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The Example JSP Pages

This chapter illustrates JSTL with excerpts from the JSP version of the Duke's Bookstore application discussed in Chapter 16 rewritten as follows:

The Struts logic tags were replaced with JSTL core tags.
The scriptlets accessing a message store were replaced with message formatting tags.
The JavaBeans component database helper object was replaced with direct calls to the database via the JSTL SQL tags. For most applications, it is better to encapsulate calls to a database in a bean. JSTL includes SQL tags for situations where a new application is being prototyped and the overhead of creating a bean may not be warranted.

The source for the Duke's Bookstore application is located in the <JWSDP_HOME>/docs/tutorial/examples/web/bookstore4 directory created when you unzip the tutorial bundle (see Running the Examples).

To build, install, and run the example:

In a terminal window, go to <JWSDP_HOME>/docs/tutorial/examples/web/bookstore4.
Run ant build. The build target will spawn any necessary compilations and copy files to the <JWSDP_HOME>/docs/tutorial/examples/web/bookstore4/build directory.
Make sure Tomcat is started.
Run ant install. The install target notifies Tomcat that the new context is available.
Start the PointBase database server and populate the database if you have not done so already (see Accessing Databases from Web Applications).
Open the bookstore URL http://localhost:8080/bookstore4/enter.

See Common Problems and Their Solutions and Troubleshooting for help with diagnosing common problems.

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