Goods:修改密码功能及退出功能实现

 修改密码

UserServlet

//修改密码
    public String updatePassword(HttpServletRequest req, HttpServletResponse resp) 
    {
        /*
         * 1、封装表单数据到userzhong
         * 2从session中获取uuid
         * 3、使用uid 和表单中的oldPass和newpass来调用serviceff
         *   如果出现异常 保存异常信息到request中 转发到pwd.jsp
         *  4、保存成功信息到request中
         *  5、转发到msg.jsp
         */
        
        User formUser = CommonUtils.toBean(req.getParameterMap(), User.class);
        User user=(User) req.getSession().getAttribute("sessionUser");
        if(user==null)
        {
            req.setAttribute("msg", "您还没有登录");
            return "f:/jsps/user/login.jsp";
        }
        
        try {
            userService.updatePassword(user.getUid(), formUser.getNewpass(), 
                    formUser.getLoginpass());
            //没有抛出异常保存成功信息
            req.setAttribute("msg", "修改密码成功");
            req.setAttribute("code", "success");
            return "f:/jsps/msg.jsp";
        } catch (UserException e) {
            req.setAttribute("msg", e.getMessage());//保存异常信息到request中
            req.setAttribute("user", formUser);
            return "f:/jsps/user/pwd.jsp";
        }
        
    }

UserService

// 修改密码
    public void updatePassword(String uid, String newPass, String oldPass)
            throws UserException {

        try {
            // 校验老密码
            boolean bool = userDao.findByUidAndPassword(uid, oldPass);
            if (!bool) {
                throw new UserException("老密码错误");
            }
            // 修改密码
            userDao.updatePassword(uid, newPass);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            throw new RuntimeException(e);
        }

    }

 退出功能实现:

// 退出功能
    public String quit(HttpServletRequest req, HttpServletResponse resp) {
        // session无效
        req.getSession().invalidate();
        return "r:/jsps/user/login.jsp";

    }