每日随笔

今天尝试简化代码，将HttpSession session = req.getSession();放到最前面，但是由于servlet中要求的req都是在形参中事先定义好的，只能在每个函数中具体定义具体实现，而且在加入session之后还需要进行throw抛出异常。

private void select(HttpServletRequest req, HttpServletResponse resp, String name) throws Exception, IOException {
req.setCharacterEncoding("utf-8");
teacher tea = dao.Select(name);
HttpSession session = req.getSession();
session.setAttribute("tea", tea);
req.getRequestDispatcher("sightteacher.jsp").forward(req, resp);
return;
}