实现修改学生资料action和页面调用

业务逻辑代码：

public boolean updateStudent(Student stu) {

Transaction transaction=null;

try{

Session session=MyHibernateSessionFactory.getSessionFactory().getCurrentSession();

transaction=session.beginTransaction();

session.update(stu);;

transaction.commit();

return true;

}catch(Exception e){

e.printStackTrace();

return false;

}finally{

if(transaction!=null){

transaction=null;

}

}

}

action代码：

public String save() throws ParseException{

Student stu=new Student();

stu.setSid(request.getParameter("sid"));

stu.setSname(request.getParameter("sname"));

stu.setGender(request.getParameter("gender"));

SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");

stu.setBirthday(sdf.parse(request.getParameter("birthday")));

stu.setAddress(request.getParameter("address"));

StudentDao sd=new StudentDaoImpl();

sd.updateStudent(stu);

return "save_success";

}