Hibernate环境搭建与配置方法(Hello world配置文件版)
本文实例讲述了Hibernate环境搭建与配置方法。分享给大家供大家参考,具体如下:
1.下载hibernatejar包:hibernate-release-4.3.5.Final,导入必要的jar包,路径为:hibernate-release-4.3.5.Final\lib\required。
包含的jar包有10个。
2.建立新的java项目。
3.学习自己建立UserLibrary:
(a)项目右键——buildpath——configurebuildpath——addlibrary.
(b)选择User-library,在其中新建library,命名为hibernate。
(c)在library中加入hibernate所需要的jar包(路径为:hibernate-release-4.3.5.Final\lib\required),helloworld就够了,其他的还要加。
4.引入数据库的jdbc驱动。我用的mysql:mysql-connector-java-5.1.7-bin.jar
(a)创建数据库:
createdatabasehibernate;
(b)切换数据库:
usehibernate;
(c)创建Student表:
createtableStudent(idintprimarykey,namevarchar(20),ageint);
5.建立hibernate的配置文件hibernate.cfg.xml,强烈建议在hibernate-release-4.3.5.Final\documentation\manual\en-US\html_single路径下的帮助文档中copy。
地点:1.1.4.Hibernateconfiguration。内容修改后:
<?xmlversion='1.0'encoding='utf-8'?> <!DOCTYPEhibernate-configurationPUBLIC "-//Hibernate/HibernateConfigurationDTD3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!--Databaseconnectionsettings--> <propertyname="connection.driver_class">com.mysql.jdbc.Driver</property> <propertyname="connection.url">jdbc:mysql://localhost/hibernate</property> <propertyname="connection.username">XXX</property> <propertyname="connection.password">XXXX</property> <!--JDBCconnectionpool(usethebuilt-in)--> <!-- <propertyname="connection.pool_size">1</property> --> <!--SQLdialect--> <propertyname="dialect">org.hibernate.dialect.MySQLDialect</property> <!--EnableHibernate'sautomaticsessioncontextmanagement--> <propertyname="current_session_context_class">thread</property> <!--Disablethesecond-levelcache--> <propertyname="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property> <!--EchoallexecutedSQLtostdout--> <propertyname="show_sql">true</property> <!--Dropandre-createthedatabaseschemaonstartup--> <!-- <propertyname="hbm2ddl.auto">update</property> --> <mappingresource="com/huxing/hibernate/model/Student.hbm.xml"/> </session-factory> </hibernate-configuration>
建立Student类:
publicclassStudent{ privateintid; privateStringname; privateintage; publicintgetId(){ returnid; } publicvoidsetId(intid){ this.id=id; } publicStringgetName(){ returnname; } publicvoidsetName(Stringname){ this.name=name; } publicintgetAge(){ returnage; } publicvoidsetAge(intage){ this.age=age; } }
建立Student的映射文件:Student.hbm.xml
<?xmlversion="1.0"?> <!DOCTYPEhibernate-mappingPUBLIC "-//Hibernate/HibernateMappingDTD3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mappingpackage="com.huxing.hibernate.model"> <classname="Student"table="student"> <idname="id"column="id"> </id> <propertyname="name"type="string"column="name"/> <propertyname="age"type="int"column="age"/> </class> </hibernate-mapping>
最后测试:
importorg.hibernate.Session; importorg.hibernate.SessionFactory; importorg.hibernate.cfg.Configuration; importcom.huxing.hibernate.model.Student; publicclassStudentTest{ publicstaticvoidmain(String[]args){ Studenta=newStudent(); a.setId(123); a.setAge(32); a.setName("hellohibernate!"); Configurationcfg=newConfiguration(); SessionFactorycf=cfg.configure().buildSessionFactory(); Sessionsession=cf.openSession(); session.beginTransaction(); session.save(a); session.getTransaction().commit(); session.close(); cf.close(); } }
希望本文所述对大家Hibernate框架程序设计有所帮助。