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ASP.net的RUL重写

2024-07-10 13:06:59
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有关于url的重写,本文也只是拿来主意。相继有ms的组件“urlrewriter”和在global.asax里的“application_beginrequest()”编码方式,以及iis里的isapi设置。

娜列下来,实现方法也都很简单。

 

方法一:ms组件

这里也不用详解了,相关请看:

http://www.microsoft.com/china/msdn/library/webservices/asp.net/urlrewriting.mspx

用法很简单,只需要把组件urlrewriter.dll拷到应用程序的bin目录下,然后在web.config下加入如下代码:

在<configuration></configuration>中加入:

     <configsections>

          <section name="rewriterconfig" type="urlrewriter.config.rewriterconfigserializersectionhandler, urlrewriter" />

     </configsections>

    

     <rewriterconfig>

          <rules>

              <rewriterrule>

                   <lookfor>~/(/d{4})/(/d{2})/default/.aspx</lookfor>

                   <sendto>~/default.aspx?id=$1</sendto>

              </rewriterrule>

          </rules>

     </rewriterconfig>

 

然后在<system.web></system.web>中加入:

<httphandlers>

   <add verb="*" path="*.aspx"

        type="urlrewriter.rewriterfactoryhandler, urlrewriter" />

</httphandlers>

 

最后在地址栏上键入:http://localhost/test/2004/12/news.aspx

效果出来了。


上面的<lookfor>~/(/d{4})/(/d{2})/news/.aspx</lookfor>这句这正则表达式url,即被重写的url,而<sendto>~/default.aspx?id=$1</sendto>这一句为原始url地址。其中的$1为第一个正则表达式值(上面例子为:2004),以此类推,第二个即为$2

 

方法二:application_beginrequest()

在应用程序中新建一个xml文件,文件内容为:文件名rewriter.config

<?xml version="1.0" encoding="utf-8" ?>

<rewriterurls>

     <rule>

          <old>(.*)/news/(/d{4})/default/.aspx</old>

          <new>../../default.aspx?id=$2&amp;type=$3</new>

     </rule>

</rewriterurls>

在global.asax文件中的application_beginrequest(object sender, eventargs e)加入代码:

              try

              {

                   string path=server.mappath("~/rewriter.config");

                   xpathdocument myxpathdocument = new xpathdocument(path);

                   xpathnavigator myxpathnavigator = myxpathdocument.createnavigator();

                   xpathnodeiterator myxpathnodeiterator =  myxpathnavigator.select ("//rule");

                   system.text.regularexpressions.regex oreg;

                   string rewriteurl;

                   while (myxpathnodeiterator.movenext())

                   {

                        //oreg=new regex(onode.selectsinglenode("url/text()").value);

                        xpathnavigator nav2 = myxpathnodeiterator.current.clone();

                       string oldstring="",newstring="";

                        xpathnodeiterator it2 = nav2.select("old");

                        while(it2.movenext())

                       {

                            oldstring = it2.current.value;

                            break

                       }

                       it2 = nav2.select("new");

                        while(it2.movenext())

                       {

                            newstring = it2.current.value;

                            break

                       }

                        if(oldstring != "" &&  newstring != "")

                       {

                            oreg = new system.text.regularexpressions.regex(oldstring);

                            if(oreg.ismatch(request.url.tostring()))

                            {

                                 rewriteurl = oreg.replace(request.url.tostring(),newstring);

                                 httpcontext.current.rewritepath(rewriteurl);

                                 break

                            }

                       }

                   }

              }

              catch

              {

              }

 

最后在地址栏上键入:http://localhost/test/news/2004/default.aspx

效果出来了。

 

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