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From kohanm <kohan.mass...@gmail.com>
Subject Re: Context or Mapping problems Apache 2.2 +mod_JK+ Tomcat 5.5
Date Thu, 24 Jul 2008 19:13:34 GMT
Hi,
my case is Case 1:
can you give me an example for Redirect or RedirectMatch

thanks,

MK


> Caldarale, Charles R schrieb:
>
>> From: kohanm [mailto:kohan.massoud@gmail.com] Subject: Re: Context
>>> or Mapping problems Apache 2.2 +mod_JK+ Tomcat 5.5
>>>
>>> The webaplication is done now, but my boss asked me to change the
>>> name of URL webapplication. IF I change the directory name than
>>> there are many jsp pages with many links  with old name's
>>> webapplication.
>>>
>>
>> Now the true problem comes out - the webapp name is hardcoded within
>> the webapp; that's extremely bad practice.  I assume fixing those
>> won't be an easy task.
>>
>> In this case, you're stuck with needing to deploy the webapp in the
>> directory corresponding to the old name; there's no way around that.
>> You can write a filter or valve in Tomcat that forwards or redirects
>> all requests for the new name to the old one.  You should also be
>> able to do that with mod_jk directives, but someone else will have to
>> help with that.
>>
>
> Someone else says:
>
> If your webapp sends out responses with absolute URLs containing the wrong
> application name, then there's no easy solution.
>
> Case 1: You only want to make the app reachable under the new name, but you
> don't care if users switch to the old name sometime during app use.
>
> That's easy, simply redirect from the new name to the old name with a
> Redirect or RedirectMatch in Apache httpd.
>
> Case 2: You accept occasional occurence of the old name in THE URLs, but it
> should be mostly th enew one.
>
> Deploy the webapp under the new name as Charles suggested. Add a
> RewriteRule to Apache httpd to redirect any URL of the from
> /oldapp/something to /newapp/something. Whenever Users click on an oldapp
> link, the request will be answered by the redirect and the URLs quickly get
> replaced by the newapp URLs in the browser window. Caution: there might be
> problems with redirects and POST requests. All in all that's more a hack.
>
> Case 3: The oldapp name is not contained in the body of responses, but only
> used in redirects coming from the webapp. Then you could try using
> mod_proxy, which allows to change the Location headers in redirects.
>
> Case 4: You don't allow any use of the old name and the old name is
> contained in links in response bodies.
>
> Then you dynamically need to patch the responses. This will be a hack. Have
> a look at either mod_substitute (httpd 2.2.8 or above, I think) or
> mod_proxy_html (note: mod_proxy_html != mod_proxy_http).
>
> Regards,
>
> Rainer
>
>
>
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>


-- 
Massoud

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