解决hibernate查询时，自动更新问题

对hibernate的session操作时时，默认的FlushModel时auto的，对于查询，不需要Flush。hibernate建议在session的操作前，设置 flush mode? 为MANUAL 的（还有NRVER，但hibernate是deprecated的）。

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For a logically "read only" session, it is reasonable to set the session's flush mode to FlushMode.MANUAL at the start of the session (in order to achieve some extra performance).

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dao查询代码：

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@SuppressWarnings("unchecked")public List searchByHql(final String hql) {       System.out.println("searchByHql:"+hql);HibernateCallback cb = new HibernateCallback() {public Object doInHibernate(Session session) {session.setFlushMode(FlushMode.MANUAL);Query q = session.createQuery(hql);return q.list();}};List list = (List) getHibernateTemplate().execute(cb);return list;}

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