Hibernate连接MySQL

1 下载hibernate-3.6.0 Final.zip到任意目录，解压缩后得到hibernate目录

 

2 下载slf4j-1.7.13.zip到任意目录，解压缩后得到slf4j-1.7.13

 

3 在test库中创建student表

msql -localhost -u root –p

use test

create table student(NO char(20),name varchar(20),primarykey(NO));

 

4 创建一个名为HibernateDemo的Java Project

 

5 添加包

添加hibernatejar中的所有包

添加slf4j-1.7.13中的slf4j-nop-1.7.13.jar

添加MySQL的驱动程序mysql-connector-Java-5.1.38-bin.jar

 

6添加两个配置文件和两个类

Hibernate.cfg.xml

Student.java

Student.hbm.xml

Test.java

 

（1）在src目录下添加目录下添加hibernate.cfg.xml

 

<!DOCTYPE hibernate-configuration PUBLIC
 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
    <!--程序执行的时候是否显示真正的sql语句-->
    <property name="show_sql">true</property>
    <!--使用的SQL对应的“方言”，此处是Oracle11的“方言”-->
    <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect
    </property>
    <!--连接数据库的Driver-->
    <property name="connection.driver_class">
        com.mysql.jdbc.Driver
    </property>
    <!--数据库连接url-->
    <property name="connection.url">
        jdbc:mysql://localhost:3306/test
    </property>
    <!--用户名-->
    <property name="connection.username">root</property>
    <!--密码-->
    <property name="connection.password">123456</property>
    <mapping resource="Student.hbm.xml"/>
</session-factory>
</hibernate-configuration>

（2）在src目录下的com.abc包中添加Student.java

 

package com.abc;

public class Student {
    private String NO;
    private String name;

    public String getNO() {
        return NO;
    }
    public void setNO(String NO) {
        this.NO = NO;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

（3）在src目录下添加Student.hbm.xml

 

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping
        PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.abc">
    <class name="Student" table="Student">
        <id name="NO">
            <generator class="assigned" />
        </id>
        <property name="name" column="name" type="java.lang.String" />
    </class>
</hibernate-mapping>

（4）Test.java

 

package com.abc;

import org.hibernate.*;
import org.hibernate.cfg.*;

public class Test {
    public static void main(String[] args) {
        try {
            //通过Configuration获得一个SessionFactory对象
            SessionFactory sf = new Configuration().configure().buildSessionFactory();
            //打开一个Session
            Session session = sf.openSession();
            //开始一个事务
            Transaction tx = session.beginTransaction();
            //创建一个Student对象
            Student stu = new Student();
            //通过session的save()方法将Student对象保存到数据库中
            stu.setNO("2016003");
            stu.setName("Zhang San");
            session.save(stu);
            //提交事务
            tx.commit();
            //关闭会话
            session.close();
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
}

7 验证

（1）运行Test.java，结果为

Hibernate: insert into Student (name, NO)values (?, ?)

 

（2）从MySQL中查询数据