bookdao.java

网上购物系统 基于jsp实现 运行环境eclipse+My SQL+TomCat

package book.jsj0707.dao;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import book.jsj0707.entity.Book;

/**
 * A data access object (DAO) providing persistence and search support for Book
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see book.jsj0707.dao.Book
 * @author MyEclipse Persistence Tools
 */

public class BookDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(BookDAO.class);
	// property constants
	public static final String BOOKNAME = "bookname";
	public static final String AUTHOR = "author";
	public static final String IMG = "img";
	public static final String INTRODUCE = "introduce";
	public static final String PRICE = "price";
	public static final String ONHAND = "onhand";

	protected void initDao() {
		// do nothing
	}

	public List findwithCategoryPress()
	{
		//List list = session.createQuery
		//("select new Map(a.name as fristName, b.name as secondName, c.id as id 
		//from Order a, Customer b where ...").list();    
		log.debug("finding all Book instances");
		try {
			String queryString = "select a,b.categoryname,c.publishername " +
					"from Book as a,Category as b,Press as c " +
					"where a.category=b.categoryid " +
					"and a.press=c.publisherid";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
	public List findTypePress(java.lang.Long categoryid)
	{
		//List list = session.createQuery
		//("select new Map(a.name as fristName, b.name as secondName, c.id as id 
		//from Order a, Customer b where ...").list();    
		log.debug("finding all Book instances");
		try {
			String queryString = "select a,c.publishername " +
					"from Book as a,Press as c " +
					"where a.category="+categoryid+
					" and a.press=c.publisherid";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
	public List findPubCategory(java.lang.Long publisherid)
	{
		//List list = session.createQuery
		//("select new Map(a.name as fristName, b.name as secondName, c.id as id 
		//from Order a, Customer b where ...").list();    
		log.debug("finding all Book instances");
		try {
			String queryString = "select a,b.categoryname " +
					"from Book as a,Category as b " +
					"where a.press="+publisherid+
					" and a.category=b.categoryid";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
	public void save(Book transientInstance) {
		log.debug("saving Book instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Book persistentInstance) {
		log.debug("deleting Book instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Book findById(java.lang.Long id) {
		log.debug("getting Book instance with id: " + id);
		try {
			Book instance = (Book) getHibernateTemplate().get(
					"book.jsj0707.dao.Book", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Book instance) {
		log.debug("finding Book instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			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 Book instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Book as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByBookname(Object bookname) {
		return findByProperty(BOOKNAME, bookname);
	}

	public List findByAuthor(Object author) {
		return findByProperty(AUTHOR, author);
	}

	public List findByImg(Object img) {
		return findByProperty(IMG, img);
	}

	public List findByIntroduce(Object introduce) {
		return findByProperty(INTRODUCE, introduce);
	}

	public List findByPrice(Object price) {
		return findByProperty(PRICE, price);
	}

	public List findByOnhand(Object onhand) {
		return findByProperty(ONHAND, onhand);
	}

	public List findAll() {
		log.debug("finding all Book instances");
		try {
			String queryString = "from Book";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

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

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

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

	public static BookDAO getFromApplicationContext(ApplicationContext ctx) {
		return (BookDAO) ctx.getBean("BookDAO");
	}
}