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参考文章

http://www.cnblogs.com/edobnet/archive/2004/06/02/12866.aspx

参考代码

Global.aspx.cs:

        protected void Application_BeginRequest(Object sender, EventArgs e)

        ...{

            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

            ...{

            }


        }

ReWriter.config ,配制文件

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

<ReWriterUrls>

        <rule>

            <old>(.*)/TestUrlRe/file(.*)/(.*).html</old>

            <new>../WebForm1.aspx?id=$2&amp;type=$3</new>

        </rule>

        <rule>

            <old>(.*)/TestUrlRe/t(.*)/(.*).html</old>

            <new>../WebForm1.aspx?tid=$2&amp;ttype=$3</new>

        </rule>

</ReWriterUrls> 

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