By Steven Douglas Olson

ISBN-10: 0596101872

ISBN-13: 9780596101879

This sensible advisor exhibits you the way to make your Java net functions extra responsive and dynamic by means of incorporating new Ajaxian positive factors, together with recommendation lists, drag-and-drop, and extra. Java builders can choose from many various methods of incorporating Ajax, from construction JavaScript into your purposes "by hand" to utilizing the hot Google internet Toolkit (GWT). Ajax on Java begins with an advent to Ajax, exhibiting you the way to write down a few uncomplicated purposes that use client-side JavaScript to request details from a Java servlet and demonstrate it with no doing an entire web page reload. It additionally provides a number of concepts for speaking among the buyer and the server, together with sending uncooked facts, and utilizing XML or JSON (JavaScript item Notation) for sending extra advanced collections of knowledge. The booklet then branches out into varied ways for incorporating Ajax, which come with: The Prototype and script.aculo.us Javascript libraries, the Dojo and Rico libraries, and DWRIntegrating Ajax into Java ServerPages (JSP) purposes utilizing Ajax with Struts Integrating Ajax into Java ServerFaces (JSF) functions utilizing Google's GWT, which bargains a natural Java method of constructing internet functions: your client-side elements are written in Java, and compiled into HTML and JavaScript Ajax offers internet builders the power to construct functions which are extra interactive, extra dynamic, extra fascinating and relaxing to your clients. in case you are a Java developer and have not attempted Ajax, yet wish to start, this ebook is key. Your clients may be thankful.

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Extra info for Ajax on Java

Sample text

StartElement(null,null,"binary",null) The third element is the only element needed to set up the XML tag, . The actual startElement( ) method declaration looks like this: public void startElement(String uri, String localName, String qName, Attributes atts) The uri parameter is used for the namespace, but since this example does not use a namespace, a null is passed in. The second parameter, localName, is also used for the namespace and not needed in this example. The third parameter, qName, is the qualified name.

It's very similar to the example in the previous chapter, and because I don't like to overwrite my work, I put the new application in its own directory tree. The directory structure I used is shown in Figure 4-2. Figure 4-2. Directory structure for Ajax Character Decoder (second version) This is just a guide so you can see how I built the sample. You can name your directories differently as long as you know how to configure the application server properly. xml file for the project is presented in Example 4-8.

State name. After you get this example running, you can adapt these values to your circumstances. MySQL table names are case-sensitive on Linux but not on Windows, so use care when creating tables. If you create a table called USERS in a Linux environment, you must access it with SELECT * from USERS. However, if you create a table called users on a Windows machine, you can access it with SELECT * from users or SELECT * from USERS. This can be misleading if you start your project on Windows and later migrate your code to Linux.

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Ajax on Java by Steven Douglas Olson


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