7. struts
- 1. IMRAN DAUD FOUNDATION UNIVERSITY INSTITUTE OF MANAGEMENT AND COMPUTER SCIENCES Imran Daud FUIMCS Web Engineering Struts
- 2. What is Struts? A framework based on MVC architecture. Source: java.sun.com
- 3. Overview of Struts Application
- 4. Creating Struts Application Create web Project and select struts as framework. Action Servlet Name Action URL Pattern
- 5. Login.jsp Create Login jsp page. Add following taglibs i.e. html <%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %> Add form using html <html:form action="/login"> <html:submit value="Login" /> </html:form> Add table using palette and two text fields using html tag.
- 6. success.jsp Add bean tag at top of page by using strut bean taglib. Now add following:
- 7. ActionForm Bean This bean used to persist data between requests. When user submits data, it is stored temporarily in form bean. To be redisplayed in form page in case of format problem or in success page. To add actionForm bean, create new actionForm bean from strut category and give name LoginForm.java. Add email variable in LoginForm.java bean and add setter and getter functions. After that you can see changes appear in struts- config.xml file.
- 8. Action Class When form is received, function of action object is executed and data is processed. It also decides which view to forward processed data. Create Action Class from wizard from struts category by giving name LoginAction with following: Same Path given in form of login page
- 9. Associate action class with form bean (LoginForm.java) previously created. Delete forward slash from input resource. Set scope to Request. Deselect the Validate ActionForm Bean option
- 10. Validate Form Your LoginAction file will look like this: It redirects the request for success view. But is desirable to validate input before forwarding it to appropriate view.
- 12. Adding forward Entries to struts- config.xml In order for the application to match JSP pages with forwarding conditions returned by LoginAction's execute method, you need to add forward entries to the struts-config.xml file. Open struts-config.xml amd right click anywhere in file. select struts and add forward and add following:
- 13. Setting welcome page in web.xml Goto Page tab og web.xml file and change the welcome file to login.jsp That’s it
- 14. Reference http://www.csl.mtu.edu/cs2321/ Netbeans.org Roseindia.net Jsptut.com tutorialspoint.com/jsp http://java.sun.com