hibernate 的基础类查询

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.MatchMode;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Property;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.HibernateTemplate;

public class BaseHibernate {
	private static HibernateTemplate hibernateTemplate;

	@SuppressWarnings("static-access")
	public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
		this.hibernateTemplate = hibernateTemplate;
	}

	/**
	 * 插入对象
	 * 
	 * @param entity
	 * @return
	 */
	public int save(Object entity) {
		return (Integer) hibernateTemplate.save(entity);
	}

	/**
	 * 删除对象
	 * 
	 * @param entity
	 */
	public void delete(Object entity) {
		hibernateTemplate.delete(entity);
	}

	/**
	 * 修改对象
	 * 
	 * @param entity
	 */
	public void update(Object entity) {
		hibernateTemplate.update(entity);
	}

	/**
	 * 根据ID查询对象
	 * 
	 * @param entityClass
	 *            类名,如:String.class
	 * @param id
	 *            ID值
	 */
	public <T> T query(Class<T> entityClass, int id) {
		return hibernateTemplate.get(entityClass, id);
	}

	/**
	 * 查询全部
	 * 
	 * @param className
	 *            类名
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public <T> List<T> queryAll(Class<?> className) {
		return hibernateTemplate.find("from " + className.getName());
	}

	/**
	 * 分页
	 * 
	 * @param entityClass
	 *            类名
	 * @param index
	 *            当前页数
	 * @param size
	 *            每页显示的大小
	 * @param order
	 *            排序类型
	 * @param propertyName
	 *            要排序的属性名
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public <T> List<T> paging(final Class<?> entityClass, final int index,
			final int size, final Order order, final String... propertyName) {
		List<T> list = hibernateTemplate.executeFind(new HibernateCallback() {
			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				Criteria criteria = session.createCriteria(entityClass);
				if (propertyName != null && propertyName.length > 0) {
					switch (order) {
					case ASC:
						criteria.addOrder(org.hibernate.criterion.Order
								.asc(propertyName[0]));
						break;
					case DESC:
						criteria.addOrder(org.hibernate.criterion.Order
								.desc(propertyName[0]));
						break;
					}
				}
				criteria.setFirstResult((index - 1) * size);
				criteria.setMaxResults(size);
				return criteria.list();
			}
		});
		return list;
	}

	@SuppressWarnings("unchecked")
	public long getSumRecord(final Class<?> className) {
		List<Long> count = new ArrayList<Long>();
		count = hibernateTemplate.find("select COUNT(*) from "
				+ className.getName());
		return count.size() > 0 ? (count.get(0)) : 0L;
	}

	/**
	 * 获取总页数
	 * 
	 * @param className
	 *            类名
	 * @param size
	 *            每页显示的大小
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public long sumPage(final Class<?> className, int size) {
		List<Long> count = new ArrayList<Long>();
		count = hibernateTemplate.find("select COUNT(*) from "
				+ className.getName());
		return count.size() > 0 ? (count.get(0) - 1 + size) / size : 0L;
	}

	/**
	 * 根据字段查询
	 * 
	 * @param params
	 *            字段列表
	 * @param values
	 *            值列表
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public <T> List<T> queryByProperty(final Class<?> className,
			final Map<String, Object> params) {
		return hibernateTemplate.executeFind(new HibernateCallback() {
			public List<?> doInHibernate(Session session)
					throws HibernateException, SQLException {
				Criteria criteria = session.createCriteria(className);
				for (String field : params.keySet())
					criteria.add(Property.forName(field).eq(params.get(field)));
				return criteria.list();
			}
		});
	}

	/**
	 * 根据字段查询可以分的页数
	 * 
	 * @param className
	 *            要查询的实体类
	 * @param params
	 *            属性列表
	 * @param size
	 *            每页显示的大小
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public long queryByPropertyGetSumPage(final Class<?> className,
			final Map<String, Object> params, final int size) {
		List<Integer> object = hibernateTemplate
				.executeFind(new HibernateCallback() {
					public Object doInHibernate(Session session)
							throws HibernateException, SQLException {
						Criteria criteria = session.createCriteria(className);
						for (String field : params.keySet())
							criteria.add(Property.forName(field).eq(
									params.get(field)));
						criteria.setProjection(Projections.rowCount());
						return criteria.list();
					}
				});
		int count = object == null ? 0 : object.get(0);
		return count > 0 ? (count + size - 1) / size : 0L;
	}

	/**
	 * 获取总记录数根据属性
	 * 
	 * @param className
	 * @param params
	 * @param size
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public long queryByPropertyGetSumRecord(final Class<?> className,
			final Map<String, Object> params) {
		List<Integer> object = hibernateTemplate
				.executeFind(new HibernateCallback() {
					public Object doInHibernate(Session session)
							throws HibernateException, SQLException {
						Criteria criteria = session.createCriteria(className);
						for (String field : params.keySet())
							criteria.add(Property.forName(field).eq(
									params.get(field)));
						criteria.setProjection(Projections.rowCount());
						return criteria.list();
					}
				});
		return object == null ? 0 : object.get(0);
	}

	/**
	 * 根据字段查询并分页显示
	 * 
	 * @param className
	 *            要分页的实体类
	 * @param params
	 *            字段列表
	 * @param index
	 *            当前页
	 * @param size
	 *            每页显示的大小
	 * @param order
	 *            排序
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public <T> List<T> queryByPropertyPaging(final Class<?> className,
			final Map<String, Object> params, final int index, final int size,
			final Order order, final String... field) {
		return hibernateTemplate.executeFind(new HibernateCallback() {
			public List<?> doInHibernate(Session session)
					throws HibernateException, SQLException {
				Criteria criteria = session.createCriteria(className);
				for (String f : params.keySet())
					criteria.add(Property.forName(f).eq(params.get(f)));
				if (field != null && field.length != 0) {
					switch (order) {
					case ASC:
						criteria.addOrder(org.hibernate.criterion.Order
								.asc(field[0]));
						break;
					case DESC:
						criteria.addOrder(org.hibernate.criterion.Order
								.desc(field[0]));
						break;
					}
				}
				criteria.setFirstResult((index - 1) * size);
				criteria.setMaxResults(size);
				return criteria.list();
			}
		});
	}

	/**
	 * 保存或更新对象
	 * 
	 * @param entity
	 *            对象
	 */
	public void saveOrUpdate(Object entity) {
		hibernateTemplate.saveOrUpdate(entity);
	}

	/**
	 * 批量修改
	 * 
	 * @param queryString
	 *            HQL语句
	 * @return 受影响行数
	 */
	public int bulkUpdate(String queryString) {
		return hibernateTemplate.bulkUpdate(queryString);
	}

	/**
	 * 批量修改
	 * 
	 * @param queryString
	 *            HQL语句
	 * @param values
	 *            参数的值
	 * @return 受影响行数
	 */
	public int bulkUpdate(String queryString, Object... values) {
		return hibernateTemplate.bulkUpdate(queryString, values);
	}

	/**
	 * 批量删除
	 * 
	 * @param collection
	 *            要删除的集合
	 */
	public void deleteAll(Collection<?> collection) {
		hibernateTemplate.deleteAll(collection);
	}

	/**
	 * 模糊查询
	 * 
	 * @param className
	 *            类名
	 * @param field
	 *            字段名
	 * @param value
	 *            值
	 * @param matchMode
	 *            匹配模式:ANYWHERE->任意位置、END->结束、START->开始、EXACT->精确匹配
	 */
	@SuppressWarnings("unchecked")
	public <T> List<T> Querylike(final Class<?> className, final String field,
			final String value, final MatchMode matchMode) {
		List objects = new ArrayList<Object>();
		objects = hibernateTemplate.executeFind(new HibernateCallback() {
			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				Criteria criteria = session.createCriteria(className);
				criteria.add(Property.forName(field).like(value, matchMode));
				return criteria.list();
			}
		});
		return objects;
	}

	/**
	 * 执行hql查询语句
	 * 
	 * @param hql
	 *            hql语句
	 * @param values
	 *            值列表
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public <T> Object executeQuery(final String hql, final Object... values) {
		return hibernateTemplate.execute(new HibernateCallback() {

			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				Query query = session.createQuery(hql);
				setParams(query, values);
				return query.list();
			}
		});
	}

	/**
	 * 查询单个值
	 * 
	 * @param hql
	 *            hql语句
	 * @param values
	 *            参数列表
	 * @return 返回单个值
	 */
	@SuppressWarnings("unchecked")
	public <T> Object executeSacale(final String hql, final Object... values) {
		return hibernateTemplate.execute(new HibernateCallback() {
			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				Query query = session.createQuery(hql);
				setParams(query, values);
				query.setMaxResults(1);
				return query.uniqueResult();
			}
		});
	}

	/**
	 * 执行hql删除、修改语句
	 * 
	 * @param hql
	 *            hql语句
	 * @param values
	 *            值列表
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public int executNonQuery(final String hql, final Object... values) {
		return hibernateTemplate.execute(new HibernateCallback() {
			public Integer doInHibernate(Session session)
					throws HibernateException, SQLException {
				Query query = session.createQuery(hql);
				setParams(query, values);
				return query.executeUpdate();
			}
		});
	}

	/**
	 * 删除表数据
	 * @param tableName 表名
	 */
	
	@SuppressWarnings("unchecked")
	public void truncate(final String tableName) {
		hibernateTemplate.execute(new HibernateCallback() {
			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				session.createSQLQuery("truncate table " + tableName).executeUpdate();
				return new ArrayList();
			}
		});

	}

	private void setParams(Query query, Object... values) {
		if (!isEmptyOrNull(values)) {
			for (int i = 0; i < values.length; i++) {
				query.setParameter(i, values[i]);
			}

		}
	}

	/**
	 * 判断值是否为空或
	 * 
	 * @param values
	 * @return
	 */
	private boolean isEmptyOrNull(Object... values) {
		if (values == null || values.length == 0)
			return true;
		return false;
	}

}