Test Hibernate+mysql Simple data storage

Want to use the Hibernate framework, read a hibernate learning video online, try to do a small Java connection database operation, Java beginner One, we have a lot to forgive

Development environment:

1. Install MySQL,

2. Install the eclipse+ plugin hibernatetools-update-4.1.2 plugin

3.java Package Import 1.hibernate-core 2.junit4.0 3.mysql

Ideas:

1. Configure Hibernate configuration Files

　　

<?XML version= "1.0" encoding= "UTF-8"?><!DOCTYPE hibernate-configuration Public "-//hibernate/hibernate configuration DTD 3.0//en" "Http://hibern Ate.sourceforge.net/hibernate-configuration-3.0.dtd "><hibernate-configuration>    <session-factory>    < Propertyname= "Connection.username">Root</ Property> <!--Database user name -    < Propertyname= "Connection.password"></ Property>     <!--Database Password -    < Propertyname= "Connection.driver_class">Com.mysql.jdbc.Driver</ Property>    < Propertyname= "Connection.url">Jdbc:mysql:///hibernate?useunicode=true&amp;Charactertencoding=utf-8</ Property>    < Propertyname= "dialect">Org.hibernate.dialect.MySQLDialect</ Property>          < Propertyname= "Show_sql">True</ Property> <!--SQL output to console -    < Propertyname= "Format_sql" >True</ Property> <!--Formatting SQL -    < Propertyname= "Hbm2ddl.auto">Update</ Property>    <!--create|update|create-drop|validate: Check that the data table structure is the same -              <MappingResource= "Students.hbm.xml" />    <!--Student configuration Files -    </session-factory></hibernate-configuration>

2. Definition of persistent words student class

//Student Class Public classStudents {//1. Common Classes//2. Provide the default construction method of the public without parameters//3. Property Private//4. Attribute Setter/getter Encapsulation    Private intSID; PrivateString sname; PrivateString Gender; PrivateString address;  PublicStudents () {} PublicStudents (intsid, String sname, String gender, string address) {        //super ();         This. Sid =SID;  This. sname =sname;  This. Gender =gender;  This. Address =address; }     Public intGetSID () {returnSID; }     Public voidSetsid (intSID) {         This. Sid =SID; }     PublicString Getsname () {returnsname; }     Public voidsetsname (String sname) { This. sname =sname; }     PublicString Getgender () {returngender; }     Public voidSetgender (String gender) { This. Gender =gender; }     PublicString getaddress () {returnaddress; }     Public voidsetaddress (String address) { This. Address =address; } @Override PublicString toString () {return"Students [sid=" + Sid + ", sname=" + sname + ", gender=" + Gender + ", address=" + address + "]"; }}

3. Configure the Students.hbm.xml file, this is done automatically by the Hibernate plugin tool, src Right-click-other-hibernate-hbm.xml configuration file

<?XML version= "1.0"?><!DOCTYPE hibernate-mapping Public "-//hibernate/hibernate mapping DTD 3.0//en" "http://hibernate.sourceforge.net/ Hibernate-mapping-3.0.dtd "><!--Generated 2015-6-25 19:45:24 by Hibernate Tools 3.4.0.CR1 -<hibernate-mapping>    <classname= "Students"Table= "STUDENTS">        <IDname= "Sid"type= "int">            <columnname= "SID" />            <Generatorclass= "Assigned" />        </ID>        < Propertyname= "Sname"type= "Java.lang.String">            <columnname= "SNAME" />        </ Property>        < Propertyname= "Gender"type= "Java.lang.String">            <columnname= "GENDER" />        </ Property>        < Propertyname= "Address"type= "Java.lang.String">            <columnname= "ADDRESS" />        </ Property>    </class></hibernate-mapping>

4. Define a Studentstest test class

Importorg.hibernate.Session;Importorg.hibernate.SessionFactory;Importorg.hibernate.Transaction;Importorg.hibernate.cfg.Configuration;ImportOrg.hibernate.service.ServiceRegistry;ImportOrg.hibernate.service.ServiceRegistryBuilder;ImportOrg.junit.After;ImportOrg.junit.Before;Importorg.junit.Test;//Test Class//@SuppressWarnings ("deprecation") Public classStudentstest {PrivateSessionfactory sessionfactory;//Session Factory    PrivateSession session;//Session    PrivateTransaction Transaction; @Before//before     Public voidInit ()//Initialize    {        //creating a Configuration objectConfiguration config=NewConfiguration (). Configure (); //Create a Service registration objectServiceregistry serviceregistry=NewServiceregistrybuilder (). Applysettings (Config.getproperties ()). Buildserviceregistry (); //To create a session factory objectsessionfactory=config.buildsessionfactory (serviceregistry); //Session Objectsession=sessionfactory.opensession (); //Open Transactiontransaction=session.begintransaction (); } @After//after     Public voiddestory () {transaction.commit (); //Commit a transactionSession.close ();//Close SessionSessionfactory.close ();//Close Session Factory} @Test//Test     Public voidtestsavestudents () {Students s=NewStudents (3, "Zhang San Feng", "male", "Wudangshan");            Session.save (s); Students S1=NewStudents (4, "Shexunyu", "Male", "xianning");    Session.save (S1); //saving objects into the database    }        }

5. When this is done, the directory structure of the project is given to everyone

6. You can right-click studentstest right-runas-junit test it, OK, code I uploaded, click here to download

Http://files.cnblogs.com/files/shexunyu/Java-Hibernate_002.zip

User:shexunyu date:2015-06-26 Contact:

Test Hibernate+mysql Simple data storage