Tuesday, November 16, 2010

Hibernate Insert records into table

Problem:

To insert data into student table in navalady database.

Solution:


Procedure:


Step 1:

Create Hibernate Reverse Engineering wizard

Step 2:

Create HibernateUtil.java for Creating SessionFactory.

I have created HibernateUtil.java named as NewHibernateUtil.java.

Include following coding into NewHibernateUtil.java

package Hiber;

import java.sql.*;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import java.io.*;

public class NewHibernateUtil
{
public static final SessionFactory sessionFact;
static
{
try
{
sessionFact = new Configuration().configure().buildSessionFactory();
}
catch(Throwable e)
{
System.out.println("SessionFactory creation failed." + e);
throw new ExceptionInInitializerError(e);
}
}
public static final ThreadLocal session = new ThreadLocal();

public static Session currentSession() throws HibernateException
{
Session sess = (Session) session.get();
if(sess == null)
{
sess = sessionFact.openSession();
session.set(sess);
}
return sess;
}
public static void SessionClose() throws Exception
{
Session s = (Session) session.get();
if (s != null)
{
s.close();
session.set(null);
}
}
}

Step 3:
Create POJO class and mapping files

Step 4:

Create jsp file named as HCQinsert.jsp

Include following coding into the HCQinsert.jsp


< %@page import="java.util.Date"% >
< %@page import="Hiber.Student"% >
< %@page import="org.hibernate.*" % >
< %@page import="org.hibernate.cfg.*" % >
< %@page import="Hiber.NewHibernateUtil" % >
< html >
< head >
< title > Hibernate Native SQL-Insert into table < /title >
< /head >
< body >
< %! Session sz; % >
< %
try
{
sz=NewHibernateUtil.currentSession();
Transaction tz=sz.beginTransaction();

Student st=new Student();
st.setStuname("Nithya");
st.setStuno(1003);
st.setTamil(69);
st.setEnglish(64);
st.setMaths(90);
st.setScience(79);
st.setSocialscience(87);
Date d=new Date("1999/06/25");
st.setJoindate(d);
sz.save(st);

out.println("Successfully Inserted into the Student table in Navalady Datebase");
tz.commit();

}
catch(Exception e)
{
sz.close();

out.println("Error Occur");
}

% >
< /body >
< /html >

output



Now we have to check using mysql database using following query.

mysql > select * from student;

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