Oracle Additions and deletions

Oracle Starter Case:

1. Create an entity class student and override the ToString method

 Packagecn.happy.entity; Public classStudent { PublicInteger getId () {returnID; }     Public voidsetId (Integer id) { This. ID =ID; }     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     PublicInteger getage () {returnAge ; }     Public voidsetage (Integer age) { This. Age =Age ; } @Override PublicString toString () {return"Student [name=" + name + ", age=" + Age + ", id=" + ID + "]"; }    PrivateString name; PrivateInteger age; PrivateInteger ID;

}

2. Importing the JAR Package

3. Create a large configuration associated small configuration

<?xml version= ' 1.0 ' encoding= ' utf-8 '?>
<! DOCTYPE hibernate-configuration Public
"-//hibernate/hibernate Configuration DTD 3.0//en"
"Http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd" >

<session-factory>
<property name= "Connection.driver_class" >oracle.jdbc.OracleDriver</property>
<property name= "Connection.url" >jdbc:oracle:thin: @localhost:1521:orcl</property>
<property name= "Connection.username" >scott</property>
<property name= "Connection.password" >0123</property>

<!--output all SQL statements to the console. -
<property name= "Hibernate.show_sql" >true</property>

<!--print more beautiful SQL in log and console. -
<property name= "Hibernate.format_sql" >true</property>
<!--dialect---
<property name= "Hibernate.dialect" >org.hibernate.dialect.Oracle10gDialect</property>

<property name= "Hbm2ddl.auto" >update</property>


<mapping resource= "Cn/happy/entity/student.hbm.xml"/>


</session-factory>

4. Write small configuration coding= ' utf-8 '?>

<! DOCTYPE hibernate-     mappingPublic "-//hibernate/hibernate mapping DTD 3.0//en"    "/http WWW.HIBERNATE.ORG/DTD/HIBERNATE-MAPPING-3.0.DTD "> Package  =" Cn.happy.entity ">     <  Class Name= "Student" table= "Student" >         <id name= "id" type= "int" column= "id" >         </id>         <property name= "Name" type= "string" column= "name"/>         <property name= "age" type= "Int." column= "Age"/>     </class>     

5. Tool Class

 Packagecn.happy.entity;Importorg.hibernate.Session;Importorg.hibernate.SessionFactory;Importorg.hibernate.cfg.Configuration; Public classHibernateutil {Private StaticConfiguration cfg=NewConfiguration (). Configure (); Private StaticSessionfactory factory=cfg.buildsessionfactory (); //01. Method to return to session     Public StaticSession getsession () {returnfactory.opensession (); }        //02. Close Session     Public Static voidclosesession () {getsession (). Close (); }    }

6. Test class

    //1.2 Revision Students@Test Public voidUpdatetest () {Session session=hibernateutil.getsession (); //object not tracked by context         /*Student stu=new Student ();         Stu.setid (3); Stu.setname ("Cold Rain Training Camp");*/                  //Way Two: How to use the context tracking method//retrieves a record, an entity objectStudent stu= (Student) session.load (Student.class, 3); Stu.setname ("Jin Long refueling!!!!" "); Transaction TX=session.begintransaction ();         Session.update (Stu);         Tx.commit ();         Hibernateutil.closesession (); System.out.println ("Update ok!"); }    

Oracle Additions and deletions