ASP.NET MVC SportStore 购物网示例(2)
连接数据库
创建SportStore数据库。
创建表 Products
添加一些演示数据:
设置Linq to SQL
注意：需要引用 System.Data.Linq。
[Table(Name="Products")]
public class Product
{
[Column(IsPrimaryKey = true, IsDbGenerated = true, AutoSync = AutoSync.OnInsert)]
public int ProductID { get; set; }
[Column]
public string Name { get; set; }
[Column]
public string Description { get; set; }
[Column]
public decimal Price { get; set; }
[Column]
public string Category { get; set; }
}
创建一个真实的响应
namespace DomainModel.Concrete
{
public class SqlProductsRepository : IProductsRepository
{
private Table<Product> productsTable;
public SqlProductsRepository(string connectionString)
{
productsTable = (new DataContext(connectionString)).GetTable<Product>();
}
public IQueryable<Product> Products
{
get { return productsTable; }
}
}
}
修改 ProductsController构造函数，连接到实际的sql操作.
public ProductsController()
{
// This is just temporary until we have more infrastructure in place
//productsRepository = new FakeProductsRepository();
// 临时使用
string connString = @"data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|SportStore.mdf;User Instance=true";
productsRepository = new SqlProductsRepository(connString);
}
F5编译运行。
使用Inversion of Control
下载Castle-Windsor-2.0 Castle-Windsor项目网站 http://www.castleproject.org。
为Web项目引用 Castle.Core、Castle.MicroKernel、Castle.Windsor。
创建一个自定义的Controller Factory
在WebUI根目录创建类
public class WindsorControllerFactory : DefaultControllerFactory
{
WindsorContainer container;
// The constructor:
// 1. Sets up a new IoC container
// 2. Registers all components specified in web.config
// 3. Registers all controller types as components
public WindsorControllerFactory()
{
// Instantiate a container, taking configuration from web.config
container = new WindsorContainer(
new XmlInterpreter(new ConfigResource("castle"))
);
// Also register all the controller types as transient
var controllerTypes = from t in Assembly.GetExecutingAssembly().GetTypes()
where typeof(IController).IsAssignableFrom(t)
select t;
foreach (Type t in controllerTypes)
container.AddComponentLifeStyle(t.FullName, t, LifestyleType.Transient);
}
// Constructs the controller instance needed to service each request
protected override IController GetControllerInstance(System.Web.Routing.RequestContext requestContext, Type controllerType)
{
return (IController)container.Resolve(controllerType);
}}
打开web.config文件添加
<add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"/>
</connectionStrings>
插入castle配置节
打开Global.asax.cs 添加自定义的Controller。
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RegisterRoutes(RouteTable.Routes);
ControllerBuilder.Current.SetControllerFactory(new WindsorControllerFactory());
}
使用自己的注入
ProductsController是通过硬编码依赖于SqlProductsRepository。通过使用 Ioc来将实际使用的Controller通过配置文件来动态载入。
修改ProductsController的构造函数。
public ProductsController(IProductsRepository productsRepository)
{
this.productsRepository = productsRepository;
}
修改配置文件
<castle>
<components>
<component id="ProdsRepository"
service="DomainModel.Abstract.IProductsRepository, DomainModel"
type="DomainModel.Concrete.SqlProductsRepository, DomainModel">
<parameters>
<connectionString>data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|SportStore.mdf;User Instance=true</connectionString>
</parameters>
</component>
</components>
</castle>
设置IoC组件的lifestyle。
<component id="ProdsRepository"
service="DomainModel.Abstract.IProductsRepository, DomainModel"
type="DomainModel.Concrete.SqlProductsRepository, DomainModel"
lifestyle="PerWebRequest"
>
Castle Windsor可以选的 lifystyle有 Transient, Singleton, PerWebRequest, Pooled, and Custom
注册 Windsor的 PreRequestLifestyle到 <httpModules>
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="PerRequestLifestyle"
type="Castle.MicroKernel.Lifestyle.PerWebRequestLifestyleModule, />
Castle.MicroKernel"
</httpModules>
F5 RUN
转载请注明出处! Author: im@xingquan.org
