时间:2021-12-13 12:26:57 | 栏目:.NET代码 | 点击:次
最近在研究ASP.NET MVC生成静态页,那么今天也算个学习笔记吧!
实现原理及步骤:
1.通过ViewEngines.Engines.FindView查找到对应的视图,如果是部分视图,则用:ViewEngines.Engines.FindPartialView;
2.设置上下文对象里的Model;
3.调用视图的Render()方法,将渲染结果保存到物理静态文件;
using System; using System.IO; using System.Text; using System.Web.Mvc; namespace Whir.Foundation.UI { /// <summary> /// 描述:静态页面生成帮助类 /// </summary> public class StaticPageHelper { /// <summary> /// 根据View视图生成静态页面 /// </summary> /// <param name="htmlPath">存放静态页面所在绝对路径</param> /// <param name="context">ControllerContext</param> /// <param name="viewPath">视图名称</param> /// <param name="masterName">模板视图名称</param> /// <param name="model">参数实体模型</param> /// <param name="html">返回信息</param> /// <param name="isPartial">是否分布视图</param> /// <returns>生成成功返回true,失败false</returns> public static AjaxResult GenerateStaticPage(string viewPath, string htmlPath, ControllerContext context, object model = null, bool isPartial = false, string masterName = "") { var ajaxResult = new AjaxResult(); try { //创建存放静态页面目录 if (!Directory.Exists(Path.GetDirectoryName(htmlPath))) { Directory.CreateDirectory(Path.GetDirectoryName(htmlPath)); } //删除已有的静态页面 if (File.Exists(htmlPath)) { File.Delete(htmlPath); } ViewEngineResult result = null; if (isPartial) { result = ViewEngines.Engines.FindPartialView(context, viewPath); } else { result = ViewEngines.Engines.FindView(context, viewPath, masterName); } if (model != null) { context.Controller.ViewData.Model = model; } /* * 设置临时数据字典作为静态化标识 * 可以在视图上使用TempData["IsStatic"]来控制某些元素显示。 */ if (!context.Controller.TempData.ContainsKey("IsStatic")) { context.Controller.TempData.Add("IsStatic", true); } if (result.View != null) { using (var sw = new StringWriter()) { var viewContext = new ViewContext(context, result.View, context.Controller.ViewData, context.Controller.TempData, sw); result.View.Render(viewContext, sw); string body = sw.ToString(); File.WriteAllText(htmlPath, body, Encoding.UTF8); ajaxResult.IsSucess = true; ajaxResult.Body = "存放路径:" + htmlPath; } } else { ajaxResult.IsSucess = false; ajaxResult.Body = "生成静态页面失败!未找到视图!"; } } catch (IOException ex) { ajaxResult.IsSucess = false; ajaxResult.Body = ex.Message; } catch (Exception ex) { ajaxResult.IsSucess = false; ajaxResult.Body = ex.Message; } return ajaxResult; } } }
AjaxResult 是自己封装的一个类,您也可以用自己封装的类代替。
public class AjaxResult { public bool IsSucess { get; set; } public string Body { get; set; } }