学步园

Hibernate开发备用

 

平时做小测试用的，稍微修改一下就可以用到正式开发环境中。

 

 

一、配置文件

<?xml version='1.0' encoding='gb2312'?>

<!DOCTYPE hibernate-configuration PUBLIC

        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

        "[url]http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd[/url]">

<hibernate-configuration>

    <session-factory>

        <!--显示执行的SQL语句-->

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

        <!--连接字符串-->

        <property name="connection.url">

            jdbc:mysql://localhost:3306/testdb

        </property>

        <!--连接数据库的用户名-->

        <property name="connection.username">root</property>

        <!--数据库用户密码-->

        <property name="connection.password">leizhimin</property>

        <!--数据库驱动-->

        <property name="connection.driver_class">

            com.mysql.jdbc.Driver

        </property>

        <!--选择使用的方言-->

        <property name="dialect">

            org.hibernate.dialect.MySQLDialect

        </property>

        <!--设置Hibernate自动管理上下文的策略-->

        <property name="current_session_context_class">thread</property>

        <!--JDBC连接池（使用内置的连接池）-->

        <property name="connection.pool_size">1</property>

        <!--是否使用数据库外连接-->

        <!--<property name="hibernate.use_outer_join">true</property>-->

        <!--事务管理类型，这里使用JDBC Transaction-->

        <property name="hiberante.transaction.factory_class">

            org.hibernate.transaction.JDBCTransactionFactory

        </property>

        <!--在启动时删除并重新创建数据库-->

        <!--<property name="hbm2ddl.auto">create</property>-->

        <mapping resource="org/lavasoft/domain/zvfims/reg/user/entity/TUser.hbm.xml"/>

        <mapping resource="org/lavasoft/domain/zvfims/reg/user/entity/TTest.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

 

 

二、HibernateUtil.java

package org.lavasoft.domain.common;

import org.hibernate.Session;

import org.hibernate.HibernateException;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.Configuration;

/**

 * Created by IntelliJ IDEA.

 * User: leizhimin

 * Date: 2007-7-18

 * Time: 10:18:44

 * Hibernate工具类

 */

public class HibernateUtil {

    private static String CONFIG_FILE_LOCATION = "hibernate.cfg.xml";

    private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();

    private static Configuration configuration = new Configuration();

    private static SessionFactory sessionFactory;

    private static String configFile = CONFIG_FILE_LOCATION;

    static {

        try {

            configuration.configure(configFile);

            sessionFactory = configuration.buildSessionFactory();

        } catch (Exception e) {

            System.err.println("%%%% Error Creating SessionFactory %%%%");

            e.printStackTrace();

        }

    }

    private HibernateUtil() {

    }

    /**

     * Returns the ThreadLocal Session instance.  Lazy initialize

     * the <code>SessionFactory</code> if needed.

     *

     * @return Session

     * @throws HibernateException

     */

    public static Session getSession() throws HibernateException {

        Session session = (Session) threadLocal.get();

        if (session == null || !session.isOpen()) {

            if (sessionFactory == null) {

                rebuildSessionFactory();

            }

            session = (sessionFactory != null) ? sessionFactory.openSession() : null;

            threadLocal.set(session);

        }

        return session;

    }

    /**

     * 重新构建SessionFactory

     */

    public static void rebuildSessionFactory() {

        try {

            configuration.configure(configFile);

            sessionFactory = configuration.buildSessionFactory();

        } catch (Exception e) {

            System.err.println("%%%% Error Creating SessionFactory %%%%");

            e.printStackTrace();

        }

    }

    /**

     * Close the single hibernate session instance.

     *

     * @throws HibernateException

     */

    public static void closeSession() throws HibernateException {

        Session session = (Session) threadLocal.get();

        threadLocal.set(null);

        if (session != null) {

            session.close();

        }

    }

    /**

     * return session factory

     */

    public static org.hibernate.SessionFactory getSessionFactory() {

        return sessionFactory;

    }

    /**

     * return session factory

     * <p/>

     * session factory will be rebuilded in the next call

     */

    public static void setConfigFile(String configFile) {

        HibernateUtil.configFile = configFile;

        sessionFactory = null;

    }

    /**

     * return hibernate configuration

     */

    public static Configuration getConfiguration() {

        return configuration;

    }

}

 

 

三、xdoclet-build.xml

<?xml version="1.0" encoding="gb2312"?>

<project name="xdoclet-build" default="xdoclet" basedir=".">

    <property name="project.lib.dir" value="${basedir}/lib"/>

    <property name="xdoclet.lib.dir" value="${project.lib.dir}/xdoclet"/>

    <property name="project.src.dir" value="${basedir}/src"/>

    <property name="project.sql.dir" value="${basedir}/doc/dbscript"/>

    <property name="project.resources.dir" value="${basedir}/doc/res"/>

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

    <property name="hibernate.cfg.driver" value="com.mysql.jdbc.Driver"/>

    <property name="hibernate.cfg.username" value="root"/>

    <property name="hibernate.cfg.password" value="leizhimin"/>

    <property name="hibernate.cfg.jdbcurl" value="jdbc:mysql://localhost:3306/testdb"/>

    <property name="hibernate.cfg.showsql" value="true"/>

    <property name="module.name" value="doc"/>

    <target name="xdoclet">

        <path id="xdoclet.task.classpath">

            <fileset dir="${xdoclet.lib.dir}">

                <include name="**/*.jar"/>

            </fileset>

            <fileset dir="${project.lib.dir}">

                <include name="**/*.jar"/>

            </fileset>

        </path>

        <taskdef name="hibernatedoclet"

            classname="xdoclet.modules.hibernate.HibernateDocletTask"

            classpathref="xdoclet.task.classpath"/>

    </target>

    <target name="generate-mapping" depends="xdoclet">

        <hibernatedoclet destdir="${project.src.dir}" verbose="true" force="false">

            <fileset dir="${project.src.dir}">

                <include name="**/domain/**/*.java"/>

            </fileset>

            <hibernate version="3.0" xmlencoding="gb2312"/>

        </hibernatedoclet>

    </target>

    <target name="generate-configuration" depends="xdoclet">

        <hibernatedoclet destdir="${project.resources.dir}" verbose="true"

            force="true">

            <fileset dir="${project.src.dir}">

                <include name="**/entity/*.java"/>

            </fileset>

            <hibernatecfg destinationFile="${project.resources.dir}/hibernate.cfg.xml"

                dialect="${hibernate.cfg.dialect}"

                driver="${hibernate.cfg.driver}"

                username="${hibernate.cfg.username}"

                password="${hibernate.cfg.password}"

                jdbcurl="${hibernate.cfg.jdbcurl}"

                showsql="${hibernate.cfg.showsql}"

                destdir="${project.resources.dir}" xmlencoding="gb2312"/>

        </hibernatedoclet>

    </target>

    <target name="generate-schema" depends="xdoclet">

        <taskdef name="schemaexport"

            classname="org.hibernate.tool.hbm2ddl.SchemaExportTask"

            classpathref="xdoclet.task.classpath"/>

        <property name="hibernate.dialect" value="${hibernate.cfg.dialect}"/>

        <property name="hibernate.format_sql" value="true"/>

        <property name="hibernate.use_sql_comments true" value="true"/>

        <schemaexport quiet="no" text="yes" drop="no" delimiter=";"

            output="${project.sql.dir}/hb_test1.sql">

            <fileset dir="${project.src.dir}">

                <include name="**/domain/**/*.hbm.xml"/>

            </fileset>

        </schemaexport>

    </target>

    <target name="generate-schema-all" depends="xdoclet">

        <taskdef name="schemaexport"

            classname="org.hibernate.tool.hbm2ddl.SchemaExportTask"

            classpathref="xdoclet.task.classpath"/>

        <property name="hibernate.dialect" value="${hibernate.cfg.dialect}"/>

        <property name="hibernate.format_sql" value="true"/>

        <property name="hibernate.use_sql_comments true" value="true"/>

        <schemaexport quiet="no" text="yes" drop="no" delimiter=";"

            output="${project.sql.dir}/hb_test2.sql">

            <fileset dir="${project.src.dir}">

                <include name="**/domain/**/*.hbm.xml"/>

            </fileset>

        </schemaexport>

    </target>

</project>