Get Core JSTL: Mastering the JSP Standard Tag Library PDF

By David Geary

ISBN-10: 0131478230

ISBN-13: 9780131478237

Middle JSTL is an in-depth exam of the JavaServer Pages commonplace Tag Library (JSTL), which supplies a regular set of customized tags--including tags for generation, gaining access to URLs, database entry, internationalization, and the manipulation and transformation of XML documents--that online page authors and software program builders can use to increase websites. The publication illustrates JSTL's services with plenty of code snippet and examples. those examples are artistic and sensible combos of tags you should use instantly! a complicated a part of the e-book covers JSTL configuration and integration of Java code with JSTL. JSTL defines an expression language that enables website improvement by means of offering a substitute for Java code in web content. The JSTL expression language additionally permits easy accessibility to facts resembling request parameters and attributes, cookies, and HTML headers. center JSTL examines all facets of this strong new addition to the JavaServer Pages typical, and is written for web page authors and software program builders alike. JSTL is a Java ordinary for constructing dynamic sites. It supplies non-programmers entry to robust operations via HTML-like tags.

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Extra info for Core JSTL: Mastering the JSP Standard Tag Library

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Figure 1-5. 72. As you can see from Figure 1-5, you can download a ZIP file or a TAR file. Once you've downloaded the file, decompress it and a top-level directory will be created. As with Tomcat, you may want to change the port that Resin runs on to the standard 80 port so that you don't have to include the port number in your URLs. conf and change the port number like this:[13] [13] $RESIN represents the top-level directory created when you decompressed the downloaded file. sh for Unix. Unlike Tomcat, Resin has no application for shutting itself down, because Resin creates a small window that lets you restart Resin or shut it down.

The name and tag-class elements are required for the tag element, so the preceding listing specifies those values. 72. greeting'/>

At translation time, the preceding JSP page will throw an exception because it has a scriptlet, which violates the first TLD declared in the page. Now that you know what JSTL is and what it offers, let's get started by downloading and installing the necessary software and implementing a simple Web application that uses JSTL. 72. 2 APIs  JSTL If you don't plan to use J2EE features such as Java Naming and Directory Interface (JNDI) or Enterprise JavaBeans (EJB), you're probably better off with J2SE, which is a subset of J2EE.

4. 72. 72. 72. zip} '/>

The preceding JSP page creates three beans: a name bean, an address bean, and a user profile bean; the name and address beans are used to create the user profile. All three beans are stored in page scope. 4 uses EL expressions to access properties of the user profile. firstName} . lastName} . [8] The user profile bean—named profile —that exists in page scope is accessed by name with an identifier, and its enclosed name bean is also accessed with an identifier.

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Core JSTL: Mastering the JSP Standard Tag Library by David Geary

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