我的第一个hibernate小程序

今天学写了第一个hibernate小程序。
1 导入 hibernate需要的jar包， hibernate3.jar ,lib/required下面所有jar包,还有slf4j-nop-1.5.8.jar
2 在数据库里创建表 create table student(id int primary key,name varchar(20),age int);
3 创建要保存的类Student
package com.archer.model;
public class Student {
int id;
String name;
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;
}
}
4 创建student.hbm.xml
<hibernate-mapping package="com.archer.model">

        <class name="Student"
            table="student"
            discriminator-value="S">
    <id name="id"></id>
                <property name="name"> </property>
                <property name="age"> </property>
        </class>

</hibernate-mapping>

5 创建hibernate.cfg.xml
<hibernate-configuration>
    <session-factory>
        <!-- properties -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/bbs</property>
        <property name="connection.username">root</property>
        <property name="connection.password">123456</property>

        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <property name="show_sql">true</property>

  
        <!-- mapping files -->

        <mapping resource="com/archer/model/Student.hbm.xml"/>
    </session-factory>
</hibernate-configuration>
6 运行之后检查数据库和后台打印