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hibernate jar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User Library:
(a)项目右键——build path——configure build path——add library.
(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),hello world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:
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create database hibernate;
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(b)切换数据库:
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use hibernate;
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(c)创建Student表:
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create table Student(id int primary key , name varchar (20),age int );
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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. Hibernate configuration。 内容修改后:
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<? 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">
< hibernate-configuration >
< session-factory >
<!-- Database connection settings -->
< property name = "connection.driver_class" >com.mysql.jdbc.Driver</ property >
< property name = "connection.url" >jdbc:mysql://localhost/hibernate</ property >
< property name = "connection.username" >XXX</ property >
< property name = "connection.password" >XXXX</ property >
<!-- JDBC connection pool (use the built-in) -->
<!--
<property name="connection.pool_size">1</property>
-->
<!-- SQL dialect -->
< property name = "dialect" >org.hibernate.dialect.MySQLDialect</ property >
<!-- Enable Hibernate's automatic session context management -->
< property name = "current_session_context_class" >thread</ property >
<!-- Disable the second-level cache -->
< property name = "cache.provider_class" >org.hibernate.cache.internal.NoCacheProvider</ property >
<!-- Echo all executed SQL to stdout -->
< property name = "show_sql" >true</ property >
<!-- Drop and re-create the database schema on startup -->
<!--
<property name="hbm2ddl.auto">update</property>
-->
< mapping resource = "com/huxing/hibernate/model/Student.hbm.xml" />
</ session-factory >
</ hibernate-configuration >
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建立Student类:
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public class Student {
private int id;
private String name;
private int age;
public int getId() {
return id;
}
public void setId( int id) {
this .id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this .name = name;
}
public int getAge() {
return age;
}
public void setAge( int age) {
this .age = age;
}
}
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建立Student的映射文件:Student.hbm.xml
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<? xml version = "1.0" ?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
< hibernate-mapping package = "com.huxing.hibernate.model" >
< class name = "Student" table = "student" >
< id name = "id" column = "id" >
</ id >
< property name = "name" type = "string" column = "name" />
< property name = "age" type = "int" column = "age" />
</ class >
</ hibernate-mapping >
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最后测试:
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import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.huxing.hibernate.model.Student;
public class StudentTest {
public static void main(String[] args) {
Student a = new Student();
a.setId( 123 );
a.setAge( 32 );
a.setName( "hello hibernate!" );
Configuration cfg = new Configuration();
SessionFactory cf = cfg.configure().buildSessionFactory();
Session session = cf.openSession();
session.beginTransaction();
session.save(a);
session.getTransaction().commit();
session.close();
cf.close();
}
}
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希望本文所述对大家Hibernate框架程序设计有所帮助。