public IAspect[] CreateAspects(WebPageContext context)
{
IWebPageLocator locator = WebPageLocatorFactory.CreateLocator(context.PathExtension);
var aspects = locator.GetAspects(context.VirtualPath);
if (aspects == null)
{
if (!context.IsValidPath())
{
//如果既没有后台文件，也没有前台文件，那么资源不存在
throw new HttpException(404, string.Format(Strings.RequestResourceNotExist, context.VirtualPath));
}
aspects = locator.GetDefaultAspects(); //如果有前台文件那么用默认的处理
}
return(aspects);
}
private static WebPage CreatePage(WebPageContext context)
{
IWebPageLocator locator = WebPageLocatorFactory.CreateLocator(context.PathExtension);
IHttpHandler handler = locator.GetHandler(context.VirtualPath);//利用资源定位器得到资源的Handler类型
if (handler == null)
{
if (!context.IsValidPath())
{
//如果既没有后台文件，也没有前台文件，那么资源不存在
throw new HttpException(404, string.Format(Strings.RequestResourceNotExist, context.VirtualPath));
}
handler = locator.GetDefaultHandler(); //如果有前台文件那么用默认的处理
}
WebPage page = handler as WebPage;
if (page == null)
{
throw new TypeMismatchException(handler.GetType(), typeof(WebPage));
}
return(page);
}