Application Development

Maven

• Multi module project
• Parent POM
• Add <modules> tag to add projects
• Child POM
• Add <Parent> element with  change group id, artifact id and version of Parent POM
• If one child is dependent on other then add coordinates to respective POM under dependency section.

• Install Jars that doesn't have central mvn coordinates 
• mvn install:install-file -Dfile="D:\softwares\jstl-1.2.jar" -DgroupId=javax.servlet -DartifactId=jstl -Dversion=1.2 -Dpackaging=jar 

Hibernate 4

1.         <dependency>
               <groupId>org.hibernate</groupId>
               <artifactId>hibernate-core</artifactId>
               <version>4.3.11.Final</version>
           </dependency>
           <dependency>
               <groupId>com.oracle</groupId>
               <artifactId>ojdbc7</artifactId>
               <version>12.2.0.1</version>
           </dependency>
   
2.  hibernate.cfg.xml
   
   <?xml version="1.0" encoding="utf-8"?>
   <!DOCTYPE hibernate-configuration PUBLIC
   "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
   "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
   <hibernate-configuration>
       <session-factory>
           <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
           <property name="hibernate.connection.url">jdbc:oracle:thin:@slc12lpa.us.oracle.com:1521:orcl</property>
           <property name="hibernate.connection.username">vdesu</property>
           <property name="hibernate.connection.password">vdesu1</property>
           <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>
           <property name="hibernate.default_schema">vdesu</property>
           <property name="show_sql">true</property>
           <mapping class="com.venkat.projects.hibernate.Student"></mapping>
       </session-factory>
   </hibernate-configuration>
3. 
   import org.hibernate.Session;
   import org.hibernate.SessionFactory;
   import org.hibernate.Transaction;
   import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
   import org.hibernate.cfg.Configuration;
   import org.hibernate.service.ServiceRegistry;
   
   public class App
   {
       public static void main( String[] args )
       {
           Student student = new Student();
           student.setStudentId(3);
           student.setStudentName("vdesu");
           student.setStudentSubject("CS")
           Configuration cfg = new Configuration();
           cfg.configure();
           ServiceRegistry serReg = new StandardServiceRegistryBuilder().
                       applySettings(cfg.getProperties()).build();
           SessionFactory sessionFactory = cfg.buildSessionFactory(serReg);
           Session session = sessionFactory.openSession();
           Transaction tx = session.beginTransaction();
           session.save(student);
           tx.commit();
           System.out.println("saved");
       }
   }
   

REST Services

1. Create Maven project of archetype jersey-quickstart-webapp
2.