[Reprint] Asp.net URL rewriting

Asp.net URL rewriting

This article is just an idea about URL rewriting. The MS component "urlrewriter" and the "application_beginrequest ()" encoding method in global. asax are successively available, as well as ISAPI settings in IIS.

The implementation method is also very simple.

 

Method 1: MS components

You do not need to go into details here. For details, refer:

Http://www.microsoft.com/china/msdn/library/webservices/asp.net/URLRewriting.mspx

The usage is simple. You only need to copy the urlrewriter. dll component to the application.ProgramIn the bin directory, and then add the following to Web. config:Code:

Add the following to <configuration> </configuration>:

<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>

Add the following content to <system. Web> </system. Web>:

<Httphandlers>

<Add verb = "*" Path = "*. aspx"

Type = "urlrewriter. rewriterfactoryhandler, urlrewriter"/>

</Httphandlers>

 

Finally, enter http: // localhost/test/2004/12/news. aspx in the address bar.

The result is displayed.

<Lookfor> ~ /(\ D {4})/(\ D {2})/news \. aspx </lookfor> This regular expression URL, that is, the URL to be rewritten, and <sendto> ~ /Default. aspx? Id = $1 </sendto> is the original URL. $1 indicates the value of the First Regular Expression (2004 in the preceding example), and so on. The second is $2.

 

Method 2: application_beginrequest ()

Create an XML file in the application with the file name 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>

Add the following code to application_beginrequest (Object sender, eventargs E) in the global. asax file:

Try

{

String Path = server. mappath ("~ /Rewriter. config ");

Xpathdo *** ent myxpathdo *** ent = new xpathdo *** ENT (PATH );

Xpathnavigator myxpathnavigator = myxpathdo *** Ent. 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

{

}
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