postdao.java

基于struts+hibernate的电子商务网站。可运行。数据库mysql

package tarena.dao;

import java.sql.Date;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;

import tarena.entity.Post;

/**
 * Data access object (DAO) for domain model class Post.
 * 
 * @see tarena.entity.Post
 * @author MyEclipse Persistence Tools
 */
@SuppressWarnings("unchecked")
public class PostDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(PostDAO.class);

	// property constants
	public static final String TITLE = "title";

	public static final String TRANSACTIONPOINT = "transactionpoint";

	public static final String READACCESS = "readaccess";

	public static final String ICON = "icon";

	public static final String CONTENT = "content";

	public static final String FORBIDEURL = "forbideurl";

	public static final String FORBIDESMILE = "forbidesmile";

	public static final String FORBIDEGERWEB = "forbidegerweb";

	public static final String USESIGN = "usesign";

	public static final String FLOOR = "floor";

	public void save(Post transientInstance) {		
		try {
			getSession().beginTransaction();
			getSession().save(transientInstance);
			getSession().getTransaction().commit();
		} catch (RuntimeException re) {
			
			throw re;
		}
	}

	public void delete(Post persistentInstance) {		
		try {
			getSession().beginTransaction();
			getSession().delete(persistentInstance);
			getSession().getTransaction().commit();
		} catch (RuntimeException re) {			
			throw re;
		}
	}

	public Post findById(java.lang.Integer id) {		
		try {
			Post instance = (Post) getSession().get("tarena.entity.Post", id);
			return instance;
		} catch (RuntimeException re) {			
			throw re;
		}
	}
	
	public List<Post> findByPropertyBetween(String propertyName,Date start,Date end){
		String hql = "from Post p where p."+propertyName+" between ? and ?";		
		return getSession()
			   .createQuery(hql)
			   .setParameter(0, start)
			   .setParameter(1, end)
			   .list();
	}
	
	public List<Post> findBySendTimeBetween(Date start,Date end){
		return findByPropertyBetween("sendtime", start, end);
	}
	
	public List findByExample(Post instance) {
		log.debug("finding Post instance by example");
		try {
			List results = getSession().createCriteria("tarena.entity.Post")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Post instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Post as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByTitle(Object title) {
		return findByProperty(TITLE, title);
	}

	public List findByTransactionpoint(Object transactionpoint) {
		return findByProperty(TRANSACTIONPOINT, transactionpoint);
	}

	public List findByReadaccess(Object readaccess) {
		return findByProperty(READACCESS, readaccess);
	}

	public List findByIcon(Object icon) {
		return findByProperty(ICON, icon);
	}

	public List findByContent(Object content) {
		return findByProperty(CONTENT, content);
	}

	public List findByForbideurl(Object forbideurl) {
		return findByProperty(FORBIDEURL, forbideurl);
	}

	public List findByForbidesmile(Object forbidesmile) {
		return findByProperty(FORBIDESMILE, forbidesmile);
	}

	public List findByForbidegerweb(Object forbidegerweb) {
		return findByProperty(FORBIDEGERWEB, forbidegerweb);
	}

	public List findByUsesign(Object usesign) {
		return findByProperty(USESIGN, usesign);
	}

	public List findByFloor(Object floor) {
		return findByProperty(FLOOR, floor);
	}

	public List findAll() {
		log.debug("finding all Post instances");
		try {
			String queryString = "from Post";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Post merge(Post detachedInstance) {
		log.debug("merging Post instance");
		try {
			Post result = (Post) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Post instance) {
		log.debug("attaching dirty Post instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Post instance) {
		log.debug("attaching clean Post instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}