XML processing and website scraping in Java
XML processing and website scraping in Java
How to use JSoup and XMLBeam in practice
About the Book
This book is about XML and HTML processing in the Java world.
First I tell you how I got to this topic and how I learned about XMLBeam and JSoup.
This book is practical: I have a lot of sample code in it and you can use it as a tutorial for XMLBeam and JSoup. However the documentation of those two frameworks should be read too.
I talk in this book about XML converting on the Google App Engine (to PDF, RTF, DocX, HTML), create a website scraper with JSoup and XMLBeam to compare the performance of them both.
And at the end I show how you can customize the toString option of both frameworks.
About the Author
Table of Contents
-
Preface
- What took me the most time?
- Acknowledgement
-
XML Processing and the Google App Engine
- Why GAE?
- Getting the data
- XML to HTML
- XML to PDF
- XML to RTF
- XML to “.*X”
- Exporting the files in GAE
-
XML Processing Advanced
- XML Extractor – my version of solving the problem (brute force)
- Beam me up, Sven
- Conclusion
-
XML processing when memory matters
- SAX
- StAX
- JAXB
- Code
- Conclusion
-
Website scraping with JSoup and XMLBeam
- Introduction of the task
- XMLBeam
- JSoup
- Comparison of runtime
- Conclusion
-
Runtime comparison advanced
- Visualizing the data
- No network I/O – caching the sites in the memory
- No file I/O – parse the sites only
- One more performance tweak
- Conclusion
-
Upgrade to Java 8
- New features in Java 8
- Using parallel streams
- Making the data preparation faster
- Parallelizing the content scraping
-
Using other XPath engines with XMLBeam
- Xalan
- Saxon
- Conclusion
-
Custom printing for HTML with JSoup
- Prettier printing
- Conclusion and source code
-
Printing XMLBeam projections
- Java 6 or 7
- Java 8
- Java 8 revisited
- Source code
- Wrap-up
- Notes
Causes Supported
Open Sourcing Mental Illness, Ltd
Changing how we talk about mental health in the tech community.
https://osmihelp.orgChanging how we talk about mental health in the tech community.
The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.
You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!
So, there's no reason not to click the Add to Cart button, is there?
See full terms...
Earn $8 on a $10 Purchase, and $16 on a $20 Purchase
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earnedover $14 millionwriting, publishing and selling on Leanpub.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
