URL rewriting implements any second-level domain name or multi-level domain name (fixed the problem of parameter interruption)

Brief Review:
Modifying Microsoft's urlrewrite can rewrite the URL, where the domain name needs to be rewritten to implement http://1234.abc.com/to http://www.abc.com/show.aspx? Id = 1234.
Step: 1. Your domain name http://www.abc.com/is pan-resolved, and added a Host Header empty ing in IIS;
2. Modify Microsoft's urlrewriter in two places
(1). basemodulerewriter. CS
Protected virtual void basemodulerewriter_authorizerequest (Object sender, eventargs E)
{
Httpapplication APP = (httpapplication) sender;
Rewrite (App. Request. url. absoluteuri, APP );
}
Replace app. Request. path with app. Request. url. absoluteuri.

(2). modulerewriter. CS

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 = "^" + rules [I]. lookfor + "$ ";
 
// Create a RegEx (note that ignorecase is set)
RegEx Re = new RegEx (lookfor, regexoptions. ignorecase );
 
// See if a match is found
If (Re. ismatch (requestedpath ))
{
// Match found-Do any replacement needed
String sendtourl = rewriterutils. resolveurl (App. Context. Request. applicationpath, re. Replace (requestedpath, rules [I]. sendto ));
 
// Log rewriting information to the trace object
App. Context. Trace. Write ("modulerewriter", "Rewriting URL to" + sendtourl );
 
// Rewrite the URL
Rewriterutils. rewriteurl (App. Context, sendtourl );
Break; // exit the For Loop
}
}
Set string lookfor = "^" + rewriterutils. resolveurl (App. Context. Request. applicationpath, rules [I]. lookfor) + "$ ";
Changed to string lookfor = "^" + rules [I]. lookfor + "$ ";

After completing these two changes, recompile the project and copy the generated DLL to the bin directory of your project.

3. Write the rewrite Regular Expression in Web. config.

<Rewriterrule>
<Lookfor> http: // (\ D +) \. ABC \. com </lookfor>
<Sendto>/show. aspx? Id = $1 </sendto>
</Rewriterrule>
Note:
The problem has come out. Many people have done this to achieve domain name jump, but many people have switched to the home page, which is not lookfor/to/default. I also encountered this problem with Aspx. You need to add a "/" in the rewrite rule to the rule at the end of lookfor and then change it:
<Rewriterrule>
<Lookfor> http: // (\ D +) \. ABC \. com/</lookfor>
<Sendto>/show. aspx? Id = $1 </sendto>
</Rewriterrule>
Another problem is that the modified rewrite is unfriendly to the parameter, the URL after rewriting if there is a parameter such as http://www.abc.com/news.html? Id = 1000. If it is overwritten, 404 is returned. The solution to parameter interruption after rewriting is provided below:
Method 1:
Modify the rewrite rule to make the regular expression accept parameters:
<Rewriterrule>
<Lookfor> http: // (\ D +) \. ABC \. com/news.html (. {0,}) </lookfor>
<Sendto>/show. aspx? Id = $1 </sendto>
</Rewriterrule> all your parameters can match the news page, such as ID and paging, so that the parameters can be used normally on the page.

Method 2:
Modify basemodulerewriter. CS
Protected virtual void basemodulerewriter_authorizerequest (Object sender, eventargs E)
{
Httpapplication APP = (httpapplication) sender;
String Path = app. Request. url. absoluteuri;
If (path. Contains ("? "))
{
Path = path. Split ('? ') [0];
}
Rewrite (path, APP );}
With "?" The absolute URL of is split, only matching URLs without parameters.

Method 3:
Modify modulerewriter. CS
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 = "^" + rules [I]. lookfor + "(. {0,}) $ ";
 
// Create a RegEx (note that ignorecase is set)
RegEx Re = new RegEx (lookfor, regexoptions. ignorecase );
 
// See if a match is found
If (Re. ismatch (requestedpath ))
{
// Match found-Do any replacement needed
String sendtourl = rewriterutils. resolveurl (App. Context. Request. applicationpath, re. Replace (requestedpath, rules [I]. sendto ));
 
// Log rewriting information to the trace object
App. Context. Trace. Write ("modulerewriter", "Rewriting URL to" + sendtourl );
 
// Rewrite the URL
Rewriterutils. rewriteurl (App. Context, sendtourl );
Break; // exit the For Loop
}
}
Set string lookfor = "^" + rules [I]. lookfor + "$"; changed to string lookfor = "^" + rules [I]. lookfor + "(. {0 ,}) $ ";

End
-------------------------------
My Project Website: http://www.at0086.com/has a lot of second-level domain names such as: hotel.at0086.com, rewrite examples of www.at0086.com/tsinghuau/

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