详解ASP.NET MVC 利用Razor引擎生成静态页

时间:2022-09-17 21:20:36

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;

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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。

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public class AjaxResult
{
  public bool IsSucess { get; set; }
  public string Body { get; set; }
}

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。

原文链接:http://blog.csdn.net/a497785609/article/details/51354851