProjectItem(host.TemplateFile); checkOutAction = fileName => dte.SourceControl.CheckOutItem(fileName); projectSyncAction = keepFileNames => ProjectSync(templateProjectItem, keepFileNames); } private static void ProjectSync(EnvDTE.ProjectItem templateProjectItem, List<String> keepFileNames) { var keepFileNameSet = new HashSet<String>(keepFileNames); var projectFiles = new Dictionary<String, EnvDTE.ProjectItem>(); var originalFilePrefix = Path.GetFileNameWithoutExtension(templateProjectItem.FileNames[0]) + "."; foreach (EnvDTE.ProjectItem projectItem in templateProjectItem.ProjectItems) projectFiles.Add(projectItem.FileNames[0], projectItem); // Remove unused items from the project foreach (var pair in projectFiles) if (!keepFileNames.Contains(pair.Key) && !(Path.GetFileNameWithoutExtension(pair.Key) + ".").StartsWith(originalFilePrefix)) pair.Value.Delete(); // Add missing files to the project foreach(String fileName in keepFileNameSet) if (!projectFiles.ContainsKey(fileName)) templateProjectItem.ProjectItems.AddFromFile(fileName); } private void CheckoutFileIfRequired(String fileName) { var sc = dte.SourceControl; if (sc != null && sc.IsItemUnderSCC(fileName) && !sc.IsItemCheckedOut(fileName)) checkOutAction.EndInvoke(checkOutAction.BeginInvoke(fileName, null, null)); } } } #>
上面的代码是用来生成多文件的。
3、新建T4模板文件PocoManager.tt，然后引入上面两个ttinclude文件。
<#@ template debug="false" hostspecific="true" language="C#" #> <#@ assembly name="System.Data" #> <#@ assembly name="System.Data.DataSetExtensions.dll" #> <#@ assembly name="System.xml" #> <#@ import namespace="System" #> <#@ import namespace="System.Xml" #> <#@ import namespace="System.Collections.Generic" #> <#@ import namespace="System.Data" #> <#@ import namespace="System.Data.SqlClient" #> <#@ import namespace="System.IO" #> <#@ assembly name="System.Core" #> <#@ import namespace="System.Linq" #> <#@include file="$(ProjectDir)Models\DbHelper.ttinclude"#> <#@include file="$(ProjectDir)Models\Manager.ttinclude"#> <# var manager = Manager.Create(Host, GenerationEnvironment); #> <# manager.StartHeader(); #> using System; using System.Collections.Generic; namespace My.Model { <# manager.EndBlock(); #> <# foreach (DbTable db in DbHelper.GetDbTables(config.ConnectionString, config.DbDatabase)) { string tb_name=db.TableName; manager.StartNewFile(tb_name+".cs");#> /// <summary> /// 实体-<#=tb_name#> /// </summary> public partial class <#=tb_name#> { <# foreach(DbColumn column in DbHelper.GetDbColumns(config.ConnectionString, config.DbDatabase, tb_name)){#> /// <summary> /// <#=column.Remark#> /// </summary> public <#= column.CSharpType#><# if(column.CommonType.IsValueType && column.IsNullable){#>?<#}#> <#=column.ColumnName#> { get; set; }<#}#> } <#//manager.EndBlock(); } //conn.Close(); #> <# manager.StartFooter(); #> } <# manager.EndBlock(); #> <# manager.Process(true); #> <#+ public class config { public static readonly string ConnectionString="Data Source=(local);Integrated Security=true;Initial Catalog=CarSYS;"; public static readonly string DbDatabase="CarSYS"; } #>
按Ctrl+S生成的代码如下：
using System; using System.Collections.Generic; namespace My.Model { /// <summary> /// 实体-Brand /// </summary> public partial class Brand { /// <summary> /// 编号 /// </summary> public int BrandId { get; set; } /// <summary> /// /// </summary> public string BrandName { get; set; } } /// <summary> /// 实体-Car /// </summary> public partial class Car { /// <summary> /// 编号 /// </summary> public int CarId { get; set; } /// <summary> /// 车名称 /// </summary> public string CarName { get; set; } /// <summary> /// 品牌编号 /// </summary> public int? BrandId { get; set; } /// <summary> /// 实体图的文件名 /// </summary> public string Picture { get; set; } /// <summary> /// 官方价 /// </summary> public decimal OfficialPrice { get; set; } /// <summary> /// 点击率 /// </summary> public int? Click { get; set; } } /// <summary> /// 实体-Product /// </summary> public partial class Product { /// <summary> /// /// </summary> public Guid Id { get; set; } /// <summary> /// /// </summary> public string NAME { get; set; } /// <summary> /// /// </summary> public decimal Price { get; set; } } }
方式二
操作方式一种的步骤2，然后新建T4模板Manager.tt，引入Manager.ttinclude
<#@ template debug="false" hostspecific="true" language="C#" #> <#@ assembly name="System.Data" #> <#@ assembly name="System.xml" #> <#@ import namespace="System.Collections.Generic" #> <#@ import namespace="System.Data.SqlClient" #> <#@ import namespace="System.Data" #> <#@ assembly name="System.Core" #> <#@ import namespace="System.Linq" #> <#@include file="$(ProjectDir)Models\Manager.ttinclude"#> <# var manager = Manager.Create(Host, GenerationEnvironment); #> <# manager.StartHeader(); #> using System; using System.Collections.Generic; namespace My.Model { <# manager.EndBlock(); #> <# string connectionString= "server=localhost;database=CarSYS;uid=sa;pwd=1127;"; SqlConnection conn = new SqlConnection(connectionString); conn.Open(); string selectQuery ="SET FMTONLY ON; select * from @tableName; SET FMTONLY OFF;"; SqlCommand command = new SqlCommand(selectQuery,conn); SqlDataAdapter ad = new SqlDataAdapter(command); System.Data.DataSet ds = new DataSet(); System.Data.DataTable schema = conn.GetSchema("Tables"); foreach(System.Data.DataRow row in schema.Rows) { ds.Tables.Clear(); string tb_name =row["TABLE_NAME"].ToString().Replace(" ","_"); string tb_type=row["TABLE_TYPE"].ToString(); if(tb_type!="BASE TABLE") { continue; } command.CommandText = selectQuery.Replace("@tableName","["+row["TABLE_NAME"].ToString()+"]"); ad.FillSchema(ds,SchemaType.Mapped,tb_name); manager.StartNewFile(tb_name+".cs"); #> /// <summary> /// 实体-<#=tb_name#> /// </summary> public partial class <#=tb_name#> { <# //PushIndent(" "); foreach (DataColumn dc in ds.Tables[0].Columns) { string dataTypeName=dc.DataType.Name=="Byte[]"?"DateTime":dc.DataType.Name; #> /// <summary> /// <#=dc#> /// </summary> <# WriteLine("public " + dataTypeName + (dc.AllowDBNull && dataTypeName.ToLower() != "string" ? "? ": " ") + dc.ColumnName + " { get; set; }"); } PopIndent(); #> } <# manager.EndBlock(); } conn.Close(); #> <# manager.StartFooter(); #> } <# manager.EndBlock(); #> <# manager.Process(true); #>
按Ctrl+S生成的代码如下：
using System; using System.Collections.Generic; namespace My.Model { /// <summary> /// 实体-Brand /// </summary> public partial class Brand { /// <summary> /// BrandId /// </summary> public Int32 BrandId { get; set; } /// <summary> /// BrandName /// </summary> public String BrandName { get; set; } } /// <summary> /// 实体-Car /// </summary> public partial class Car { /// <summary> /// CarId /// </summary> public Int32 CarId { get; set; } /// <summary> /// CarName /// </summary> public String CarName { get; set; } /// <summary> /// BrandId /// </summary> public Int32? BrandId { get; set; } /// <summary> /// Picture /// </summary> public String Picture { get; set; } /// <summary> /// OfficialPrice /// </summary> public Decimal OfficialPrice { get; set; } /// <summary> /// Click /// </summary> public Int32? Click { get; set; } } /// <summary> /// 实体-Product /// </summary> public partial class Product { /// <summary> /// Id /// </summary> public Guid Id { get; set; } /// <summary> /// NAME /// </summary> public String NAME { get; set; } /// <summary> /// Price /// </summary> public Decimal Price { get; set; } } }
数据库CarSYS的脚本下载地址：
USE [master] GO /****** Object: Database [CarSYS] Script Date: 2/17/2017 5:33:04 PM ******/ CREATE DATABASE [CarSYS] CONTAINMENT = NONE ON PRIMARY ( NAME = N'CarSYS', FILENAME = N'F:\DatabaseFile\CarSYS.mdf' , SIZE = 212992KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB ) LOG ON ( NAME = N'CarSYS_log', FILENAME = N'F:\DatabaseFile\CarSYS_log.ldf' , SIZE = 321088KB , MAXSIZE = 2048GB , FILEGROWTH = 10%) GO ALTER DATABASE [CarSYS] SET COMPATIBILITY_LEVEL = 110 GO IF (1 = FULLTEXTSERVICEPROPERTY('IsFullTextInstalled')) begin EXEC [CarSYS].[dbo].[sp_fulltext_database] @action = 'enable' end GO ALTER DATABASE [CarSYS] SET ANSI_NULL_DEFAULT OFF GO ALTER DATABASE [CarSYS] SET ANSI_NULLS OFF GO ALTER DATABASE [CarSYS] SET ANSI_PADDING OFF GO ALTER DATABASE [CarSYS] SET ANSI_WARNINGS OFF GO ALTER DATABASE [CarSYS] SET ARITHABORT OFF GO ALTER DATABASE [CarSYS] SET AUTO_CLOSE OFF GO ALTER DATABASE [CarSYS] SET AUTO_CREATE_STATISTICS ON GO ALTER DATABASE [CarSYS] SET AUTO_SHRINK OFF GO ALTER DATABASE [CarSYS] SET AUTO_UPDATE_STATISTICS ON GO ALTER DATABASE [CarSYS] SET CURSOR_CLOSE_ON_COMMIT OFF GO ALTER DATABASE [CarSYS] SET CURSOR_DEFAULT GLOBAL GO ALTER DATABASE [CarSYS] SET CONCAT_NULL_YIELDS_NULL OFF GO ALTER DATABASE [CarSYS] SET NUMERIC_ROUNDABORT OFF GO ALTER DATABASE [CarSYS] SET QUOTED_IDENTIFIER OFF GO ALTER DATABASE [CarSYS] SET RECURSIVE_TRIGGERS OFF GO ALTER DATABASE [CarSYS] SET DISABLE_BROKER GO ALTER DATABASE [CarSYS] SET AUTO_UPDATE_STATISTICS_ASYNC OFF GO ALTER DATABASE [CarSYS] SET DATE_CORRELATION_OPTIMIZATION OFF GO ALTER DATABASE [CarSYS] SET TRUSTWORTHY OFF GO ALTER DATABASE [CarSYS] SET ALLOW_SNAPSHOT_ISOLATION OFF GO ALTER DATABASE [CarSYS] SET PARAMETERIZATION SIMPLE GO ALTER DATABASE [CarSYS] SET READ_COMMITTED_SNAPSHOT OFF GO ALTER DATABASE [CarSYS] SET HONOR_BROKER_PRIORITY OFF GO ALTER DATABASE [CarSYS] SET RECOVERY FULL GO ALTER DATABASE [CarSYS] SET MULTI_USER GO ALTER DATABASE [CarSYS] SET PAGE_VERIFY CHECKSUM GO ALTER DATABASE [CarSYS] SET DB_CHAINING OFF GO ALTER DATABASE [CarSYS] SET FILESTREAM( NON_TRANSACTED_ACCESS = OFF ) GO ALTER DATABASE [CarSYS] SET TARGET_RECOVERY_TIME = 0 SECONDS GO ALTER DATABASE [CarSYS] SET READ_WRITE GO
扩展：我们还可以在搭建项目框架的时候，通过反射等技术来自己编写T4模板。
当然，我们还可以通过Entity Framework Power Tools这个开发神器来生成我们的EF Code代码。
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