?? teacherdao.java
字號:
package dao;
import hibernate.Teacher;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
public class TeacherDAO extends HibernateDaoSupport
{
private Log log=LogFactory.getLog(TeacherDAO.class);
public List isUserValid(String name,String password)
{
try{
String[] teacherlist=new String[2];
teacherlist[0]=name;
teacherlist[1]=password;
List list=this.getHibernateTemplate().find("from Teacher tea where tea.name=? and tea.password=?",teacherlist);
return list;
}catch(Exception e)
{
log.fatal(e);
return null;
}
}
public List getTeacher()
{
try{
List list=this.getHibernateTemplate().find("from Teacher tea");
return list;
}catch(Exception e)
{
return null;
}
}
public boolean deleteTeacherByID(String id)
{
try{
Teacher tea=(Teacher)this.getHibernateTemplate().load(Teacher.class,id);
this.getHibernateTemplate().delete(tea);
return true;
}catch(Exception e)
{
return false;
}
}
public Teacher getTeacherByID(String id)
{
try{
Teacher tea=(Teacher)this.getHibernateTemplate().load(Teacher.class, id);
return tea;
}catch(Exception e)
{
return null;
}
}
public boolean updateTeacher(Teacher tea)
{
try{
this.getHibernateTemplate().update(tea);
return true;
}catch(Exception e)
{
log.fatal(e);
return false;
}
}
public boolean saveTeacher(Teacher tea)
{
try{
this.getHibernateTemplate().save(tea);
return true;
}catch(Exception e)
{
log.fatal(e);
return false;
}
}
}
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