By Arnold Doray
Starting Apache Struts will offer you a operating wisdom of Apache Struts 1.2. This e-book is perfect for you Java programmers who've a few JSP familiarity, yet very little earlier adventure with Servlet know-how. equipped in a condensed instructional and lab structure, the cloth during this ebook has been established in actual school room environments. It takes a step by step, hands-on method of educating you Struts. The booklet even previews the subsequent iteration of Struts, the Apache Shale. the final result's that you should speedy follow Struts on your paintings settings with self assurance.
Read or Download Beginning Apache Struts: From Novice to Professional (Beginning: from Novice to Professional) PDF
Similar system administration books
Multimediale Client-Server-Anwendungen (insbesondere sog. wealthy net Applikationen) entwickeln sich rasant. Die Gründe hierfür sind steigende Bandbreiten im web, ausgereifte Kompressionstechnologien sowie leistungsstarke Endgeräte. Die Anwendungen sind mittlerweile so attraktiv, dass diese mit dem klassischen Unterhaltungsmedium Fernsehen konkurrieren können.
Apache is much and away the main known internet server platform on this planet. this flexible server runs greater than 1/2 the world's latest websites. Apache is either loose and rock-solid, operating greater than 21 million websites starting from large e-commerce operations to company intranets and smaller pastime websites.
Administer and configure the GlassFish v2 software server Get GlassFish put in and configured prepared to be used combine GlassFish with well known Open resource items comparable to Open MQ, Open DS, and Apache lively MQ, and get them operating jointly in a loosely-coupled demeanour Configure source forms like JDBC, Java Connector structure (JCA), JavaMail classes, and customized JNDI supported in GlassFish to simplify source entry and integration safe, visual display unit, troubleshoot, and music your program server example intimately to construct a robust creation atmosphere on your Java EE structures, you would like an exceptional software server, and the talents to control it.
Additional info for Beginning Apache Struts: From Novice to Professional (Beginning: from Novice to Professional)
Listed in decreasing lifetimes, they are as follows: • Application scope: Application-scoped variables are visible to every page of the web application, all the time. The variable is visible to all users of the system and exists across multiple user sessions. In other words, different users can potentially view and change the same variable at any time and from any page. • Session scope: Session-scoped variables exist only for a single-user session, but they are visible to every page in that session.
Both classes have setAttribute() and getAttribute() functions (see Appendix B for details) to store and retrieve objects on them, very much like a HashMap’s put() and get() functions. Objects stored on HttpServletRequest have request scope while objects stored on HttpSession have session scope. When you create a variable on your JSP page, as in Listing 3-1, you’re implicitly calling setAttribute() on the appropriate object (an instance of either HttpServletRequest or HttpSession) depending on the scope you used.
Figure 2-4 illustrates the most used functions on these two classes. Figure 2-4. HttpServletRequest and HttpSession Note that you can obtain an instance of HttpSession from HttpRequestServlet using the latter’s getSession() function. The important functions on both classes are also listed in Appendix B. fm Page 13 Tuesday, January 24, 2006 2:09 PM CHAPTER 2 ■ SERVLET AND JSP REVIEW JavaServer Pages (JSP) Earlier, I mentioned that servlets are Java classes that generate an appropriate response to an HTTP request.