在项目中使用Castle IOC容器，Asp.net程序中如何得到Castle容器内。
可以如下实现：
1、Gloabal实现接口IContainerAccessor
public class Global : System.Web.HttpApplication, IContainerAccessor
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
private static WindsorContainer container;
public Global()
{
InitializeComponent();
}
protected void Application_Start(Object sender, EventArgs e)
{
container = new MyContainer(new XmlInterpreter("app_config.xml"));
}
protected void Session_Start(Object sender, EventArgs e)
{
}
……
protected void Application_End(Object sender, EventArgs e)
{
container.Dispose();
}
#region IContainerAccessor implementation
public IWindsorContainer Container
{
get { return container; }
}
}
2、使用如下类来获取容器实例，这段代码来自Castle.MVC
/// <summary>
/// Uses the HttpContext and the <see cref="IContainerAccessor"/>
/// to access the container instance.
/// </summary>
public abstract class ContainerWebAccessorUtil
{
/// <summary>
/// 从application中获取一个容器实例
/// </summary>
/// <returns>返回一个 IWindsorContainer</returns>
public static IWindsorContainer ObtainContainer()
{
IContainerAccessor containerAccessor =
HttpContext.Current.ApplicationInstance as IContainerAccessor;
if (containerAccessor == null)
{
throw new ApplicationException("你必须在HttpApplication中实现接口 IContainerAccessor 暴露容器的属性”);
}
IWindsorContainer container = containerAccessor.Container;
if (container == null)
{
throw new ApplicationException("HttpApplication 得不到容器的实例");
}
return container;
}
}
3、在具体的用户控件，页面的后置代码中通过ContainerWebAccessorUtil. ObtainContainer()获取容器实例。当然如果使用Castle.MVC，MVC框架也是这样用的,自己就不要这么麻烦了，可以将这个写在页面和控件的基类中。