网上书店前后台系统， 毕业设计。.zip

package cn.hbook.dao.impl; import java.sql.SQLException; import java.util.ArrayList; import java.util.Date; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import org.hibernate.HibernateException; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.cfg.Configuration; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.orm.hibernate3.HibernateCallback; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import org.springframework.transaction.annotation.Transactional; import cn.hbook.bean.TBook; import cn.hbook.dao.IBookDao; import cn.hbook.form.QueryBookInfo; @Transactional public class BookDaoImpl extends HibernateDaoSupport implements IBookDao { private int pageSize = 8; private int currentPage = 1; //添加书籍 public boolean save(TBook book) throws Exception { System.out.println("dao - svae book"); //this.getSession().clear(); this.getHibernateTemplate().merge(book); //这样可以在添加书的时候同时更新他的作者 return true; } //删除书籍 public boolean delete(TBook book) throws Exception { this.getHibernateTemplate().delete(book); return true; } //批量删除 public boolean deleteAll(List<String> ids) throws Exception { Set<TBook> delBooks = new HashSet<TBook>(); for (String id : ids) { delBooks.add(new TBook(Integer.parseInt(id.trim()))); } this.getHibernateTemplate().deleteAll(delBooks); return true; } //更新书籍信息 public boolean update(TBook book) throws Exception { this.getHibernateTemplate().merge(book); return true; } //根据id查询数据 public TBook queryById(Integer bookid) throws Exception { TBook book = this.getHibernateTemplate().get(TBook.class, bookid); return book; } //根据ISBN查找书籍 public TBook queryBookByIsbn(String isbn) throws Exception { @SuppressWarnings("unchecked") List<TBook> books = this.getHibernateTemplate().find("from TBook b where b.isbn = ? ", isbn); if (null != books && books.size() > 0) { return books.get(0); } return null; } //查询所有书籍 @SuppressWarnings("unchecked") public List<TBook> queryBooks() throws Exception { List<TBook> books = this.getHibernateTemplate().find("from TBook"); return books; } //根据类型查找书籍 @SuppressWarnings("unchecked") public List<TBook> queryBooksByCategory(QueryBookInfo queryBookInfo) throws Exception { final Integer type = queryBookInfo.getType(); //分段查询 final Date beginDate = queryBookInfo.getBeginDate(); //出版时间段 final Date endDate = queryBookInfo.getEndDate(); final Double beginPrice = queryBookInfo.getBeginPrice(); //价格段查询 final Double endPrice = queryBookInfo.getEndPrice(); final Integer beginGrade = queryBookInfo.getBeginGrade(); // 按客户评分 final Integer endGrade = queryBookInfo.getEndGrade(); final Double beginDiscount = queryBookInfo.getBeginDiscount(); //按折扣查 final Double endDiscount = queryBookInfo.getEndDiscount(); final Integer beginStockNum = queryBookInfo.getBeginStockNum(); //库存量 final Integer endStockNum = queryBookInfo.getEndStockNum(); //排序条件 final String orderByPrice = queryBookInfo.getOrderByPrice(); //价格排序 final String orderByDate = queryBookInfo.getOrderByDate(); //时间排序 final String orderBySaleNum = queryBookInfo.getOrderBySaleNum(); //销量排序 final String orderByGrade = queryBookInfo.getOrderByGrade(); //按用户评分 final String orderByDiscount = queryBookInfo.getOrderByDiscount(); //按折扣 List<TBook> books = this.getHibernateTemplate().execute( new HibernateCallback() { public Object doInHibernate(Session s) throws HibernateException, SQLException { //HQL语句 StringBuilder hql = new StringBuilder(" select distinct b from TBook b join b.TAuthors a where 1 = 1 and (b.type = ? or b.ftype = ? ) "); // 查询结果 List<TBook> books = new ArrayList<TBook>(); //存放查询参数 List<Object> params = new ArrayList<Object>(); params.add(type); params.add(type); //首先将参数几放入 //动态的拼接hql语句 //时间段 if (beginDate != null) { hql.append(" and b.publishDate >= ? "); params.add(beginDate); } if (endDate != null) { hql.append(" and b.publishDate <= ? "); params.add(endDate); } //价格段 if (beginPrice != null) { hql.append(" and b.hbPrice >= ? "); params.add(beginPrice); } if (endPrice != null) { hql.append(" and b.hbPrice <= ? "); params.add(endPrice); } //评分段 if(beginGrade != null) { hql.append(" and b.grade >= ? "); params.add(beginGrade); } if (endGrade != null) { hql.append(" and b.grade <= ? "); params.add(endGrade); } //折扣段 if (beginDiscount != null) { hql.append(" and b.discount >= ? "); params.add(beginDiscount); } if (endDiscount != null) { hql.append(" and b.discount <= ? "); params.add(endDiscount); } //库存量 if (beginStockNum != null) { hql.append(" and b.stockNum >= ? "); params.add(beginStockNum); } if (endStockNum != null) { hql.append(" and b.stockNum <= ? "); params.add(endStockNum); } //是否已经有order boolean isOrder = false; //按价格排序 if (orderByPrice != null) { if (!isOrder) hql.append(" order by "); if (orderByPrice.equals("1")) { hql.append(" b.hbPrice asc , "); } else { hql.append(" b.hbPrice desc , "); } isOrder = true; } //时间排序 if (orderByDate != null) { if (!isOrder) hql.append(" order by "); if (orderByDate.equals("1")) { hql.append(" b.publishDate asc , "); } else { hql.append(" b.publishDate desc , "); } isOrder = true; } //销量排序 if (orderBySaleNum != null) { if (!isOrder) hql.append(" order by "); if (orderBySaleNum.equals("1")) { hql.append(" b.saleNum asc , "); } else { hql.append(" b.saleNum desc , "); } isOrder = true; } //按评分排序 if (orderByGrade != null) { if (!isOrder) hql.append(" order by "); if (orderByGrade.equals("1")) { hql.append(" b.grade asc , "); } else { hql.append(" b.grade desc, "); } isOrder = true; } //按折扣查询 if (orderByDiscount != null) { if (!isOrder) hql.append(" order by "); if (orderByDiscount.equals("1")) { hql.append(" b.discount asc , "); } else { hql.append(" b.discount desc , "); } isOrder = true; } //去掉最后边的"," String result = ""; if (isOrder == true) { result = hql.substring(0, hql.length() - 1); } else { result = hql.toString(); } //设置查询参数 System.out.println("Category dao hql = " + hql ); Query q = s.createQuery(result); for (int i = 0; i < params.size(); ++i) { q.setParameter(i, params.get(i)); System.out.println("参数 " + i + " = " + params.get(i)); } // 设置页面 q.setFirstResult((currentPage - 1) * pageSize); q.setMaxResults(pageSize); books = q.list(); return books; } } ); return books; } //按时间排续 查出新书 @SuppressWarnings("unchecked") public List<TBook> queryBooksOrderByDate(QueryBookInfo queryBookInfo) throws Exception{ //没有目的性的查询不用枚举细节信息 //分段查询 final Date beginD