Question

I am making a web application on STS. I am using jars of Spring 3.1.0 and HIbernate 4.0.1. I am including jars in project build path.
In DAO layer when I am trying to make a HibernateTemplate object , it is not getting instantiate, It is null there. I don’t understand why it is null.

Earlier I was getting an error like NoClassDefinitionFound: org.springframework.orm.hibernate3.HibernateTemplate….Then I included these jars in WEB-INF->lib folder and then this error was removed but still hibernateTemplate object is null. Can there be any issue regarding position of beans.xml in project folders. ? Can anyone help me.

Below is code for my beans.xml and Userinfo.java.

---

[b]Beans.xml[/b]

Only relevant part of bean.xml

<bean id="hibTemplateBean" class="org.springframework.orm.hibernate3.HibernateTemplate" >
    <property name="sessionFactory" ref="sfBean" />
</bean>

---

[b]UserinfoDao.java[/b]

package com.home.dao;

import org.springframework.orm.hibernate3.HibernateTemplate;

import com.home.pojo.User;

public class UserinfoDao {

    public UserinfoDao() {

            super();

        }

    private static HibernateTemplate hibernateTemplate;

    public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
        UserinfoDao.hibernateTemplate = hibernateTemplate;
    }

    public static void fetchUserInfo(){
        try{
            User user = (User)hibernateTemplate.get(User.class, 111);
        }catch(NullPointerException npe){
            npe.printStackTrace();
        }
    }
}

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Answer 1

You are using Hibernate 4 and you are using org.springframework.orm.hibernate3.HibernateTemplate from Hibernate 3 package.

This template is not supported anymore. You can do declarative transaction management.