纯Hibernate使用-不用spring事务管理
package com.t.common.hibernate;import java.io.Serializable;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;public final class HibernateUtil {private static SessionFactory sessionFactory;private static ThreadLocal session = new ThreadLocal();public HibernateUtil(){}static {Configuration cfg = new Configuration();cfg.configure("hibernate.common.xml");sessionFactory = cfg.buildSessionFactory();}public static Session getThreadLocalSession(){Session s = (Session) session.get();if(s==null){s=getSession();session.set(s);}return s;}public static void closeSession(){Session s = (Session)session.get();if(s!=null){s.close();session.set(null);}}public static SessionFactory getSessionFactory(){return sessionFactory;}public static Session getSession(){return sessionFactory.openSession();}//增删改查//当需要事务一致性的时候，需要回滚，比如商品系统/* * public static void add(Object entity){Session s =null;Transaction tx = null;try {s = HibernateUtil.getSession();tx = s.beginTransaction();s.save(entity);tx.commit();} catch (HibernateException e) { if(tx != null){ tx.rollback(); } throw e; }finally {if(s!=null){s.close();}}} */public static void add(Object entity){Session s =null;Transaction tx = null;try {s = HibernateUtil.getSession();tx = s.beginTransaction();s.save(entity);tx.commit();} finally {if(s!=null){s.close();}}}public static void delete(Object entity){Session s =null;Transaction tx = null;try {s = HibernateUtil.getSession();tx = s.beginTransaction();s.delete(entity);tx.commit();} finally {if(s!=null){s.close();}}}public static Object get(Class clazz, Serializable id){Session s =null;try {s = HibernateUtil.getSession();Object obj = s.get(clazz, id);return obj;} finally {if(s!=null){s.close();}}}}
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<?xml version="1.0" encoding="utf-8"?><!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory><property name="hibernate.bytecode.use_reflection_optimizer">false</property><property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property><property name="connection.url">jdbc:oracle:thin:@127.0.0.1:1521:orcl</property><property name="connection.username">baike</property><property name="connection.password">baike</property><property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property><property name="hibernate.search.autoregister_listeners">false</property><property name="hibernate.show_sql">true</property><!-- 映射类 --><mapping name="code">package com.t.common.hibernate;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.SequenceGenerator;import javax.persistence.Table;@Entity@Table(name="T_USER")public class BaikeUser {private Long id ; private String username;private String password;@Id@SequenceGenerator(name="generator",allocationSize=1,initialValue=1,sequenceName="SEQ_USER_ID")@GeneratedValue(strategy=GenerationType.SEQUENCE,generator="generator")@Column(name="ID")public Long getId() {return id;}@Column(name="username")public String getUsername() {return username;}@Column(name="password")public String getPassword() {return password;}public void setId(Long id) {this.id = id;}public void setUsername(String username) {this.username = username;}public void setPassword(String password) {this.password = password;}}?
package com.t.common.hibernate;public class TestUSer {public static void main(String[] args) {BaikeUser user = new BaikeUser();user.setId(1L);user.setUsername("cjp1989");user.setPassword("12345");HibernateUtil.add(user);}}?
? ?1.注意事项：xml配置文件可以自定义的，但是<session-factory> 单独使用时，没有name属性
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