hibernate添加数据入门小案例

 1 package com.LHB.domain; 2 ?3 import java.util.Date; 4 ?5 public class Employee { 6 ?7 ????private Integer id; 8 ????private String name; 9 ????private String email;10 ????private Date hiredate;11 ????public Integer getId() {12 ????????return id;13 ????}14 ????public void setId(Integer id) {15 ????????this.id = id;16 ????}17 ????public String getName() {18 ????????return name;19 ????}20 ????public void setName(String name) {21 ????????this.name = name;22 ????}23 ????public String getEmail() {24 ????????return email;25 ????}26 ????public void setEmail(String email) {27 ????????this.email = email;28 ????}29 ????public Date getHiredate() {30 ????????return hiredate;31 ????}32 ????public void setHiredate(Date hiredate) {33 ????????this.hiredate = hiredate;34 ????}35 ????36 }

 1 <?xml version="1.0" encoding="utf-8"?> 2 <!-- 映射文件通过DTD来指定格式 --> 3 <!DOCTYPE hibernate-mapping PUBLIC ?4 ????"-//Hibernate/Hibernate Mapping DTD 3.0//EN" 5 ????"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 6 <!-- 该文件用于配置domain对象和表的映射关系 --> 7 <hibernate-mapping package="com.LHB.domain"> 8 ????<class name="Employee" table="employee" > 9 ????????<!-- id元素用于指定主键属性 -->10 ????????<id name="id" column="id" type="java.lang.Integer">11 ????????????<!-- 该元素用来指定主键生成的策略hilo native increment sequence uuid -->12 ????????????<generator class="sequence">13 ????????????????<param name="sequence">emp_seq</param>14 ????????????</generator>15 ????????</id>16 ????????17 ????????<!-- 对其它属性还要配置 -->18 ????????<property name="name" type="java.long.String">19 ????????????<column name="name" not-null="false" ?/>20 ????????</property>21 ????????<property name="emial" type="java.long.String">22 ????????????<column name="emial" not-null="false" />23 ????????</property>24 ????????<property name="hiredate" type="java.util.Date">25 ????????????<column name="hiredate" not-null="false" />26 ????????</property>27 ????</class>28 ????29 30 </hibernate-mapping>

 1 <?xml version="1.0" encoding="utf-8"?> 2 <!DOCTYPE hibernate-configuration PUBLIC 3 ????"-//Hibernate/Hibernate Configuration DTD 3.0//EN" 4 ????"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 5 ?6 <hibernate-configuration> 7 ????<session-factory> 8 ????????<!-- 配置使用的driver --> 9 ????????<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>10 ????????<property name="connection.username">scott</property>11 ????????<property name="connection.password">tiger</property>12 ????????<property name="connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>13 ????????<!-- 配置dialect方言，明确告诉hibernate连接哪种数据库 -->14 ????????<property name="dialect">org.hibernate.dialect.OracleDialect</property>15 ????????<!-- 显示出对应的sql语句 -->16 ????????<property name="show_sql">true</property>17 ????????<!-- 指定管理的对象映射文件 -->18 ????????<mapping resource="com/LHB/domain/Employee.hbm.xml"/>19 ????????20 ????</session-factory>21 </hibernate-configuration>

 1 package com.LHB.view; 2 ?3 import java.util.Date; 4 ?5 import org.hibernate.SessionFactory; 6 import org.hibernate.Transaction; 7 import org.hibernate.cfg.Configuration; 8 import org.hibernate.classic.Session; 9 10 import com.LHB.domain.Employee;11 12 public class TestMain {13 14 ????public static void main(String[] args) {15 ????????// TODO Auto-generated method stub16 17 ????????//使用hibernate完成crud操作18 ????????//现在不使用service，直接测试19 ????????//1.创建Configuration,该对象用于读取hibernate.cfg.xml并完成初始化20 ????????Configuration configuration = new Configuration().configure();21 ????????//2.创建SessionFactory【这是一个会话工厂，是一个重量级的对象】22 ????????SessionFactory sessionFactory = configuration.buildSessionFactory();23 ????????//3.创建Session,相当于jdbc中的Connection24 ????????Session ?session = sessionFactory.openSession();25 ????????//4.对于hibernate，要求在进行增加，删除，修改的时候使用事物提交26 ????????Transaction transaction = session.beginTransaction();27 ????????28 ????????//添加一个雇员29 ????????Employee employee = new Employee();30 ????????employee.setName("zhangsan");31 ????????employee.setEmail("zhangsan@126.com");32 ????????employee.setHiredate(new Date());33 ????????34 ????????//保存35 ????????session.save(employee);//相当于insert into....[被hibernate封装]36 ????????37 ????????session.close();38 ????????39 ????}40 41 }