僅一行代碼完成各類數據庫操做，基於spring的HibernateTemplate

轉自：http://www.oschina.net/code/snippet_561293_10813

在用到時，只須要繼承自BaseHibernate，能夠實現全部接口對於數據庫的操做，增、刪、改、查、分頁、統計等。

[1].[代碼] [Java]代碼 跳至 [1] [2] [3]

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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;      }        /**       * 插入對象       *       * @param entity       * @return       */      public int save(Object entity) {          return (Integer) hibernateTemplate.save(entity);      }        /**       * 刪除對象       *       * @param entity       */      public void delete(Object entity) {          hibernateTemplate.delete(entity);      }        /**       * 修改對象       *       * @param entity       */      public void update(Object entity) {          hibernateTemplate.update(entity);      }        /**       * 根據ID查詢對象       *       * @param entityClass       *            類名,如:String.class       * @param id       *            ID值       */      public <T> T query(Class<T> entityClass, int id) {          return hibernateTemplate.get(entityClass, id);      }        /**       * 查詢所有       *       * @param className       *            類名       * @return       */      @SuppressWarnings ( "unchecked" )      public <T> List<T> queryAll(Class<?> className) {          return hibernateTemplate.find( "from " + className.getName());      }        /**       * 分頁       *       * @param entityClass       *            類名       * @param index       *            當前頁數       * @param size       *            每頁顯示的大小       * @param order       *            排序類型       * @param propertyName       *            要排序的屬性名       * @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;      }        /**       * 獲取總頁數       *       * @param className       *            類名       * @param size       *            每頁顯示的大小       * @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;      }        /**       * 根據字段查詢       *       * @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();              }          });      }        /**       * 根據字段查詢能夠分的頁數       *       * @param className       *            要查詢的實體類       * @param params       *            屬性列表       * @param size       *            每頁顯示的大小       * @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;      }        /**       * 獲取總記錄數根據屬性       *       * @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 );      }        /**       * 根據字段查詢並分頁顯示       *       * @param className       *            要分頁的實體類       * @param params       *            字段列表       * @param index       *            當前頁       * @param size       *            每頁顯示的大小       * @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();              }          });      }        /**       * 保存或更新對象       *       * @param entity       *            對象       */      public void saveOrUpdate(Object entity) {          hibernateTemplate.saveOrUpdate(entity);      }        /**       * 批量修改       *       * @param queryString       *            HQL語句       * @return 受影響行數       */      public int bulkUpdate(String queryString) {          return hibernateTemplate.bulkUpdate(queryString);      }        /**       * 批量修改       *       * @param queryString       *            HQL語句       * @param values       *            參數的值       * @return 受影響行數       */      public int bulkUpdate(String queryString, Object... values) {          return hibernateTemplate.bulkUpdate(queryString, values);      }        /**       * 批量刪除       *       * @param collection       *            要刪除的集合       */      public void deleteAll(Collection<?> collection) {          hibernateTemplate.deleteAll(collection);      }        /**       * 模糊查詢       *       * @param className       *            類名       * @param field       *            字段名       * @param value       *            值       * @param matchMode       *            匹配模式:ANYWHERE->任意位置、END->結束、START->開始、EXACT->精確匹配       */      @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;      }        /**       * 執行hql查詢語句       *       * @param hql       *            hql語句       * @param values       *            值列表       * @return       */