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jsp tutorial [ebook, java programming], Notas de estudo de Informática

tutorial de jsp

Tipologia: Notas de estudo

2010

Compartilhado em 28/10/2010

maxsuel-aquino-1
maxsuel-aquino-1 🇺🇸

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3 documentos

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Baixe jsp tutorial [ebook, java programming] e outras Notas de estudo em PDF para Informática, somente na Docsity! JSP tutoria Written by the team at Visualbuilder.com Last Updated : July 12, 2001 Online version available at http://visualbuilder.com/ Visualbuilder.com This is a tutorial to help a developer understand what is meant by JavaServer Pages. The reader will learn the main concepts, setup the JSP environment on their computer and write a few JSP programs. Visualbuilder.com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compared to ASP JSP and ASP are fairly similar in the functionality that they provide. JSP may have slightly higher learning curve. Both allow embedded code in an HTML page, session variables and database access and manipulation. Whereas ASP is mostly found on Microsoft platforms i.e. NT, JSP can operate on any platform that conforms to the J2EE specification. JSP allow component reuse by using Javabeans and EJBs. ASP provides the use of COM / ActiveX controls. JSP compared to Servlets A Servlet is a Java class that provides special server side service. It is hard work to write HTML code in Servlets. In Servlets you need to have lots of printin statements to generate HTML. Visualbuilder.com 9LVXDOEXLOGHUFRP -63DUFKLWHFWXUH -63VDUHEXLOWRQWRSRI681¶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¶VZHEEURZVHU Creating your first JSP page <html> <head> <title>My first JSP page </title> </head> <body> <%O page language="java” Y%> <% System.out.printin(“Hello World”); %> </body> </html> Type the code above into a text file. Name the file helloworld.jsp. Place this in the correct directory on your JSP web server and call it via your browser. 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eedback If you have any comments or suggestions regarding this document, please use the JSP forum at visualbuilder.com or send us an email at supportQvisualbuilder.com Thank you, Visualbuilder team http://www.visualbuilder.com Visualbuilder.com
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