服务端/course_mgmt/src/com/common/dao/impl/BaseDAO.java

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package com.common.dao.impl;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.util.Assert;

public class BaseDAO extends HibernateDaoSupport {
	public static final Log log = LogFactory.getLog(BaseDAO.class);

	/**
	 * 保存实体
	 * 
	 * @param entity
	 */
	public boolean save(Object entity) {
		try {
			this.getHibernateTemplate().save(entity);
		} catch (Exception e) {
			e.printStackTrace();
			log.info("save " + entity.getClass().getName() + " is failed!");
			return false;
		}
		return true;
	}

	/**
	 * 保存或更新某个实例
	 * 
	 * @param entity
	 */
	public boolean saveOrUpdate(Object entity) {
		try {
			this.getHibernateTemplate().saveOrUpdate(entity);
		} catch (Exception e) {
			e.printStackTrace();
			log.info("saveOrUpdate " + entity.getClass().getName()
					+ " is failed!");
			return false;
		}
		return true;
	}

	/**
	 * Merge某个实例
	 * 
	 * @param entity