By Steven Olson Douglas
Ajax supplies internet builders the power to construct functions which are extra interactive, extra dynamic, extra interesting and relaxing to your clients. in case you are a Java developer and have not attempted Ajax, yet want to start, this publication is vital. Your clients should be thankful.
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Additional resources for Ajax on Java
Example 4-9. com to register it. com to register it. 5. Running the Application on Tomcat If you are running your application on the Tomcat server, you can use the Tomcat Web Application Manager (accessible through the URL http://localhost:8080/manager/html) to check whether it was deployed. The application manager is shown inFigure 4-3. As you can see in this figure, two versions of our Ajax converter have been deployed successfully and are currently running. The directory in which you installed the application becomes part of the path.
1. The Character Decoder The example in this chapter is similar to the one in the previous chapter, but instead of the server returning one data point, it's going to return five. Retuning a small collection of data shows what happens when you go beyond a single data point and illustrates why most Ajax applications need XML or some other way to structure the data that is passed from the server to the client. Figure 4-1 shows how the user interface of the application will look when we're done. The design is simple enough: we send a character to the server using XMLHttpRequest( ) , and the server responds with aString containing the five conversions in XML format (decimal, octal, hexadecimal, binary, and HTML).
We don't want anything complex, so we'll aim to create an XML document that looks like this: