Struts 2, Spring, and Hibernate Integration : model class variable is always null - spring

Question

I am developing an web application using Struts 2, Spring and Hibernate.
When I am running the application its always returning null in model class variables in action class.
Here are the snippets:
StudentPersonalDetails.java:
#Entity
#Table(name="STUDENT_PERSONAL_DETAILS")
public class StudentPersonalDetails {
#Id
#Column(name="Student_ID", unique=true, nullable=false, length=20)
private String StudentId;
#Column(name="FIRST_NAME", nullable=false, length=255)
private String FirstName;
#Column(name="MIDDLE_NAME", nullable=false, length=255)
private String MiddleName;
#Column(name="LAST_NAME", nullable=false, length=255)
private String LastName;
#Column(name="GENDER", nullable=false, length=255)
private String Gender;
#Temporal(TemporalType.DATE)
#Column(name="DATE_OF_BIRTH", nullable=false, length=10)
private Date DateOfBirth;
#Column(name="GUARDIAN", nullable=false, length=255)
private String Guardian;
#Column(name="GUARDIAN_FIRST_NAME", nullable=false, length=255)
private String GuardianFirstName;
#Column(name="GUARDIAN_MIDDLE_NAME", nullable=false, length=255)
private String GuardianMiddleName;
#Column(name="GUARDIAN_LAST_NAME", nullable=false, length=255)
private String GuardianLastName;
#Column(name="STATE_OF_DOMICILE", nullable=false, length=255)
private String StateOfDomicile;
#Column(name="NATIONALITY", nullable=false, length=255)
private String Nationality;
#Column(name="RELIGION", nullable=false, length=255)
private String Religion;
#Column(name="STUDENT_CATEGORY", nullable=false, length=255)
private String Category;
#Embedded
#AttributeOverrides({
#AttributeOverride(name="highestQualification",column=#Column(name="STUDENT_HIGHEST_QUALIFICATION")),
#AttributeOverride(name="yearOfAppearence",column=#Column(name="YEAR_OF_APPEARENCE")),
#AttributeOverride(name="monthOfAppearence",column=#Column(name="MONTH_OF_APPEARENCE"))
})
private QualificationDetails qualificationDetails = new QualificationDetails();
// #ElementCollection
// #JoinTable(name="STUDENT_CONTACT_DETAILS",joinColumns=#JoinColumn(name="STUDENT_ID"))
// #GenericGenerator(name = "hilo-gen", strategy = "hilo")
// #CollectionId(columns = { #Column(name="CONTACT_DETAILS_ID") }, generator = "hilo-gen", type = #Type(type="long"))
// private Collection<ContactDetails> contactDetails = new ArrayList<ContactDetails>();
#Embedded
private ContactDetails contactDetails = new ContactDetails();
public ContactDetails getContactDetails() {
return contactDetails;
}
public void setContactDetails(ContactDetails contactDetails) {
this.contactDetails = contactDetails;
}
public String getStudentId() {
return StudentId;
}
public String getFirstName() {
return FirstName;
}
public String getMiddleName() {
return MiddleName;
}
public String getLastName() {
return LastName;
}
public String getGender() {
return Gender;
}
public Date getDateOfBirth() {
return DateOfBirth;
}
public String getGuardian() {
return Guardian;
}
public String getGuardianFirstName() {
return GuardianFirstName;
}
public String getGuardianMiddleName() {
return GuardianMiddleName;
}
public String getGuardianLastName() {
return GuardianLastName;
}
public String getStateOfDomicile() {
return StateOfDomicile;
}
public String getNationality() {
return Nationality;
}
public String getReligion() {
return Religion;
}
public String getCategory() {
return Category;
}
public void setStudentId(String studentId) {
StudentId = studentId;
}
public void setFirstName(String firstName) {
FirstName = firstName;
}
public void setMiddleName(String middleName) {
MiddleName = middleName;
}
public void setLastName(String lastName) {
LastName = lastName;
}
public void setGender(String gender) {
Gender = gender;
}
public void setDateOfBirth(Date dateOfBirth) {
DateOfBirth = dateOfBirth;
}
public void setGuardian(String guardian) {
Guardian = guardian;
}
public void setGuardianFirstName(String guardianFirstName) {
GuardianFirstName = guardianFirstName;
}
public void setGuardianMiddleName(String guardianMiddleName) {
GuardianMiddleName = guardianMiddleName;
}
public void setGuardianLastName(String guardianLastName) {
GuardianLastName = guardianLastName;
}
public void setStateOfDomicile(String stateOfDomicile) {
StateOfDomicile = stateOfDomicile;
}
public void setNationality(String nationality) {
Nationality = nationality;
}
public void setReligion(String religion) {
Religion = religion;
}
public void setCategory(String category) {
Category = category;
}
public QualificationDetails getQualificationDetails() {
return qualificationDetails;
}
public void setQualificationDetails(QualificationDetails qualificationDetails) {
this.qualificationDetails = qualificationDetails;
}
}
ContactDetails.java:
#Embeddable
public class ContactDetails {
#Column(name="MOBILE_NUMBER", nullable=false, length=255)
private String MobileNumber;
#Column(name="ALTERNATE_NUMBER", nullable=false, length=255)
private String AlternateNumber;
#Column(name="EMAIL_ADDRESS", nullable=false, length=255)
private String EmailAddress;
#Column(name="STREET", nullable=false, length=255)
private String Street;
#Column(name="POST_OFFICE", nullable=false, length=255)
private String PostOffice;
#Column(name="CITY", nullable=false, length=255)
private String City;
#Column(name="PIN_CODE", nullable=false, length=255)
private String PinCode;
#Column(name="STATE", nullable=false, length=255)
private String State;
public String getMobileNumber() {
return MobileNumber;
}
public String getAlternateNumber() {
return AlternateNumber;
}
public String getEmailAddress() {
return EmailAddress;
}
public String getStreet() {
return Street;
}
public String getPostOffice() {
return PostOffice;
}
public String getCity() {
return City;
}
public String getPinCode() {
return PinCode;
}
public String getState() {
return State;
}
public void setMobileNumber(String mobileNumber) {
MobileNumber = mobileNumber;
}
public void setAlternateNumber(String alternateNumber) {
AlternateNumber = alternateNumber;
}
public void setEmailAddress(String emailAddress) {
EmailAddress = emailAddress;
}
public void setStreet(String street) {
Street = street;
}
public void setPostOffice(String postOffice) {
PostOffice = postOffice;
}
public void setCity(String city) {
City = city;
}
public void setPinCode(String pinCode) {
PinCode = pinCode;
}
public void setState(String state) {
State = state;
}
}
QualificationDetails.java:
#Embeddable
public class QualificationDetails {
#Column(name="HIGHEST_QUALIFICATION", nullable=false, length=255)
private String highestQualification;
#Column(name="MONTH_OF_APPEARENCE", nullable=false, length=255)
private String monthOfAppearence;
#Column(name="YEAR_OF_APPEARENCE", nullable=false, length=255)
private String yearOfAppearence;
public String getHighestQualification() {
return highestQualification;
}
public String getYearOfAppearence() {
return yearOfAppearence;
}
public void setHighestQualification(String highestQualification) {
this.highestQualification = highestQualification;
}
public void setYearOfAppearence(String yearOfAppearence) {
this.yearOfAppearence = yearOfAppearence;
}
public String getMonthOfAppearence() {
return monthOfAppearence;
}
public void setMonthOfAppearence(String monthOfAppearence) {
this.monthOfAppearence = monthOfAppearence;
}
}
ImplStudentsDao.java:
public class ImplStudentsDao implements StudentsDAO{
#Autowired
private SessionFactory sf;
#Override
public List<StudentPersonalDetails> allStudentsList() throws Exception {
// TODO Auto-generated method stub
return null;
}
#Override
public void Delete(int StudentId) throws Exception {
try
{
}
catch(Exception ex)
{
throw new Exception("CLASS - ImplStudentPersonalDetailsDao : Method - SAVE : MESSEGE - " +ex);
}
}
#Override
public StudentPersonalDetails FindById(int StudentId) throws Exception {
try
{
}
catch(Exception ex)
{
throw new Exception("CLASS - ImplStudentPersonalDetailsDao : Method - SAVE : MESSEGE - " +ex);
}
return null;
}
#Override
public void Save(StudentPersonalDetails spi) throws Exception {
try
{
this.sf.getCurrentSession().saveOrUpdate(spi);
}
catch(Exception ex)
{
throw new Exception("CLASS - ImplStudentPersonalDetailsDao : Method - SAVE : MESSEGE - " +ex);
}
}
#Override
public void Update(StudentPersonalDetails spi) throws Exception {
try
{
}
catch(Exception ex)
{
throw new Exception("CLASS - ImplStudentPersonalDetailsDao : Method - UPDATE : MESSEGE - " +ex);
}
}
public void setSf(SessionFactory sf) {
this.sf = sf;
}
}
Hibernate configuration hibernate.cfg.xml:
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/studentTest</property>
<property name="connection.username">root</property>
<property name="connection.password">pass</property>
<property name="connection.pool_size">1</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<property name="show_sql">true</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping class="org.Students.Model.StudentPersonalDetails"/>
</session-factory>
</hibernate-configuration>
Bean configuration spring-bean.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<bean name="StudentPersonalDetailsBean" class="org.Students.Model.StudentPersonalDetails">
<property name="contactDetails" ref="contactDetailsBean"/>
<property name="qualificationDetails" ref="qualificationDetailsBean"/>
</bean>
<bean name="contactDetailsBean" class="org.Students.Model.ContactDetails"/>
<bean name="qualificationDetailsBean" class="org.Students.Model.QualificationDetails"/>
<bean name="ImplStudentDaoBean" class="org.Students.Dao.Impl.ImplStudentsDao">
<property name="sf" >
<ref bean="sessionFactory"/>
</property>
</bean>
<bean name="ImplStudentsBoBean" class="org.Students.BO.Impl.ImplStudentsBO">
<property name="stdDao" >
<ref bean="ImplStudentDaoBean"/>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/studentTest" />
<property name="username" value="root" />
<property name="password" value="pass" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="org.Students.Model"></property>
<property name="hibernateProperties">
<props>
<prop key="connection.pool_size">1</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
ApplicationFOrm.jsp:
<%# page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%# taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Registration Form</title>
</head>
<body>
<s:form method="post" action="addStudentAction">
<s:textfield name="spd.StudentId" label="ID" />
<s:textfield name="spd.FirstName" label="First Name" />
<s:textfield name="spd.MiddleName" label="Middle Name" />
<s:textfield name="spd.LastName" label="Last Name" />
<s:textfield name="spd.Gender" label="Gender" />
<s:textfield name="spd.DateOfBirth" label="Date Of Birth" />
<s:textfield name="spd.Guardian" label="Guardian" />
<s:textfield name="spd.GuardianFirstName" label="Guardian First Name" />
<s:textfield name="spd.GuardianMiddleName" label="Guardian Middle Name"/>
<s:textfield name="spd.GuardianLastName" label="Guardian Last Name" />
<s:textfield name="spd.StateOfDomicile" label="State Of Domicile"/>
<s:textfield name="spd.Nationality" label="Nationality" />
<s:textfield name="spd.Religion" label="Religion" />
<s:textfield name="spd.Category" label="Category" />
<s:textfield name="qd.highestQualification" label="Highest Qualification" />
<s:textfield name="qd.monthOfAppearence" label="Month Of Appearence" />
<s:textfield name="qd.yearOfAppearence" label="Year Of Appearence"/>
<s:textfield name="cd.MobileNumber" label="Mobile Number" />
<s:textfield name="cd.AlternateNumber" label="Alternate Number"/>
<s:textfield name="cd.EmailAddress" label="Email Address" />
<s:textfield name="cd.Street" label="Street" />
<s:textfield name="cd.PostOffice" label="Post Office"/>
<s:textfield name="cd.City" label="City"/>
<s:textfield name="cd.PinCode" label="Pin Code"/>
<s:textfield name="cd.State" label="State"/>
<s:submit />
</s:form>
</body>
</html>
ApplicationAction.java:
public class ApplicationAction extends ActionSupport implements Preparable {
private static final long serialVersionUID = 1L;
private static final Logger logger = Logger.getLogger(ApplicationAction.class);
private StudentPersonalDetails spd ;
private ContactDetails cd ;
private QualificationDetails qd ;
private StudentsBO Sbo ;
public String execute()
{
System.out.println("Registration Successful!");
return "success";
}
public void validate()
{
System.out.println("validate Method Called");
spd = new StudentPersonalDetails();
System.out.println(spd.getStudentId());
System.out.println(spd.getFirstName());
System.out.println(spd.getMiddleName());
System.out.println(spd.getLastName());
System.out.println(spd.getGender());
System.out.println(spd.getDateOfBirth());
System.out.println(spd.getGuardian());
System.out.println(spd.getGuardianFirstName());
System.out.println(spd.getGuardianMiddleName());
System.out.println(spd.getGuardianLastName());
System.out.println(spd.getStateOfDomicile());
System.out.println(spd.getNationality());
System.out.println(spd.getReligion());
System.out.println(spd.getCategory());
System.out.println(qd.getHighestQualification());
System.out.println(qd.getMonthOfAppearence());
System.out.println(qd.getYearOfAppearence());
System.out.println(cd.getAlternateNumber());
System.out.println(cd.getCity());
System.out.println(cd.getEmailAddress());
System.out.println(cd.getMobileNumber());
System.out.println(cd.getPinCode());
System.out.println(cd.getPostOffice());
System.out.println(cd.getState());
System.out.println(cd.getStreet());
if (spd.getStudentId() == null || spd.getStudentId().trim().equals(""))
{
addFieldError("spd.StudentId","The Student Id is required");
}
if (spd.getFirstName() == null || spd.getFirstName().trim().equals(""))
{
addFieldError("spd.FirstName","The First Name is required");
}
if (spd.getMiddleName() == null || spd.getMiddleName().trim().equals(""))
{
addFieldError("spd.MiddleName","The Middle Name is required");
}
if (spd.getLastName() == null || spd.getLastName().trim().equals(""))
{
addFieldError("spd.LastName","The Last Name is required");
}
if (spd.getGender() == null || spd.getGender().trim().equals(""))
{
addFieldError("spd.Gender","The Gender is required");
}
if (spd.getDateOfBirth() == null || spd.getDateOfBirth().toString().trim().equals(""))
{
addFieldError("spd.DateOfBirth","The Date Of Birth is required");
}
if (spd.getGuardian() == null || spd.getGuardian().trim().equals(""))
{
addFieldError("spd.Guardian","The Guardian is required");
}
if (spd.getGuardianFirstName() == null || spd.getGuardianFirstName().trim().equals(""))
{
addFieldError("spd.GuardianFirstName","The Guardian FirstName is required");
}
if (spd.getGuardianMiddleName() == null || spd.getGuardianMiddleName().trim().equals(""))
{
addFieldError("spd.GuardianMiddleName","The Guardian MiddleName is required");
}
if (spd.getGuardianLastName() == null || spd.getGuardianLastName().trim().equals(""))
{
addFieldError("spd.GuardianLastName","The Guardian LastName is required");
}
if (spd.getStateOfDomicile() == null || spd.getStateOfDomicile().trim().equals(""))
{
addFieldError("spd.StateOfDomicile","The State Of Domicile is required");
}
if (spd.getNationality() == null || spd.getNationality().trim().equals(""))
{
addFieldError("spd.Nationality","The Nationality is required");
}
if (spd.getReligion() == null || spd.getReligion().trim().equals(""))
{
addFieldError("spd.Religion","The Religion is required");
}
if (spd.getCategory() == null || spd.getCategory().trim().equals(""))
{
addFieldError("spd.Category","The Category is required");
}
if (qd.getHighestQualification() == null || qd.getHighestQualification().trim().equals(""))
{
addFieldError("qd.highestQualification","Highest Qualification is required");
}
if (qd.getMonthOfAppearence() == null || qd.getMonthOfAppearence().trim().equals(""))
{
addFieldError("qd.monthOfAppearence","Month Of Appearence is required");
}
if (qd.getYearOfAppearence() == null || qd.getYearOfAppearence().trim().equals(""))
{
addFieldError("qd.yearOfAppearence","The Year Of Appearence is required");
}
if (cd.getAlternateNumber() == null || cd.getAlternateNumber().trim().equals(""))
{
addFieldError("cd.AlternateNumber","The Alternate Number is required");
}
if (cd.getStreet() == null || cd.getStreet().trim().equals(""))
{
addFieldError("cd.Street","Street is required");
}
if (cd.getCity() == null || cd.getCity().trim().equals(""))
{
addFieldError("cd.City","The City is required");
}
if (cd.getEmailAddress() == null || cd.getEmailAddress().trim().equals(""))
{
addFieldError("cd.EmailAddress","The Email Address is required");
}
if (cd.getMobileNumber() == null || cd.getMobileNumber().trim().equals(""))
{
addFieldError("cd.MobileNumber","The Mobile Number is required");
}
if (cd.getPinCode() == null || cd.getPinCode().trim().equals(""))
{
addFieldError("cd.PinCode","The Pin Code is required");
}
if (cd.getPostOffice() == null || cd.getPostOffice().trim().equals(""))
{
addFieldError("cd.PostOffice","The Post Office is required");
}
if (cd.getState() == null || cd.getState().trim().equals(""))
{
addFieldError("cd.State","The State is required");
}
}
public String addStudent()
{
System.out.println("addStudent Method Called");
System.out.println(spd.getStudentId());
System.out.println(spd.getFirstName());
System.out.println(spd.getMiddleName());
System.out.println(spd.getLastName());
System.out.println(spd.getGender());
System.out.println(spd.getDateOfBirth());
System.out.println(spd.getGuardian());
System.out.println(spd.getGuardianFirstName());
System.out.println(spd.getGuardianMiddleName());
System.out.println(spd.getGuardianLastName());
System.out.println(spd.getStateOfDomicile());
System.out.println(spd.getNationality());
System.out.println(spd.getReligion());
System.out.println(spd.getCategory());
System.out.println(qd.getHighestQualification());
System.out.println(qd.getMonthOfAppearence());
System.out.println(qd.getYearOfAppearence());
System.out.println(cd.getAlternateNumber());
System.out.println(cd.getCity());
System.out.println(cd.getEmailAddress());
System.out.println(cd.getMobileNumber());
System.out.println(cd.getPinCode());
System.out.println(cd.getPostOffice());
System.out.println(cd.getState());
System.out.println(cd.getStreet());
spd.setQualificationDetails(qd);
spd.setContactDetails(cd);
try {
Sbo.saveOrUpdate(spd);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "success";
}
#Override
public void prepare() throws Exception {
}
public void setSpd(StudentPersonalDetails spd) {
this.spd = spd;
}
public void setCd(ContactDetails cd) {
this.cd = cd;
}
public void setQd(QualificationDetails qd) {
this.qd = qd;
}
public void setSbo(StudentsBO sbo) {
Sbo = sbo;
}
}
applicationContext.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<import resource="classpath*:SusBusinessServiceLayerSpringConfig*.xml"/>
<bean name="ApplicationAction" class="org.Student.ActionClasses.ApplicationAction" scope="prototype">
<property name="spd">
<ref bean="StudentPersonalDetailsBean"/>
</property>
</bean>
</beans>
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
<display-name>Embedded Student Test</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
Now the thing is that when I deploy the war file in the apache tomcat and fill up the jsp form the action class model variable printing null values. I don't understand why .
I forgot to mention, here is the
struts.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache software foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<constant name="struts.custom.i18n.resources" value="messages" />
<package name="default" extends="struts-default">
<action name="addStudentAction" class="org.Student.ActionClasses.ApplicationAction" method="addStudent" >
<result name="success">/ApplyOnline/RegistrationSucessful.jsp</result>
<result name="input">/ApplyOnline/ApplicationForm.jsp</result>
<result name="failure">/ApplyOnline/ApplicationForm.jsp</result>
</action>
</package>
</struts>

Answer 1

Because you instantiate a model class too late. You should do it before the params interceptor. You can do it inline or in constructor, but not in the validate method.
private StudentPersonalDetails spd = new StudentPersonalDetails();
private ContactDetails cd = new ContactDetails() ;
private QualificationDetails qd = new QualificationDetails() ;
public void validate() {
System.out.println("validate Method Called");
spd = new StudentPersonalDetails();
EDIT:
The spring configuration should be
<bean id="ApplicationAction" class="org.Student.ActionClasses.ApplicationAction" scope="prototype"/>
Struts configuration:
<action name="addStudentAction" class="ApplicationAction">