basedaohibernate.java

自己写的一个struts+spring+hibernate测试程序

/*
 * Created on 2006-2-17
 */
package com.base;

import java.io.Serializable;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.orm.ObjectRetrievalFailureException;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: </p>
 * @author czl
 * @version 1.0
 */
public class BaseDAOHibernate extends HibernateDaoSupport implements BaseDAO {
    protected final Log log = LogFactory.getLog(getClass());

    public void saveObject(Object o) {
    	
        getHibernateTemplate().saveOrUpdate(o); 
    }

    public Object getObject(Class clazz, Serializable id) {
        Object o = getHibernateTemplate().get(clazz, id);

        if (o == null) {
            throw new ObjectRetrievalFailureException(clazz, id);
        }

        return o;
    }

    public List getObjects(Class clazz) {
        return getHibernateTemplate().loadAll(clazz);
    }

    public void removeObject(Class clazz, Serializable id) {
        getHibernateTemplate().delete(getObject(clazz, id));
    }
    /**
     * 得到对象通过hql语句
     * @param sql
     * @param params
     * @return
     */
    public Object getObject(String sql,Object[] params)
    {
    	List resultList=getHibernateTemplate().find(sql, params);
    	if(resultList!=null&&resultList.size()==1)
    	{
    		return resultList.get(0);
    	}
    	return null;
    }
}