Java Web Programming [7/9] : Struts2 Basics
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This document provides an overview of the Apache Struts 2 framework. It discusses that Struts 2 is an open-source MVC framework built on top of Servlets and JSP technologies. It takes complexity out of building web applications and encourages good design practices. The document then outlines the basic steps to create a simple Struts 2 application, including writing JSP pages and action classes, configuring the struts.xml file, building and deploying the application.
Java Web Programming [7/9] : Struts2 Basics
- 1. Module 7: Struts 2 Basics Thanisa Kruawaisayawan Thanachart Numnonda www.imcinstitute.com
- 2. Apache Struts Struts is an open source Web application framework developed as Apache Jakarta project http://jakarta.apache.org/struts/ Model-View-Controller (MVC) framework Used for constructing web applications based Servlets and JSP technologies Strutsapplication is a genuine Web application that should be able to run on any Servlet container including all Java EE compliant App servers 2
- 3. Why Struts? Takes much of the complexity out of building your own MVC framework Encourages good design practice and modeling Easy to learn and use Feature-rich and many supported 3rd-party tools Flexible and extensible Large user community Stable and mature Open source 3
- 4. How Struts 2 Works 4
- 5. Our Goal 5
- 6. Steps 1. Write JSP pages (View) 2. Write Action class (Model) 3. Forward at either success or error through configuration set in struts.xml 4. Build, deploy, and test the application 6
- 7. Step 1: Write JSP pages 7
- 8. JSP Pages Write one JSP page for each view Use Struts tags for Handing HTML input forms Writing out messages 8
- 9. login.jsp 9
- 10. welcome.jsp 10
- 11. Step 2: Write Action classes 11
- 12. Action Class Extend com.opensymphony.xwork2.ActionSupport class Decide set of properties that reflect the input form Write getter and setter methods for each property Write execute() method 12
- 13. LoginAction.java 13
- 14. Step 3: Config struts.xml 14
- 15. struts.xml Identify required Action's and then define them as <action> elements 15
- 16. Step 5: Build, Deploy, and Test Application 16
- 17. Results 17
- 18. Acknowledgement Most contents are borrowed from the presentation slides of Sang Shin, Java™ Technology Evangelist, Sun Microsystems, Inc. 18
- 19. Thank you [email protected] www.facebook.com/imcinstitute www.imcinstitute.com 19