RegisterType
假設我們有兩個介面ILogger,IStopLightTimer,對這兩個介面分別有兩個實現,TraceLogger,RealTimeTimer.
The two interfaces are ILogger, which Unity maps to the concrete service class named TraceLogger, and IStoplightTimer, which Unity maps to the concrete service class named RealTimeTimer.
在Unity中我們可以用兩種方式來來map介面和實現的關係。
1、代碼形式
IUnityContainer container = new UnityContainer()
.RegisterType<ILogger, TraceLogger>()
.RegisterType<IStoplightTimer, RealTimeTimer>();
The mapping registration occurs in the Program file that executes when the application starts.
2、設定檔
在設定檔中添加如下資訊:
<container name="containerOne">
<types>
<!-- Default (un-named) mapping for ILogger to TraceLogger-->
<type type="ILogger" mapTo="TraceLogger" />
但在代碼中應該這樣引入:
IUnityContainer myContainer = new UnityContainer(); UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");
section.Containers["containerOne"].Configure(myContainer);
以上是得到配置資訊。
以上2種方式其實是在Unity中註冊一個介面的實現。
通過下面的Resolve方法得到一個TraceLogger執行個體。
ILogger myLogger = myContainer.Resolve<ILogger>();