By James Holmes
Strut your stuff with this thoroughly up to date consultant Struts guru James Holmes has thoroughly revised and up to date his definitive, bestselling Struts quantity. you'll get soup-to-nuts insurance of Struts 1.3, the most recent model of the framework used to create versatile, high-performance net functions. The booklet beneficial properties insider counsel, tips, and strategies to make Struts functions sizzle.
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Extra info for Struts: The Complete Reference
Properties file, shown next, is based on Java's Resource Bundle functionality for externalizing and internationalizing application strings, messages, and labels. footer=
You'll notice that this file is simply comprised of name-value pairs, where the name is a key and the value is a message corresponding to the key. Each of the name-value pairs is then used by your Struts application whenever a string, message, or label needs to be displayed. Externalizing these strings in a separate file instead of embedding them in your application allows the strings to be changed without having to recompile the application (separation of concerns).
Essentially, Form Beans are simple data containers. They either contain data from an HTML form that is headed to the Model via the Controller or contain data from the Model headed to the View via the Controller. Form Beans are basic Java beans with getter and setter methods for each of their properties, allowing their data to be set and retrieved easily. ActionForm class is the base abstract class that all Form Beans must subclass. Because Form Beans are simple data containers, they are principally comprised of fields, and setter and getter methods for those fields.
This is the power of Struts and MVC. Because HTML/JSP is the typical View technology used for Java-based Web applications, Struts provides the most functionality and features for developing your application this way. The remainder of this chapter focuses on Struts’ support for creating the View layer using HTML/JSP. Struts’ HTML/JSP View layer support can be broken down into the following major components: • JSP pages • Form Beans • JSP tag libraries • Resource bundles Each of these components is examined in detail in this chapter, but first it is helpful to understand how they fit together in the View layer.