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Hibernate

  1. Advantage of Hibernate over JDBC

  2. Hibernate Setup with an web Application

  3. First Hibernate Application

  4. Hibernate mapping with Database TABLE

  5. Hibernate Data Type-Java Data Type - SQL Data Type mapping

  6. One to Many Relation in Hibernate

  7. One to Many Relation in Hibernate bi-directional

  8. Many to Many Relation in Hibernate

  9. HQL: The Hibernate Query Language

  10. Criteria Queries

  11. Criteria Queries : Equal (eq), Not Equal(ne), Less than (le), greater than (gt),greater than or equal(ge) and Ordering the results

  12. Criteria Queries: And OR conditions

  13. Hibernate generator to generate id (primary key)

  14. prevent concurrent update in Hibernate,slate object updatation in Hibernate,version checking in Hibernate

    Struts


  1. Model View Controller (MVC)

  2. Model View Controller (MVC)

  3. Struts Flow-How Struts Works?

  4. Struts Tutorial - Struts Setup- First Struts Action class setup

  5. Message Resources

  6. Validation Framework

  7. Validation Framework-client side

  8. ForwardAction

  9. IncludeAction

  10. DispatchAction

  11. LookupDispatchAction

  12. DynaActionForm

  13. DynaActionForm

  14. Struts Tutorial - Mutli-click prevention using struts tokens-Prevent Duplicate Submission

  15. Logic Iterate Map and List


JSP


  1. JSP Tutorial

  2. Introduction to JSP

  3. JSP Comments

  4. JSP Syntax

  5. JSP Scripting Elements :Scriptlet, expression, declaration

  6. JSP Directives

  7. implicit objects in JSP

  8. JSP Actions

  9. Introduction to JSP

  10. jsp:useBean

  11. The jsp:setProperty Action

  12. The jsp:getProperty Action

  13. Introduction to JSP



Spring



  1. Spring Tutorial

  2. Introduction to Spring

  3. Benefits of Using Spring Framework

  4. Inversion of Control in Spring

  5. Introduction to BeanFactory

  6. Dependency Injection in Spring

  7. Collections Setter Injection

  8. Bean Scopes in Spring

  9. Spring IOC Setup Step by Step

  10. Bean Lifecycle in Spring

  11. ApplicationContext

  12. MessageSources in Spring

  13. Web Spring MVC framework

  14. Developing Your First Spring Web Application

  15. Developing Your Second Spring Web Application with Spring Form

  16. Developing Your First Spring Web Application with Spring Validation Framework with Code Example

  17. Spring integration with Hibernate

Struts Tutorial -- Code Examples

DynaActionForm

In this tutorial you will learn how to create Struts DynaActionForm. A regular ActionForm is developed in Java and declared in the struts_config. xml. The JavaBeans properties of a regular ActionForm are created by first defining the instance variable and then adding a getter and setter for that instance variable. A DynaActionForm has no associated Java class. Its JavaBeans properties are created by adding the <form-property> tag in Struts Config file.

For Example : you have a EmpForm and you don't want a java class (EmpForm). EmpForm has propertis firstName, lastName, country .
Follow the below four steps.

Step 1. Adding DynaActionForm Entry in struts-config.xml

Add the following entry in the struts-config.xml file. The <form-property/> tag is used to define the property for the form bean.

<form-bean name="EmpForm"   
         type="org.apache.struts.action.DynaActionForm">
         <form-property name="firstName" type="java.lang.String"/>
         <form-property name="lastName" type="java.lang.String"/>
         <form-property name="country" type="java.lang.String" />
</form-bean>

Step 2. Add action mapping in the struts-config.xml file:

Add the following action mapping in the struts-config.xml file:

<action path="/saveEmp" type="com.techfaq.action.EmpSaveAction"
     name="EmpForm"
     scope="request"
     validate="true"
     input="/jsp/empform.jsp">

    <forward name="success" path="/jsp/success.jsp"/>
    <forward name="failure" path="/jsp/faiure.jsp" />

</action>

Step 3. In the Action class.

public class EmpSaveAction extends Action {
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws Exception{
DynaActionForm empForm = (DynaActionForm)form;
// this is the way you can retrive the value which is set in the JSP Page
String firstName = (String)empForm.get("firstName");
String lastName = (String)empForm.get("lastName");
return mapping.findForward("success");
}
}
}

Step 4. In the JSP page (empform.jsp)

<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html:form>
<html:form action="/saveEmp" method="post">
<html:text property="firstName" size="30" maxlength="30"/>
<html:text property="lastName" size="30" maxlength="30"/>
<html:text property="country" size="30" maxlength="30"/>
<html:submit>Save</html:submit>
</html:form>

Now in the browser type http://localhost:8080/jsp/empform.jsp

Two major differences between a regular ActionForm and a DynaActionForm.

1) For a DynaActionForm, the type attribute of the form-bean is always org.apache.struts.action.DynaActionForm.


2) A DynaActionForm has no associated Java class. Its JavaBeans properties are created by adding the <form-property> tag in Struts Config file.
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