By Wright B.

This record is meant for builders attracted to utilizing OracleJSP to create net purposes according to JavaServer Pages expertise. It assumes that operating net and servlet environments exist already, and that readers are already accustomed to the following:■ normal net technology■ common servlet expertise (some technical historical past is supplied in Appendix B)■ tips on how to configure their internet server and servlet environments . ■ HTML■ Java■ Oracle JDBC (for JSP purposes having access to an Oracle database)■ Oracle SQLJ (for JSP database functions utilizing SQLJ)"

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See "XML-Alternative Syntax" on page 5-9. Notes: Directives Directives provide instruction to the JSP container regarding the entire JSP page. This information is used in translating or executing the page. The basic syntax is as follows: <%@ directive attribute1="value1" attribute2="value2"... 1 specification supports the following directives: ■ page—Use this directive to specify any of a number of page-dependent attributes, such as the scripting language to use, a class to extend, a package to import, an error page to use, or the JSP page output buffer size.

The JSP container uses instances of these classes during translation. ■ tag library description files A tag library description (TLD) file is an XML document that contains information about a tag library and about individual tags of the library. tld extension. A JSP container uses the TLD file in determining what action to take when it encounters a tag from the library. xml file. JSP applications can use this file in specifying the location of a JSP tag library description file. xml file can include a taglib element and two subelements: taglib-uri and taglib-location.

Unlike HTML comments, these comments are not visible when a user views the page source. Example: <%-- Execute the following branch if no user name is entered. --%> JSP Objects and Scopes In this document, the term JSP object refers to a Java class instance declared within or accessible to a JSP page. JSP objects can be either: ■ explicit—Explicit objects are declared and created within the code of your JSP page, accessible to that page and other pages according to the scope setting you choose. or: ■ implicit—Implicit objects are created by the underlying JSP mechanism and accessible to Java scriptlets or expressions in JSP pages according to the inherent scope setting of the particular object type.

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