基于java的简单BBS论坛

package xgong.bbs.com;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;

/**
 * Configures and provides access to Hibernate sessions tied to the
 * current thread of execution.  Follows the Thread Local Session
 * pattern see {@link http://hibernate.org/42.html }.
 */
public class HibernateSessionFactory {

    /** 
     * Location of hibernate.cfg.xml file.
     * Location should be on the classpath as Hibernate uses  
     * #resourceAsStream style lookup for its configuration file. 
     * The default classpath location of the hibernate config file is 
     * in the default package. Use #setConfigFile（） to update 
     * the location of the configuration file for the current session.   
     */
    private static String CONFIG_FILE_LOCATION = “/hibernate.cfg.xml“;
	private static final ThreadLocal threadLocal = new ThreadLocal（）;
    private  static Configuration configuration = new Configuration（）;    
    private static org.hibernate.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 HibernateSessionFactory（） {
    }
	
	/**
     * Returns the ThreadLocal Session instance.  Lazy initialize
     * the SessionFactory 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;
    }

	/**
     *  Rebuild hibernate session factory
     *
     */
	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
     *
     *	session factory 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       6886  2009-12-11 18:17  workspacebs.sql

     文件       1417  2009-10-30 15:07  workspacehcit_bbs.classpath

     文件        527  2009-09-12 13:26  workspacehcit_bbs.myhibernatedata

     文件        297  2009-11-12 16:15  workspacehcit_bbs.mymetadata

     文件        256  2009-09-11 14:14  workspacehcit_bbs.mystrutsdata

     文件       1511  2009-09-12 11:27  workspacehcit_bbs.project

     文件        121  2009-09-19 16:04  workspacehcit_bbs.settingscom.genuitec.eclipse.core.prefs

     文件        289  2009-09-12 13:22  workspacehcit_bbshibernate.reveng.xml

     文件         76  2009-09-25 10:45  workspacehcit_bbssrcfckeditor.properties

     文件        946  2009-09-12 13:26  workspacehcit_bbssrchibernate.cfg.xml

     文件       3331  2009-09-12 11:27  workspacehcit_bbssrcxgongbscomHibernateSessionFactory.java

     文件        761  2009-09-23 20:46  workspacehcit_bbssrcxgongbsdaoCardDao.java

     文件        731  2009-09-23 14:09  workspacehcit_bbssrcxgongbsdaoDBConnection.java

     文件       2532  2009-09-19 18:36  workspacehcit_bbssrcxgongbsdaoMysqlfenyeDao.java

     文件        244  2009-09-11 12:57  workspacehcit_bbssrcxgongbsdaoRestoreDao.java

     文件        541  2009-09-20 19:37  workspacehcit_bbssrcxgongbsdao itleDao.java

     文件        345  2009-09-17 12:31  workspacehcit_bbssrcxgongbsdaoUserDao.java

     文件       6127  2009-09-24 13:07  workspacehcit_bbssrcxgongbsimplCardDaoImpl.java

     文件       1513  2009-09-17 14:06  workspacehcit_bbssrcxgongbsimplRestoreDaoImpl.java

     文件       4323  2009-09-26 17:21  workspacehcit_bbssrcxgongbsimpl itleDaoImpl.java

     文件       3709  2009-09-29 13:28  workspacehcit_bbssrcxgongbsimplUserDaoImpl.java

     文件       1287  2009-09-12 13:26  workspacehcit_bbssrcxgongbsmodelCard.hbm.xml

     文件       2376  2009-09-20 15:14  workspacehcit_bbssrcxgongbsmodelCard.java

     文件        707  2009-09-09 13:27  workspacehcit_bbssrcxgongbsmodelRestore.java

     文件        324  2009-09-12 09:26  workspacehcit_bbssrcxgongbsmodel itle_1.java

     文件        485  2009-09-12 09:43  workspacehcit_bbssrcxgongbsmodel itle_2.java

     文件       2029  2009-09-17 14:55  workspacehcit_bbssrcxgongbsmodelUser.java

     文件       2051  2009-09-23 16:47  workspacehcit_bbssrcxgongbsstrutsactionCardAction.java

     文件       7574  2009-10-08 16:20  workspacehcit_bbssrcxgongbsstrutsactionUserAction.java

     文件         85  2009-09-11 14:14  workspacehcit_bbssrcxgongbsstrutsApplicationResources.properties

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