1. Web applications using Java and NetBeans
A very brief introduction
with references to ASP.NET and Visual Studio
Web applications using Java and NetBeans

2. Web applications using Java and NetBeans
NetBeans IDE
NetBeans is an IDE
Integrated Development Environment
NetBeans supports development in a number of programming languages
Java, C/C++, PHP, Ruby, etc.
NetBeans is a Java application
NetBeans runs under a number of operation systems
Windows, Linux, Mac OS, etc.
Web applications using Java and NetBeans

3. Web applications using Java and NetBeans
Apache Tomcat
Apache Tomcat is a web server
Open Source
Runs Java Servlets and JSP, etc.
Normally uses port 8080 if run from NetBeans
Included with NetBeans (some editions)
Can be downloaded separately
Web applications using Java and NetBeans

4. Web applications using Java and NetBeans
GlassFish
GlassFish is a Java application server
Open Source + commercial (Oracle GlassFish)
Runs Java Servlets, JSP and a lot more
Implements the full J2EE
Included with NetBeans (some editions)
Web applications using Java and NetBeans

5. Web applications using Java and NetBeans
Java vs. C#
The Java Programming Language and C# are quite similar in syntax and semantics
Both are object-oriented
Both belong to the curly-brace family of programming languages
Java is older than C#
Java has fewer keywords than C#
Web applications using Java and NetBeans

6. Web applications using Java and NetBeans
Java Servlets and JSP
Java offers two ways to make web applications
Java Servlets
Java code with HTML inside
JSP (JavaServer Pages)
HTML with Java code inside
Servlets and JSP are often/best used in combination
Servlets and JSP are part of Java Enterprise Edition
Features to be run by a web or application server
Web applications using Java and NetBeans

7. Post back to other pages
With ASP.NET the normal post back is to the same page
With Java you specify the page to post to
<form action="welcome.jsp>
Web applications using Java and NetBeans

8. HTTP POST vs. GET methods
The HTTP protocol offers two way to send data from a form to the server
POST
Data is carried in the body of the request
<form action="welcome.jsp" method="POST“ >
GET
Data is carried in the request URL
Default in Java
Good for debugging
Easy to see data
Web applications using Java and NetBeans

9. Model-View-Controller (MVC) in general
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Web applications using Java and NetBeans

10. Model-View-Controller in Java web-applications
Java Bean
View
JSP
Controller
Servlet
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Web applications using Java and NetBeans

11. Model-view-controller in ASP.NET web-applications
ASP.NET MVC is similar to MVC Java web-applications
ASP.NET MVC is quite different from ASP.NET Web Forms
Web applications using Java and NetBeans

12. No ViewState in JSP/Servlets
ASP.NET has ViewState
With JSP/Servlets there is nothing like ViewState
Web applications using Java and NetBeans

13. Deploying a Java web application
When you build a web application you get a WAR file
Web Archive
Essentially a ZIP file
Holds all necessary parts of the web application
Can be copied to the production web server
Tomcat: the folder webapps/
Tomcat: bin/startup.bat, bin/shutdown.bat
Tomcat normally runs on port 8080
Web applications using Java and NetBeans

14. Web applications using Java and NetBeans
Java web frameworks
Apache Struts
MVC framework
JSF (JavaServer Faces)
Another MVC framework
Facelets
View generation framework
Alternative to JSP
Hibernate
An ORM (Object/Relational Mapping)
Connects an object oriented programming language (Java or .NET) with a relational DBMS
If you want to compare ASP.NET + Visual Studio to Java web applications + NetBeans please take the frameworks into consideration
Web applications using Java and NetBeans

15. Web applications using Java and NetBeans
Further readings, etc.
Marty Hall Core Servlets and JavaServer Pages Volume 1 + 2, Prentice Hall 2008
Older edition (2002) called More Servlets and JavaServer Pages available on
NetBeans.org Java EE & Java Web Learning Trail
Specially Introduction to Developing Web Applications
YouTube Java Servlet Definition (video 3:44)
The Java EE 6 Tutorial
Chapter 10 Java Servlet Technology
Apache Tomcat download and documentation
Web applications using Java and NetBeans