By Edmond Woychowsky
The effortless, Example-Based advisor to Ajax for Every internet Developer
Using Ajax, you could construct net purposes with the sophistication and usefulness of conventional desktop
applications and you'll do it utilizing criteria and open resource software program. Now, for the 1st time,
there's a simple, example-driven consultant to Ajax for each internet and open resource developer, regardless of
one step at a time, he introduces concepts for development more and more wealthy functions. don't fret if
you're now not knowledgeable on Ajax's underlying applied sciences; Woychowsky bargains refreshers on them, from
standards all through, starting from Firefox to Ruby and MySQL.
You'll not just how one can write "functional" code, but in addition grasp layout styles for writing rocksolid,
high-performance Ajax purposes. you are going to additionally tips on how to use frameworks equivalent to Ruby on
Rails to get the task performed fast.
Learn how Ajax works, the way it advanced, and what it truly is stable for
Understand the stream of processing in Ajax applications
Build Ajax purposes with XML and the XMLHttpRequest object
Integrate back-end code, from Hypertext Preprocessor to C#
Use XSLT and XPath, together with XPath Axis
Develop client-side Ajax libraries to help code reuse
Streamline improvement with Ruby on Rails and the Ruby programming language
Use the cross-browser HTML DOM to replace elements of a page
The focus of professional internet 2. zero program improvement with GWT is a case learn of a true internet 2. zero program referred to as ToCollege. net.
What you’ll learn:
- You’ll take a whole travel of a contemporary net 2. zero startup’s codebase. That’s 15,000 strains of resource code that incorporates every little thing from Google Gears integration to Acegi OpenID, Lucene full–text seek, and Google Maps, it all built-in with GWT 1. 5.
- Leveraging this book’s to be had resource code, you’ll see the nitty–gritty information of ways to merge a latest net 2. zero software stack together with Hibernate, Spring, Spring MVC 2. five, SiteMesh, and Freemarker together.
- You’ll see how one can cord GWT into an commonplace Maven construct surroundings, so as to assist you wake up to hurry fast and keep away from configuration headaches.
- the good pitfall of many Ajax functions is they’re in most cases opaque to go looking engines. You’ll see the ToCollege. internet strategy to this thorny problem.
- safety from XSS and XSRF assaults is past the scope of straightforward GWT tutorials, yet they're a genuine situation for a domain like ToCollege. web. The publication will disguise the ToCollege. internet protection structure in detail.
Who is that this publication for?
This booklet is for builders who're able to flow past small proof–of–concept pattern functions and wish to examine the problems surrounding a true deployment of GWT. as a way to see what the center of a full–fledged GWT program seem like, this can be the booklet for you.
GWT 1. five is a game–changing know-how, however it doesn’t exist in a bubble. genuine deployments have to connect with your database, implement authentication, supply defense from defense threats, and make allowance solid seek engine optimization.
To exhibit you all this, this e-book seems to be on the code in the back of a true stay site referred to as ToCollege. internet. This program makes a speciality of aiding scholars who're utilizing to high schools, letting them deal with their software strategy and evaluate the ratings that they provide to every university. It’s a slick software that’s prepared so you might check in and use.
The viewers for this e-book both owns one other GWT publication for the fundamental tutorials or is cozy utilizing the web documentation and boards while they’re caught, which permits this ebook to maneuver quick and concentrate on answering the larger structure questions.
About the Apress professional Series
The Apress seasoned sequence books are functional, specialist tutorials to maintain you on and relocating up the pro ladder.
You have got the activity, now you must hone your abilities in those difficult aggressive instances. The Apress professional sequence expands your talents and services in precisely the components you wish. grasp the content material of a professional booklet, and you may regularly be ready to get the task performed in a certified improvement venture. Written via specialists of their box, seasoned sequence books from Apress provide the hard–won suggestions to difficulties you'll face on your specialist programming profession.
Ajax is on the middle of the net 2. zero revolution. it's not a expertise yet, relatively, is a method that leverages different applied sciences and methods, equivalent to CSS, XML, DHTML, and XHTML. Many net designers and programmers want to comprise Ajax of their tasks end result of the striking performance it might upload to an internet site, yet they cannot a result of steep studying curve.
- You Don't Know JS: Up & Going
Not a big deal," you say. Well, it could be. The part of the document that isn't well formed doesn't have to be glaring, like a foot being attached to the forehead. Because an XHTML document is essentially XML, simply following the HTML practices that we've followed for years is enough to get us into trouble. Consider the following two HTML input statements: Both statements are perfectly acceptable HTML, but as XHTML, they don't make the grade because neither is well formed.
1. A World Unseen Any developer familiar with the use of frames and framesets will find Listing 2-1 pretty normal looking. However, one item isn't plain vanilla: the rows="100%,*" attribute on the frameset element, which states that the first frame gets 100 percent of available rows. The asterisk (*) states that anything left over goes to the second frame. In this example, there is nothing left over, so it is the equivalent of coding zero. This results in the first frame being visible and the second frame being hidden.
It goes something like this: The HTML page loads, which causes the onload event handler, initialize, to fire. In this function, the XMLHttpRequest object's open method is invoked, which only sets the 36 37 method (POST), gives the relative URL of a web service, and states that the request will be asynchronous (true). Next, the onreadystatechage event handler is set; this is the function that handles what to do when the web service responds. Finally, the send method of the XMLHttpRequest object is invoked, sending our request on its merry way.