Hibernate demo之使用注解

<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" ????????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ????????xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> ???<modelVersion>4.0.0</modelVersion> ???<groupId>testHibernateAnno</groupId> ???<artifactId>testHibernateAnno</artifactId> ???<version>1.0-SNAPSHOT</version> ???<dependencies> ???????<dependency> ???????????<groupId>junit</groupId> ???????????<artifactId>junit</artifactId> ???????????<version>3.8.1</version> ???????????<scope>test</scope> ???????</dependency> ???????<!-- 添加Hibernate依赖 --> ???????<dependency> ???????????<groupId>org.hibernate</groupId> ???????????<artifactId>hibernate-core</artifactId> ???????????<version>3.6.10.Final</version> ???????</dependency> ???????<!-- 添加Log4J依赖 --> ???????<dependency> ???????????<groupId>log4j</groupId> ???????????<artifactId>log4j</artifactId> ???????????<version>1.2.16</version> ???????</dependency> ???????<dependency> ???????????<groupId>org.slf4j</groupId> ???????????<artifactId>slf4j-nop</artifactId> ???????????<version>1.6.4</version> ???????</dependency> ???????<!-- 添加javassist --> ???????<dependency> ???????????<groupId>javassist</groupId> ???????????<artifactId>javassist</artifactId> ???????????<version>3.12.0.GA</version> ???????</dependency> ???????<!-- mysql数据库的驱动包 --> ???????<dependency> ???????????<groupId>mysql</groupId> ???????????<artifactId>mysql-connector-java</artifactId> ???????????<version>5.1.6</version> ???????</dependency> ???</dependencies></project>

<?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> ???????<!-- Database connection settings --> ???????<property name="connection.driver_class">org.gjt.mm.mysql.Driver</property> ???????<property name="connection.url">jdbc:mysql://192.168.32.95:3306/db2</property> ???????<property name="connection.username">DB_WX_APP</property> ???????<property name="connection.password">LH_longfor</property> ???????<!-- JDBC connection pool (use the built-in) --> ???????<property name="connection.pool_size">1</property> ???????<!-- SQL dialect --> ???????<property name="dialect">org.hibernate.dialect.MySQLDialect</property> ???????<!-- Enable Hibernate‘s automatic session context management --> ???????<property name="current_session_context_class">thread</property> ???????<!-- Disable the second-level cache ?--> ???????<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> ???????<!-- Echo all executed SQL to stdout --> ???????<property name="show_sql">true</property> ???????<property name="format_sql">true</property> ???????<!-- Drop and re-create the database schema on startup --> ???????<property name="hbm2ddl.auto">update</property> ???????<!--<mapping resource="mapper/Event.hbm.xml"/>--> ???</session-factory></hibernate-configuration>

package com.demo.demo;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.Id;import javax.persistence.Table;import java.util.Date; ?@Entity ?@Table(name="EVENTS")public class Event { ?????@Id ?????@Column(name = "EVENT_ID") ???private Long id;//id ?????@Column(name = "TITLE") ???private String title;//标题 ?????@Column(name = "EVENT_DATE") ???private Date date;//日期 ???public Long getId() { ???????return id; ???} ???public void setId(Long id) { ???????this.id = id; ???} ???public String getTitle() { ???????return title; ???} ???public void setTitle(String title) { ???????this.title = title; ???} ???public Date getDate() { ???????return date; ???} ???public void setDate(Date date) { ???????this.date = date; ???}}

package com.demo.demo;import java.util.List;import java.util.Date;import java.util.Iterator;import org.hibernate.HibernateException;import org.hibernate.Session;import org.hibernate.Transaction;import org.hibernate.cfg.AnnotationConfiguration;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;public class Test { ???private static SessionFactory factory; ???/** ????????* @param args ????????*/ ???????public static void main(String[] args) { ???????????// TODO Auto-generated method stub ???????????Test mgr = new Test(); ???????????try{ ???????????????factory = new AnnotationConfiguration(). ???????????????????????configure(). ???????????????????????//addPackage("com.xyz") //add package if used. ???????????????????????????????addAnnotatedClass(Event.class). ???????????????????????????????buildSessionFactory(); ???????????}catch (Throwable ex) { ???????????????System.err.println("Failed to create sessionFactory object." + ex); ???????????????throw new ExceptionInInitializerError(ex); ???????????} ???????????Event e=new Event(); ?????????e.setId(10011L); ?????????e.setTitle("aaa"); ?????????e.setDate(new Date()); ?????????Session sesion=factory.openSession(); ?????????sesion.beginTransaction(); ?????????sesion.save(e); ?????????sesion.getTransaction().commit(); ?????????System.out.println("OK"); ???????}}