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Posted to user@nutch.apache.org by Zhou LiBing <zh...@gmail.com> on 2005/08/21 01:59:20 UTC
Re: [Nutch-general] Re: about the nutch function
can I specify more than one URL to crawl the whole web?are you sure?
how to edit the crawl-urlfilter.txt to fetch the images?how could I extract
these* segment *images' feature?
thank you
2005/8/19, Piotr Kosiorowski <pk...@gmail.com>:
>
> Yes.Yes. :).
> You can specify more than one url while injecting pages to WebDB.
> You can fetch the image file (you have to edit crawl-urlfilter.txt or
> regex-urlfilter.txt to allow particular extension as majority of image
> extensions are blocked by default).
> But such data would be only stored in segment - I do not think it
> would be accesible by search.
> P.
>
>
> On 8/19/05, Zhou LiBing <zh...@gmail.com> wrote:
> > Can Nutch use one or more start URL to crawl the WEB?
> > Can Nutch fetch the IMAGE file?
> > thank you
> >
> >
> > --
> > ---Letter From your friend Blue at HUST CGCL---
> >
> >
>
>
> -------------------------------------------------------
> SF.Net email is Sponsored by the Better Software Conference & EXPO
> September 19-22, 2005 * San Francisco, CA * Development Lifecycle
> Practices
> Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
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--
---Letter From your friend Blue at HUST CGCL---
Re: [Nutch-general] Re: about the nutch function
Posted by Zhou LiBing <zh...@gmail.com>.
thank u, I will try
2005/8/21, Fuad Efendi <fu...@efendi.ca>:
>
> If you need search engine - you can use Nutch.
> For front-end, you can use links to images from source sites, it's
> better for performance of your own site.
>
> If you need just to collect image files, probably best is
> http://htmlparser.sourceforge.net/
> org.htmlparser.parserapplications.SiteCapturer
> However, I'd prefer to write some additional readers for Nutch! Better
> for troubleshooting, I need it.
> Thanks
>
>
> -----Original Message-----
> From: Zhou LiBing [mailto:zhoulibing@gmail.com]
> Sent: Saturday, August 20, 2005 7:59 PM
> To: user@nutch.org
> Subject: Re: [Nutch-general] Re: about the nutch function
>
>
> can I specify more than one URL to crawl the whole web?are you sure? how
> to edit the crawl-urlfilter.txt to fetch the images?how could I extract
> these* segment *images' feature?
> thank you
>
>
> 2005/8/19, Piotr Kosiorowski <pk...@gmail.com>:
> >
> > Yes.Yes. :).
> > You can specify more than one url while injecting pages to WebDB. You
> > can fetch the image file (you have to edit crawl-urlfilter.txt or
> > regex-urlfilter.txt to allow particular extension as majority of image
>
> > extensions are blocked by default). But such data would be only stored
>
> > in segment - I do not think it would be accesible by search.
> > P.
> >
> >
> > On 8/19/05, Zhou LiBing <zh...@gmail.com> wrote:
> > > Can Nutch use one or more start URL to crawl the WEB?
> > > Can Nutch fetch the IMAGE file?
> > > thank you
> > >
> > >
> > > --
> > > ---Letter From your friend Blue at HUST CGCL---
> > >
> > >
> >
> >
> > -------------------------------------------------------
> > SF.Net email is Sponsored by the Better Software Conference & EXPO
> > September 19-22, 2005 * San Francisco, CA * Development Lifecycle
> > Practices Agile & Plan-Driven Development * Managing Projects & Teams
> > * Testing & QA Security * Process Improvement & Measurement *
> > http://www.sqe.com/bsce5sf
> > _______________________________________________
> > Nutch-general mailing list Nutch-general@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/nutch-general
> >
>
>
>
> --
> ---Letter From your friend Blue at HUST CGCL---
>
>
>
> -------------------------------------------------------
> SF.Net email is Sponsored by the Better Software Conference & EXPO
> September 19-22, 2005 * San Francisco, CA * Development Lifecycle
> Practices
> Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
> Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
> _______________________________________________
> Nutch-general mailing list
> Nutch-general@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nutch-general
>
--
---Letter From your friend Blue at HUST CGCL---
RE: [Nutch-general] Re: about the nutch function
Posted by Fuad Efendi <fu...@efendi.ca>.
If you need search engine - you can use Nutch.
For front-end, you can use links to images from source sites, it's
better for performance of your own site.
If you need just to collect image files, probably best is
http://htmlparser.sourceforge.net/
org.htmlparser.parserapplications.SiteCapturer
However, I'd prefer to write some additional readers for Nutch! Better
for troubleshooting, I need it.
Thanks
-----Original Message-----
From: Zhou LiBing [mailto:zhoulibing@gmail.com]
Sent: Saturday, August 20, 2005 7:59 PM
To: user@nutch.org
Subject: Re: [Nutch-general] Re: about the nutch function
can I specify more than one URL to crawl the whole web?are you sure? how
to edit the crawl-urlfilter.txt to fetch the images?how could I extract
these* segment *images' feature?
thank you
2005/8/19, Piotr Kosiorowski <pk...@gmail.com>:
>
> Yes.Yes. :).
> You can specify more than one url while injecting pages to WebDB. You
> can fetch the image file (you have to edit crawl-urlfilter.txt or
> regex-urlfilter.txt to allow particular extension as majority of image
> extensions are blocked by default). But such data would be only stored
> in segment - I do not think it would be accesible by search.
> P.
>
>
> On 8/19/05, Zhou LiBing <zh...@gmail.com> wrote:
> > Can Nutch use one or more start URL to crawl the WEB?
> > Can Nutch fetch the IMAGE file?
> > thank you
> >
> >
> > --
> > ---Letter From your friend Blue at HUST CGCL---
> >
> >
>
>
> -------------------------------------------------------
> SF.Net email is Sponsored by the Better Software Conference & EXPO
> September 19-22, 2005 * San Francisco, CA * Development Lifecycle
> Practices Agile & Plan-Driven Development * Managing Projects & Teams
> * Testing & QA Security * Process Improvement & Measurement *
> http://www.sqe.com/bsce5sf
> _______________________________________________
> Nutch-general mailing list Nutch-general@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nutch-general
>
--
---Letter From your friend Blue at HUST CGCL---
RE: [Nutch-general] Re: about the nutch function
Posted by Fuad Efendi <fu...@efendi.ca>.
Such data is called "Content" (Java Class), it has HTTP headers, you can
check HTTP headers ("text/html", "jpg", etc.... MIME extensions)
It is stored in folder "content"...
You can extract it, and save in hard-drive as regular files, you need
specific code (Nutch does not have it). Simply extract
Check in Fetcher class, "ArrayFile.Writer contentWriter;"
You need also to modify url-filter files...
Content.getContentType() - MIME extension
byte[] Content.getContent() - file content (JPG, HTML, DOC, PDF, ...)
-----Original Message-----
From: Zhou LiBing [mailto:zhoulibing@gmail.com]
Sent: Saturday, August 20, 2005 7:59 PM
To: user@nutch.org
Subject: Re: [Nutch-general] Re: about the nutch function
can I specify more than one URL to crawl the whole web?are you sure? how
to edit the crawl-urlfilter.txt to fetch the images?how could I extract
these* segment *images' feature?
thank you
2005/8/19, Piotr Kosiorowski <pk...@gmail.com>:
>
> Yes.Yes. :).
> You can specify more than one url while injecting pages to WebDB. You
> can fetch the image file (you have to edit crawl-urlfilter.txt or
> regex-urlfilter.txt to allow particular extension as majority of image
> extensions are blocked by default). But such data would be only stored
> in segment - I do not think it would be accesible by search.
> P.
>
>
> On 8/19/05, Zhou LiBing <zh...@gmail.com> wrote:
> > Can Nutch use one or more start URL to crawl the WEB?
> > Can Nutch fetch the IMAGE file?
> > thank you
> >
> >
> > --
> > ---Letter From your friend Blue at HUST CGCL---
> >
> >
>
>
> -------------------------------------------------------
> SF.Net email is Sponsored by the Better Software Conference & EXPO
> September 19-22, 2005 * San Francisco, CA * Development Lifecycle
> Practices Agile & Plan-Driven Development * Managing Projects & Teams
> * Testing & QA Security * Process Improvement & Measurement *
> http://www.sqe.com/bsce5sf
> _______________________________________________
> Nutch-general mailing list Nutch-general@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nutch-general
>
--
---Letter From your friend Blue at HUST CGCL---