解说还是围绕着QuickStart展开的
在第二章的基础上添加引用
Microsoft.Practices.Unity
Microsoft.Practices.Unity.Configuration
System.configuration
然后在配置文件中添加以下节
1
<unity>
2 <containers>
3 <container name="dataContainer">
4 <extensions>
5 <add type="Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Unity.EnterpriseLibraryCoreExtension, Microsoft.Practices.EnterpriseLibrary.Common" />
6 <add type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.Unity.DataAccessBlockExtension, Microsoft.Practices.EnterpriseLibrary.Data" />
7 </extensions>
8 </container>
9 </containers>
10 </unity>
<unity>2
<containers>3
<container name="dataContainer">4
<extensions>5
<add type="Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Unity.EnterpriseLibraryCoreExtension, Microsoft.Practices.EnterpriseLibrary.Common" />6
<add type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.Unity.DataAccessBlockExtension, Microsoft.Practices.EnterpriseLibrary.Data" />7
</extensions>8
</container>9
</containers>10
</unity>并且在configSections中注册该节点：
<section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration" />
在DAO中标记依赖注入
1public class SalesData
2
{
3
private Database db;
4
5 [InjectionConstructor]
6 public SalesData([Dependency]Database db)
7
{
8 this.db = db;
9
}
10
11
//以下代码省略
public class SalesData2
{
3
private Database db;4
5
[InjectionConstructor]6
public SalesData([Dependency]Database db)7
{
8
this.db = db;9
}10
11
//以下代码省略[InjectionConstructor]标签用来标记注入哪个构造函数。
只有一个构造函数的话，该标签可以省略。
有两个构造函数的时候，会采用有参数的构造函数。
有该标签的时候，采用被标记的构造函数。
[Dependency]用来标记依赖。
下面是Main的代码
1private static void Main()
2{
3 IUnityContainer container = new UnityContainer();
4
5 //从配置文件中读取unity节点
6 UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");
7 //用该节点的信息配置container
8 section.Containers["dataContainer"].Configure(container);
9
10 //用容器配置创建QuickStartForm
11 AppForm = container.Resolve<QuickStartForm>();
12
13 Application.Run(AppForm);
14}
private static void Main()2
{3
IUnityContainer container = new UnityContainer();4
5
//从配置文件中读取unity节点6
UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");7
//用该节点的信息配置container8
section.Containers["dataContainer"].Configure(container);9
10
//用容器配置创建QuickStartForm11
AppForm = container.Resolve<QuickStartForm>();12
13
Application.Run(AppForm);14
}Unity会自动配置相关的依赖关系
