利用UrlRewrite,asp.net动态生成htm页面
前段时间做项目,一直都在寻找一种动态生成htm页面的方法,要求配置简单,和项目无关。
功夫不负有心人,终于被我找到了,只需要在web.config中进行简单配置,就可以达到动态生成静态页面的效果,同时又不影响Url重定向。web.config中需要注意的配置节为<configuration>、<RewriteConfig>、<httpModules>、<httpHandlers>,在这些配置节里边都有注释,容易看懂。
<?xml version="1.0" encoding="utf-8"?>
<!--
注意: 除了手动编辑此文件以外,您还可以使用
Web 管理工具来配置应用程序的设置。可以使用 Visual Studio 中的
“网站”->“Asp.Net 配置”选项。
设置和注释的完整列表在
machine.config.comments 中,该文件通常位于
\Windows\Microsoft.Net\Framework\v2.x\Config 中
-->
<configuration>
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
<!-- RUL重写开始 -->
<configSections>
<section name="RewriterConfig" type="URLRewriter.Config.RewriterConfigSerializerSectionHandler, URLRewriter"/>
</configSections>
<RewriterConfig>
<Rules>
<!--地址重写规则-->
<!--首页,定位到静态页面-->
<RewriterRule>
<Type>Static</Type>
<LookFor>~/Default\.aspx</LookFor>
<SendTo>~/Default.htm</SendTo>
</RewriterRule>
<!--二级页面,定位到动态页面-->
<RewriterRule>
<Type>Dynamic</Type>
<LookFor>~/List\.aspx</LookFor>
<SendTo>~/Show.aspx</SendTo>
</RewriterRule>
</Rules>
</RewriterConfig>
<!-- RUL重写结束 -->
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
<appSettings/>
<connectionStrings/>
<system.web>
<!--
设置 compilation debug="true" 将调试符号插入
已编译的页面中。但由于这会
影响性能,因此只在开发过程中将此值
设置为 true。
-->
<httpModules>
<!--URL重写-->
<add type="URLRewriter.ModuleRewriter, URLRewriter" name="ModuleRewriter" />
</httpModules>
<httpHandlers>
<!--生成静态页面-->
<add verb="*" path="*.aspx" validate="false" type="URLRewriter.RewriterFactoryHandler, URLRewriter"/>
</httpHandlers>
<compilation debug="false" />
<!--
通过 <authentication> 节可以配置 ASP.NET 使用的
安全身份验证模式,
以标识传入的用户。
-->
<authentication mode="Forms" />
<!--
如果在执行请求的过程中出现未处理的错误,
则通过 <customErrors> 节可以配置相应的处理步骤。具体说来,
开发人员通过该节可以配置
要显示的 html 错误页
以代替错误堆栈跟踪。
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
<globalization requestEncoding="utf-8" responseEncoding="utf-8"/>
</system.web>
</configuration>
两个关键的类是ModuleRewriter和CreateHtmFactoryHandler
ModuleRewriter类用于Url重定向,代码如下:
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using System;
using System.Text.RegularExpressions;
using System.Configuration;
using URLRewriter.Config;
using System.Data;
using System.Web;
using System.Web.UI;
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namespace URLRewriter
{
/// <summary>
/// Provides a rewriting HttpModule.
/// </summary>
public class ModuleRewriter : BaseModuleRewriter
{
/// <summary>
/// This method is called during the module's BeginRequest event.
/// </summary>
/// <param name="requestedRawUrl">The RawUrl being requested (includes path and querystring).</param>
/// <param name="app">The HttpApplication instance.</param>
protected override void Rewrite(string requestedPath, System.Web.HttpApplication app)
{
//只对文件后缀为aspx页面有效
if (requestedPath.IndexOf(".aspx") != -1)
{
HttpContext httpContext = app.Context;
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// get the configuration rules
RewriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
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// iterate through each rule![](https://www.cnblogs.com/Images/dot.gif)
for (int i = 0; i < rules.Count; i++)
{
// get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory)
string lookFor = "^" + RewriterUtils.ResolveUrl(httpContext.Request.ApplicationPath, rules[i].LookFor) + "$";
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// Create a regex (note that IgnoreCase is set
)
Regex re = new Regex(lookFor, RegexOptions.IgnoreCase);
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
// See if a match is found
if (re.IsMatch(requestedPath))
{
//aspx页面重定向到htm页面且http数据传输方式为“GET”
if (rules[i].Type == WebType.Static && app.Context.Request.RequestType == "GET")
{
//静态页面路径
string htmlWeb = RewriterUtils.ResolveUrl(httpContext.Request.ApplicationPath, rules[i].SendTo);
//静态页面的最后修改时间
DateTime dt = System.IO.File.GetLastWriteTime(httpContext.Server.MapPath(htmlWeb));
//当前时间和静态页面生成时间对比,如果时间小于一个小时,重定向到静态页面
if (DateTime.Compare(DateTime.Now.AddHours(-1), dt) <= 0)
{
requestedPath = htmlWeb;
}
}
else
{
requestedPath = rules[i].SendTo;
}
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// Rewrite the URL
RewriterUtils.RewriteUrl(httpContext, requestedPath);
break; // exit the for loop
}
}
}
}
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
}
}
CreateHtmFactoryHandler类用于生成静态页面,代码如下:
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
using System;
using System.IO;
using System.Web.UI;
using System.Web;
using URLRewriter.Config;
using System.Configuration;
using System.Text.RegularExpressions;
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
namespace URLRewriter
{
/// <summary>
/// 依据web.config配置信息,生成静态页面
/// </summary>
public class CreateHtmFactoryHandler : IHttpHandlerFactory
{
/// <summary>
///
/// </summary>
/// <param name="context">HttpContext 类的实例,它提供对用于为 HTTP 请求提供服务的内部服务器对象(如 Request、Response、Session 和 Server)的引用</param>
/// <param name="requestType">客户端使用的 HTTP 数据传输方法(GET 或 POST)</param>
/// <param name="url">所请求资源的 RawUrl。</param>
/// <param name="pathTranslated">所请求资源的 PhysicalApplicationPath</param>
/// <returns>返回实现 IHttpHandler 接口的类的实例</returns>
public virtual IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
if (requestType == "GET")
{
// get the configuration rules
RewriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
// iterate through each rule![](https://www.cnblogs.com/Images/dot.gif)
for (int i = 0; i < rules.Count; i++)
{
// get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory)
string lookFor = "^" + RewriterUtils.ResolveUrl(context.Request.ApplicationPath, rules[i].LookFor) + "$";
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
// Create a regex (note that IgnoreCase is set
)
Regex re = new Regex(lookFor, RegexOptions.IgnoreCase);
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
// See if a match is found
if (re.IsMatch(url) && rules[i].Type == WebType.Static)
{
//得到要生成的静态页面的物理路径
string physicsWeb = context.Server.MapPath(RewriterUtils.ResolveUrl(context.Request.ApplicationPath, rules[i].SendTo));
//设定Response筛选器
context.Response.Filter = new ResponseFilter(context.Response.Filter, physicsWeb);
break;
}
}
}
//得到编译实例
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
}
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public virtual void ReleaseHandler(IHttpHandler handler)
{
}
}
}
以上是两个主要的类,还有一些辅助的类,我把测试项目附上,里边有源代码和示例。
点击这里下载:源代码和示例
声明一下,我是在修改一个开源的项目(UrlRewrite)来实现上述功能。有关UrlRewrite介绍,请看这里,ASP.NET 中执行 URL 重写。
功夫不负有心人,终于被我找到了,只需要在web.config中进行简单配置,就可以达到动态生成静态页面的效果,同时又不影响Url重定向。web.config中需要注意的配置节为<configuration>、<RewriteConfig>、<httpModules>、<httpHandlers>,在这些配置节里边都有注释,容易看懂。
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ModuleRewriter类用于Url重定向,代码如下:
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
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点击这里下载:源代码和示例
声明一下,我是在修改一个开源的项目(UrlRewrite)来实现上述功能。有关UrlRewrite介绍,请看这里,ASP.NET 中执行 URL 重写。
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不错!
谢谢楼主!
谢谢楼主!
可以实现二级域名跳转吗?比如http://w12.abc.com/ -> http://www.abc.com/show.aspx?id=w12
@ssssssssssssssss
你修改一下(httpModules)源代码,应该是可以实现的。
你修改一下(httpModules)源代码,应该是可以实现的。
好像例子里没有调用的代码吧
友情提醒:
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
PageParser.GetCompiledPageInstance 在.net2.0环境下 流量一大 cpu就100%, 此代码在cnblogs的源代码里也有。
所以还是慎重考虑。
需要用BuildManager类来替代
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
PageParser.GetCompiledPageInstance 在.net2.0环境下 流量一大 cpu就100%, 此代码在cnblogs的源代码里也有。
所以还是慎重考虑。
需要用BuildManager类来替代
2.0中不要使用PageParser.GetCompiledPageInstance
推荐使用BuildManager.CreateInstanceFromVirtualPath
see :
http://www.cnblogs.com/huobazi/archive/2007/12/31/UrlRewriteAndHttpHanderAndMakeStaticHtmlFiles.html
另外生成HTML这个工作放到HttpModule内比较好,否则启用HttpCompression的时候会有问题。
微软好象有个开元的类是的东东
--引用--------------------------------------------------
殇: URLRewriter和生成静态页,我认为只要用一种方法就行了
--------------------------------------------------------
用静态页对服务器的压力比用"动态页"会小很多
殇: URLRewriter和生成静态页,我认为只要用一种方法就行了
--------------------------------------------------------
用静态页对服务器的压力比用"动态页"会小很多
CreateHtmFactoryHandler中的
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
替换为
IHttpHandler handler = BuildManager.CreateInstanceFromVirtualPath(url, typeof(Page)) as IHttpHandler;
return handler;
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
替换为
IHttpHandler handler = BuildManager.CreateInstanceFromVirtualPath(url, typeof(Page)) as IHttpHandler;
return handler;
通过反射也可以实现
CreateHtmFactoryHandler中的
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
替换为
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
return factory.GetHandler(context, requestType, url, pathTranslated);
CreateHtmFactoryHandler中的
return PageParser.GetCompiledPageInstance(url, pathTranslated, context);
替换为
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
return factory.GetHandler(context, requestType, url, pathTranslated);
在首页看到了 过来下栽 顺便帮你顶顶
谢谢正在找这个
好,非常有用,谢谢楼主