In this section, you know how to update the database data through the jpa.
In this section, you know how to update the database data through the jpa.In this section, you know how to update the database data through the jpa. You follow the following steps for updating the data. To update the data into database you can follow the following steps:
Follow the following steps to develop the example code to update the data into database.
Create a "JPAUpdate.java" file./** * */ package roseindia; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; /** * @author Administrator * */ public class JPAUpdate { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub EntityManagerFactory emf = Persistence.createEntityManagerFactory("jpa"); EntityManager em = emf.createEntityManager(); try{ em.getTransaction().begin(); //find Student stud1 = em.find(Student.class,1); stud1.setSname("Deepak"); //update em.merge(stud1); em.getTransaction().commit(); } catch(Exception e){ System.out.println(e.getMessage()); } finally{ em.close(); } } } |
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