Solved

retriving information using wget command in Java

Posted on 2013-06-06
11
304 Views
Last Modified: 2013-12-24
Hello, I am trying to write a program using the wget command in java that goes to a website picks a link in that website and click it than goes to the second link clicks it and goes to the third link and grabs a particular string.

An example would be to go to http://www.w3schools.com/ click on "learn SQL" link than click on the "SQL SELECT TOP" link and grab a particular string from that page. I am not sure how to write it.
0
Comment
Question by:yescobar2012
  • 6
  • 3
  • 2
11 Comments
 
LVL 4

Expert Comment

by:BAKADY
ID: 39226523
I don't think wget is your best solution. it isn't available at macs or windows by default.
Use Apache Java Frameworks to powered your application.

use a httpclient to make page requests like:

http://hc.apache.org/httpcomponents-client-ga/index.html

and a html parse to load links like this:

http://tika.apache.org/1.3/parser.html

Regards
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 39226540
BAKADY is right - wget is not the right tool. HttpClient though is not really the right tool - it's too low level. You'll find you have to write much less code with something like HtmlUnit
0
 

Author Comment

by:yescobar2012
ID: 39227037
Oh I see... how about HTMLParser
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 39227224
EDITED
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 39227232
Oh I see... how about HTMLParser
What's that?
0
Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

 

Author Comment

by:yescobar2012
ID: 39227315
It is similar to this parsing i found some good example of what i was looking for

http://www.mkyong.com/java/jsoup-html-parser-hello-world-examples/
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 39227340
You can use that but there's no need to go so low-level
0
 

Author Comment

by:yescobar2012
ID: 39229783
you had recommended to use HtmlUnit, if I use HtmlUnit can i navigate thru a website  or traverse the website? As what I had mention in my question.

An example would be to go to http://www.w3schools.com/ click on "learn SQL" link than click on the "SQL SELECT TOP" link and grab a particular string from that page. I am not sure how to write it.

Would you have any working examples I can take a look at that navigate thru a website (from a website navigates to a child website and a child website and grabs a String?
0
 
LVL 86

Accepted Solution

by:
CEHJ earned 250 total points
ID: 39229873
if I use HtmlUnit can i navigate thru a website  or traverse the website?
Yes - or i would not have mentioned it ;)

http://htmlunit.sourceforge.net/gettingStarted.html
0
 
LVL 4

Assisted Solution

by:BAKADY
BAKADY earned 250 total points
ID: 39233374
you need a Framework - learn is a hard work - or Basis-Knowledge about HTTP and HTML and build it from scratch.

if you know what you need and what you are doing, it isn't complicate. Something like a little http/https proxy can works with only 300 lines code - including comments and no line bigger that 50 chars.

good luck
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 39275453
:)
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

Phishing is at the top of most security top 10 efforts you should be pursuing in 2016 and beyond. If you don't have phishing incorporated into your Security Awareness Program yet, now is the time. Phishers, and the scams they use, are only going to …
One of the biggest challenges facing freelancers is balancing multiple projects and deadlines. Organizational skills and time management are key to keeping up with projects and staying on track. Luckily, we’ve curated seven tools to help you focus o…
The Bounty Board allows you to request an article or video on any technical topic, or fulfill a bounty request to earn points. Watch this video to learn how to use the Bounty Board to get the content you want, earn points, and browse submitted bount…
Notifications on Experts Exchange help you keep track of your activity and updates in one place. Watch this video to learn how to use them on the site to quickly access the content that matters to you.

759 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now