Simple manual Hibernate program Example _jsp programming

This article describes a simple manual Hibernate program example. Share to everyone for your reference. Specifically as follows:

Today I learned the next hibernate, wrote a small manual program, summed up,

First create the database table:

Copy Code code as follows:

CREATE TABLE Increment_testr (ID bigint not NULL, name char (), primary key (ID));

Eclipse, new project.

Create a new database table map, which is done manually:

Incrementtester.java

public class Incrementtester {
  private Long ID;
  private String name;
  Public Incrementtester () {} public
  Incrementtester (String name) {
    this.name = name;
  }
  Public Long GetId () {return
    this.id;
  }
  private void SetId (Long id) {
    this.id = ID;
  }
  Public String GetName () {return
    this.name;
  }
  public void SetName (String name) {
    this.name = name;
  }
}

mapping XML files corresponding to writing

IncrementTester.hbm.xml

Public "-//hibernate/hibernate Mapping DTD 3.0//en"
"Http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
Private

Class Bussinessservice for implementing specific functions

Import java.lang.reflect.*;
Import org.hibernate.*;
Import org.hibernate.cfg.*;
Import java.io.*;
Import java.sql.*;
Import java.util.*;
  public class Bussinessservice {public static sessionfactory sessionfactory;
      static{try{Configuration config = new Configuration (). Configure ();
    Sessionfactory = Config.buildsessionfactory ();
    }catch (Exception e) {e.printstacktrace ();
    } public void Findallobjects (String className) {Sessions session = Sessionfactory.opensession ();
    Transaction tx = NULL;
      try{tx = Session.begintransaction ();
      List objects = Session.createquery ("from" +classname). List ();
        for (Iterator it = Objects.iterator (); It.hasnext ();) {Long id = new Long (0);
        Incrementtester xx = (incrementtester) it.next ();
        Id=xx.getid ();
      System.out.println ("ID of" +classname+ ":" +id+ "Name:" +xx.getname ());
    } tx.commit ();
    }catch (Exception e) {e.printstacktrace ();
   }finally{   Session.close ();
    } public void Saveobject (Object object) {Session session = Sessionfactory.opensession ();
    Transaction tx = NULL;
      try{tx = Session.begintransaction ();
      Session.save (object);
    Tx.commit ();
      }catch (Exception e) {e.printstacktrace ();
      if (TX!= null) {tx.rollback ();
    }}finally{Session.close ();
    } public void Deleteallobject (String className) {Sessions session = Sessionfactory.opensession ();
    Transaction tx = NULL;
      try{tx = Session.begintransaction ();
      Query query=session.createquery ("delete from" +classname);
      Query.executeupdate ();
    Tx.commit ();
      }catch (Exception e) {e.printstacktrace ();
      if (tx!=null) {tx.rollback ();
    }}finally{Session.close ();

 }
  }
}

To implement the main function:

public class Test {
  /**
   * @param args */public
  static void Main (string[] args) {
    //TODO Auto-generat Ed method stub
    String name= "Incrementtester";
    Bussinessservice AA = new Bussinessservice ();
    Aa.deleteallobject (name);
    Object O1 = null;
    try {
      O1 = class.forname (name). newinstance ();
      ((Incrementtester) O1). SetName ("Caijie");
      Aa.saveobject (O1);
      O1 = Class.forName (name). newinstance ();
      ((Incrementtester) O1). SetName ("Gufeng");
      Aa.saveobject (O1);
    } catch (Exception e) {
      e.printstacktrace ();
    }
    Aa.findallobjects (name);
  }

Hibernate configuration file: Hibernate.cfg.xml

Public "-//hibernate/hibernate Configuration dtd//en"
"Http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >
Org.hibernate.dialect.MySQLDialect
Com.mysql.jdbc.Driver
Jdbc:mysql://localhost:3306/test
Root
Root
True

Add the corresponding library, run successfully after the result:

Hibernate:delete from Increment_testr
hibernate:select Max (IDs) from Increment_testr to
Hibernate:insert into Increment_testr (NAME, ID) VALUES (?,?)
Hibernate:insert into Increment_testr (NAME, ID) VALUES (?,?)
Hibernate:select incrementt0_.id as id0_, incrementt0_.name as name0_ from Increment_testr incrementt0_
ID of Increme Nttester:1 Name:caijie
ID of Incrementtester:2 Name:gufeng

I hope this article will help you with the JSP program design.