Hibernate之配置文件

hibernate.cfg.xml

<?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>
        <!--用户名 -->
        <property name="hibernate.connection.username">root</property>
        <!--密码 -->
        <property name="hibernate.connection.password">root</property>
        <!--url信息 -->
        <property name="hibernate.connection.url">
            jdbc:mysql://localhost:3306/test
        </property>
        <!--数据库驱动信息 -->
        <property name="hibernate.connection.driver_class">
            com.mysql.jdbc.Driver
        </property>
        <!--数据库方言信息 -->
        <property name="dialect">
            org.hibernate.dialect.MySQLDialect
        </property>
        <!-- 数据库表生成策略 create创建 update更新 -->
        <property name="hbm2ddl.auto">update</property>

        <!-- 是否打印SQL语句 -->
        <property name="show_sql">true</property>
        <!-- 是否格式化SQL语句 -->
        <property name="format_sql">true</property>

        <!-- sessionFactory.getCurrentSession()所需 -->
        <property name="hibernate.current_session_context_class">thread</property>

        <!--指定Hibernate映射文件需要关联的映射对象 -->
        <mapping resource="com/foo/hibernate/bean/student.hbm.xml" />
    </session-factory>
</hibernate-configuration>

student.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <!-- 对应表STUDENT -->
    <class name="com.foo.hibernate.bean.Student" table="STUDENT">
        <!-- hibernate方言会将java类型转换成数据库数据类型 -->
        <id name="id" type="int">
            <!-- 字段 -->
            <column name="ID" />
            <!-- 生成策略 native由数据库生成,如果创建时设置值也会忽视 -->
            <generator class="native" />
        </id>
        <property name="name" type="java.lang.String">
            <column name="NAME" />
        </property>
        <property name="age" type="int">
            <column name="AGE" />
        </property>
    </class>
</hibernate-mapping>

Student.java

package com.lee.hibernate.bean;

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;
    }

    public Student() {
    }

    public Student(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }

}