ASP.NET MVC：实现我们自己的视图引擎

源代码网整理以下以下为引用的内容：

源代码网整理以下protected virtual void RenderView(string viewName, string
masterName, object viewData) {
           ViewContext viewContext = new ViewContext(
ControllerContext, viewName, masterName, viewData, TempData);
           ViewEngine.RenderView(viewContext);
}//

源代码网整理以下以下为引用的内容：

源代码网整理以下＜!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"＞
＜html xmlns=""http://www.w3.org/1999/xhtml"">
http://www.w3.org/1999/xhtml" ＞
＜head＞
    ＜title＞自定义视图引擎示例＜/title＞
＜/head＞
＜body＞
    ＜h1＞{$ViewData.Title}＜/h1＞
    ＜p＞{$ViewData.Message}＜/p＞
    ＜p＞The following fruit is part of a string array: {$ViewData.FruitStrings[1]}＜/p＞
    ＜p＞The following fruit is part of an object array: {$ViewData.FruitObjects[1].Name}＜/p＞
    ＜p＞Here"s an undefined variable: {$UNDEFINED}＜/p＞
＜/body＞
＜ ml＞

源代码网整理以下以下为引用的内容：

源代码网整理以下public class SimpleViewEngine : IViewEngine
    {
        #region Private members

源代码网整理以下        IViewLocator _viewLocator = null;

源代码网整理以下        #endregion

源代码网整理以下        #region IViewEngine Members : RenderView()

源代码网整理以下        public void RenderView(ViewContext viewContext)
        {
            string viewLocation = ViewLocator.GetViewLocation
                                 (viewContext, viewContext.ViewName);
            if (string.IsNullOrEmpty(viewLocation))
            {
                throw new InvalidOperationException(string.Format
                    ("View {0} could not be found.",                  viewContext.ViewName));
            }

源代码网整理以下            string viewPath = viewContext.HttpContext.Request.MapPath(viewLocation);
            string viewTemplate = File.ReadAllText(viewPath);

源代码网整理以下            //以下为模板解析
            IRenderer renderer = new PrintRenderer();
            viewTemplate = renderer.Render(viewTemplate, viewContext);

源代码网整理以下            viewContext.HttpContext.Response.Write(viewTemplate);
        }

源代码网整理以下        #endregion

源代码网整理以下        #region Public properties : ViewLocator

源代码网整理以下        public IViewLocator ViewLocator
        {
            get
            {
                if (this._viewLocator == null)
                {
                    this._viewLocator = new SimpleViewLocator();
                }
                return this._viewLocator;
            }
            set
            {
                this._viewLocator = value;
            }
        }

源代码网整理以下        #endregion
    }