aspp.netMVC自定义视图引擎

采用xslt作为ASP.NETmvc的视图引擎有几个好处

1彻底的实现视图和逻辑的分离（采用ASPX你无法控制别人在ASPX里面是否写逻辑代码）

2彻底的实现强类型的MODEL（自己定义视图引擎只是先一种数据方式）

3借助MODEL序列化为XML，进行XSLT转换，实现页面个性定制

4xslt的基本语法可以完成一部分JS的工作，而这正是页面基本控件布局和展示所需要的

5xslt的自定义函数可以进行有效的扩展

以前的流不是很了解折腾了一周总算是明白了

一个典型的目录如下

文件的结构也是比较清晰的

实现仅需要实现一个借口和集成一个类

代码如下

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
using System.Web.Routing;

namespace myview
{
    public class MyViewEngine:VirtualPathProviderViewEngine
    {

        private string _AppPath = string.Empty;
        public MyViewEngine()
        {
            ViewLocationFormats = new[]{
                 "/Views/{1}/{0}.aspx"
            };
        }
        protected override IView CreatePartialView(ControllerContext controllerContext, string partialPath)
        {
            return this.CreateView(controllerContext, partialPath, String.Empty);
        }

        protected override IView CreateView(ControllerContext controllerContext, string viewPath, string masterPath)
        {
            if (!string.IsNullOrEmpty(masterPath))
                throw new Exception("此处不能指定试图的名称");
            string actionname = controllerContext.RouteData.Values["action"].ToString();
            string controllername = controllerContext.RouteData.Values["controller"].ToString();
            masterPath = string.Format("/Views/Shared/{0}/{1}.xslt",controllername ,actionname); 
            return new xsltView(viewPath, masterPath);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
using System.Xml;
using System.IO;
using System.Xml.Xsl;
using System.Web;

namespace myview
{
    public class xsltView:IView
    {

        // 视图文件的物理路径
        private string _viewPhysicalPath;
        // 模板文件的物理路径
        private string _xsltPhysicalPath;

        public xsltView(string viewPhysicalPath, string masterPhysicalPath)
        {
            _viewPhysicalPath = viewPhysicalPath;
            _xsltPhysicalPath = masterPhysicalPath;
        }


        void IView.Render(ViewContext viewContext, System.IO.TextWriter writer)
        {
          

            XslCompiledTransform transform = new XslCompiledTransform();
            //xslt文件的路径
          
            string XsltFileDir =System.Web.HttpContext.Current.Server.MapPath(_xsltPhysicalPath);
            try
            {
                transform.Load(XsltFileDir);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        
          
            MemoryStream fs = new MemoryStream();
           
            XmlReaderSettings redset = new XmlReaderSettings();
            redset.ProhibitDtd = true;
            XsltArgumentList myarg = new XsltArgumentList();
            myarg.AddExtensionObject("myfn:utils", new MyXslExtension());

            System.Xml.Serialization.XmlSerializer xmlser = new System.Xml.Serialization.XmlSerializer(viewContext.ViewData.Model.GetType());
            xmlser.Serialize(fs, viewContext.ViewData.Model);

            fs.Position = 0;
         

            if (string.IsNullOrEmpty(System.Web.HttpContext.Current.Request.Params["debug"]))
            {
                fs.Flush();
            

                MemoryStream stream = new MemoryStream();
                XmlReader viewxmlreader = XmlReader.Create(fs, redset);
                try
                {
                    transform.Transform(viewxmlreader, myarg, stream);
                    viewxmlreader.Close();
                    fs.Close();
                    fs.Dispose();
                  
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                // transform.Transform(Server.MapPath("a.xml"), null, stream);
                stream.Position = 0;
                StreamReader reader = new StreamReader(stream, System.Text.Encoding.UTF8);
          
                // 呈现出解析后的内容
                writer.Write(reader.ReadToEnd());
                stream.Close();
                reader.Close();
                reader.Dispose();
            }
            else
            {

                StreamReader reader2 = new StreamReader(fs, System.Text.Encoding.UTF8);
                writer.Write(reader2.ReadToEnd());
                fs.Close();
                fs.Dispose();
                reader2.Close();
                reader2.Dispose();
         
               
            }
        }

    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace myview
{
    class MyXslExtension
    {
        public string FormatName(string firstName, string name)
        {
            return name + ", " + firstName;
        }
        public string GetLink()
        {
            return "http://www.cnblogs.com/qqloving/";
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt"
                 xmlns:utils="myfn:utils"
                exclude-result-prefixes="msxsl">
 
 
  <xsl:output
             method="html"
             encoding="utf-8"
             doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
             doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" omit-xml-declaration="yes" />

    <xsl:template match="/">
      <div style=" border-style:solid; border-1px;">
        <table class="style1">
  
              
            <xsl:for-each select="*">
       <tr>
            <td> 0
              <xsl:value-of select="@Name"/>
              <!--一 @表示匹配当前的属性 -->     
            </td>
         <td>1
           <xsl:value-of select="."/>
           <!--一 .表示匹配当前的值 -->
         </td>

         <td>2
           <xsl:value-of select="node()"/>
           <!--一 node()表示获取当前的值 -->
         </td>

         <td>
           3
           <xsl:value-of select="name()"/>
           <!--一 name()表示获取当前节点的名称 -->
         </td>
         <td>
           4
           <xsl:value-of select="utils:GetLink()"/>
           <!--一 name()表示获取当前节点的名称 -->
         </td>
          </tr>
             
              
            </xsl:for-each>
         
              
       
        </table>
      </div>
    </xsl:template>
</xsl:stylesheet>

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Security;
using System.Xml.Serialization;
namespace MvcApplication5.Models
{


    [Serializable]
    public class ChangePasswordModel
    {
      
        public string OldPassword { get; set; }

     
        public string NewPassword { get; set; }

        
        public string ConfirmPassword { get; set; }
    }
}
 public ActionResult Index()
        {
            ChangePasswordModel MYMODEL = new ChangePasswordModel();
            MYMODEL.ConfirmPassword = "123";
            MYMODEL.NewPassword = "456";
            MYMODEL.OldPassword = "345";

            return View(MYMODEL);
        }