Hibernate环境搭建与配置方法(Hello world配置文件版)

前端技术 2023/09/06 Java

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:

create database hibernate;

(b)切换数据库:

use hibernate;

(c)创建Student表:

create table Student(id int primary key,name varchar(20),age int);

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:

<?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>

建立Student类:

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;
 }
}

建立Student的映射文件:Student.hbm.xml

<?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>

最后测试:

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();
 }
}

希望本文所述对大家Hibernate框架程序设计有所帮助。

本文地址:https://www.stayed.cn/item/16856

转载请注明出处。

本站部分内容来源于网络,如侵犯到您的权益,请 联系我

我的博客

人生若只如初见,何事秋风悲画扇。