import java.util.Date;import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;@Entity
@Table(name="user_info")
public class User {private Integer userId;private String userName;private String telNumber;private Date registerDate;@Id@GeneratedValue(strategy=GenerationType.IDENTITY)public Integer getUserId() {return userId;}public void setUserId(Integer userId) {this.userId = userId;}public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}public String getTelNumber() {return telNumber;}public void setTelNumber(String telNumber) {this.telNumber = telNumber;}@Temporal(TemporalType.TIMESTAMP)@Column(name="registerDate")public Date getRegisterDate() {return registerDate;}public void setRegisterDate(Date registerDate) {this.registerDate = registerDate;}}

<?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><!-- 连接数据库的信息 --><property name="connection.driver_class">com.mysql.jdbc.Driver</property><property name="connection.url">jdbc:mysql://localhost/huan</property><property name="connection.username">root</property><property name="connection.password">root</property><!-- 连接池管理策略 --><!-- 最大连接数 --><property name="hibernate.c3p0.max_size">100</property><!-- 最小连接数 --><property name="hibernate.c3p0.min_size">10</property><!-- 获得连接的超时时间,如果超过这个时间,会抛出异常，单位毫秒 --><property name="hibernate.c3p0.timeout">5000</property><!-- 最大的PreparedStatement的数量 --><property name="hibernate.c3p0.max_statements">100</property><property name="hibernate.c3p0.idle_test_period">300</property><property name="hibernate.c3p0.acquire_increment">2</property><property name="hibernate.c3p0.validate">true</property><!-- 数据库的方言 --><property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>        <!-- 根据需要自动创建表 如果表存在不新建表，只操作数据 --><property name="hbm2ddl.auto">update</property><!-- 打印sql --><property name="show_sql">true</property><!-- 格式化打印的sql --><property name="hibernate.format_sql">true</property><!-- 罗列持久化的类名 --><mapping class="com.huan.entity.User"/></session-factory>
</hibernate-configuration>

import java.util.Date;import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;import com.huan.entity.User;public class HibernateBasicUseTest {private SessionFactory sessionFactory;@Beforepublic void setUp() {//解析配置文件 默认去加载hibernate.cfg.xmlConfiguration config = new Configuration().configure();//创建SessionFactory实例sessionFactory = config.buildSessionFactory();}@Afterpublic void tearDown(){sessionFactory.close();}@Testpublic void testHibernateBasicUse(){//创建SessionSession session = sessionFactory.openSession();//开启事务Transaction tx = session.beginTransaction();//操作持久化对象User user =  new User();user.setRegisterDate(new Date());user.setTelNumber("15678986774");user.setUserName("aha");//保存
        session.save(user);//事务提交
        tx.commit();//关闭Session
        session.close();}}