JBuilder + Hibernate + Tomcat Quick Start

JBuilder Hibernate Tomcat Quick Start

Gaoke Hua

About the author: Gao Jinghua, Nanjing Aviation College computing a master's degree in mathematics, more than ten years of corporate informationization work experience. Current research interest, J2EE enterprise application, ERP software research and development, data warehouse system research and development. This article gives a general step in developing the Hibernate Tomcat web application with JBuilder.

1. Download Hibernate-2.1.x.ziphttp: //prdownloads.sourceforge.net/hibernate/? Sort_by = Date & Sort = DESC

2. Installation, extract the zip file to jbuilder_home / thirdparty

3. In the new Hibernate library in JBuilder 2005, select Menu Tools-Configure-Libraries, click the New button in the pop-up dialog box, enter the name of the Hibernate library: Hibernate, click the Add button to add the file hibernate2.jar in the hibernate directory. In the Hibernate library, the corresponding * .jar in the hibernate / lib directory is added to the Hibernate library as needed, which generally requires these categories: DOM4J, CGLIB, COMMONS Collections, Commons Logging, ODMG4, EHCACHE

4. New project files, select the menu file-new project, name to myProject

Set the properties of the project file, select the menu Project-Project Properties, select Tomcat as the server, join the Hibernate library to Path / Required Libraries.

5. New web module, select the menu file-new, named QuickStart for the web module

6. Use the servlet wizard to create a servlet file, select the menu file-new, select the web-standard servlet in the pop-up dialog, name servlet1, in the fifth step of the wizard, select Create a Runtime Configuration

7. Run servlet1

8. Add the file server8080.xml in the QuickStart / Tomcat / Conf directory to the project file, modify the content of Server8080.xml

factory

org.apache.commons.dbcp.basicDataSourceFactory

URL

jdbc: hsqldb: hsql: // localhost

JDBC: Microsoft: SQLServer: // NT04: 1433; DatabaseName = Test

driverclassname

Org.hsqldb.jdbcdriver

com.microsoft.jdbc.sqlserver.sqlserverdriver

Username

sa

Password

maxwait

3000

maxidle

100

maxactive

10

9. Set Hibernate, create new files in the QuickStart / src directory, hibernate.cfg.xml as follows:

PUBLIC "- // Hibernate / Hibernate Configuration DTD // EN"

"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">

Java: Comp / Env / JDBC / QuickStart

false

Net.sf.hibernate.Dialect.postgreSqldiaAlaforct

10. Newly built a lasting class

Package net.sf.hibernate.examples.quickstart;

PUBLIC Class Cat {

Private string id;

PRIVATE STRING NAME;

Private char sex;

PRIVATE FLOAT Weight;

Public cat () {

}

Public string getId () {

Return ID;

}

Private void setid (string id) {

THIS.ID = ID;

}

Public string getname () {

Return Name;

}

Public void setname (String name) {

THIS.NAME = Name;

}

Public char getsex () {

Return SEX;

}

Public void setsex (char sex) {

THIS.SEX = SEX;

}

Public float getWeight () {

Return weight;

}

Public void setWeight (Float Weight) {

THIS.WEIGHT = Weight;

}

}

11. Create a new image in the QuickStart / SRC directory Cat.hbm.xml as follows:

Public "- // hibernate / hibernate mapping dtd // en"

"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

Generated by hibernate with the uuid pattern. ->

12. Prepare the database

13. Create a new class HibernateUtil

Import net.sf.hibernate. *;

Import net.sf.hibs. *;

Public class hibernateutil {

Private static log log = logfactory.getlog (HibernateUtil.class);

PRIVATE STATIC FINAL SESSIONFACTORY SESSIONFACTORY;

STATIC {

Try {

// Create the sessionFactory

SESSIONFACTORY = New Configuration (). CONFIGURE (). BuildSessionFactory ();

} catch (throwable ex) {

Log.Error ("Initial SessionFactory Creation Failed.", EX);

Throw New ExceptioninInitializerError (ex);

}

}

PUBLIC Static Final Threadlocal session = new threadlocal ();

PUBLIC STATIC session currentsession () throws hibernateException {session s = (session) session.get ();

// Open a new session, if this thread HAS NONE YET

IF (s == NULL) {

S = sessionFactory.openSession ();

Session.set (s);

}

Return S;

}

Public static void closesession () THROWS HibernateException {

Session s = (session) session.get ();

session.set (null);

IF (s! = null)

s.close ();

}

}

14. Modify servlet1.java

Package net.sf.hibernate.examples.quickstart;

Import javax.servlet. *;

Import javax.servlet.http. *;

Import java.io. *;

Import java.util. *;

Import net.sf.hibernate.transaction;

Import net.sf.hibernate.hibernateException;

Import net.sf.hibernate.Session;

Import net.sf.hibernate.query;

Public class servlet1 extends httpservlet {

Private static final string content_type = "text / html; charSet = BIG5";

Private hibernateutil HibernateUtil = NULL;

// Initialize Global Variables

Public void init () throws servletexception {

}

// Process the http get request

Public void doget (httpservletRequest Request, HttpservletResponse Response) THROWS

ServletException, IOException {

Response.setContentType (Content_Type);

PrintWriter out = response.getwriter ();

HibernateUtil = new hibernateutil ();

Try {

Session session = hibernateutil.currents;

Transaction tx = session.begintransaction ();

Cat princess = new cat ();

Princess.setname ("Princess");

Princess.setSex ('f');

Princess.setWeight (7.4f);

Session.save (Princess);

TX.comMit ();

Query Query = session.createQuery

"SELECT C from Cat as C where C.sex =: SEX");

Query.setCharacter ("SEX", 'F');

Out.println ("");

Out.println ("