Goods:修改密码功能及退出功能实现

修改密码

UserServlet

 1 //修改密码
 2     public String updatePassword(HttpServletRequest req, HttpServletResponse resp) 
 3     {
 4         /*
 5          * 1、封装表单数据到userzhong
 6          * 2从session中获取uuid
 7          * 3、使用uid 和表单中的oldPass和newpass来调用serviceff
 8          *   如果出现异常 保存异常信息到request中 转发到pwd.jsp
 9          *  4、保存成功信息到request中
10          *  5、转发到msg.jsp
11          */
12         
13         User formUser = CommonUtils.toBean(req.getParameterMap(), User.class);
14         User user=(User) req.getSession().getAttribute("sessionUser");
15         if(user==null)
16         {
17             req.setAttribute("msg", "您还没有登录");
18             return "f:/jsps/user/login.jsp";
19         }
20         
21         try {
22             userService.updatePassword(user.getUid(), formUser.getNewpass(), 
23                     formUser.getLoginpass());
24             //没有抛出异常保存成功信息
25             req.setAttribute("msg", "修改密码成功");
26             req.setAttribute("code", "success");
27             return "f:/jsps/msg.jsp";
28         } catch (UserException e) {
29             req.setAttribute("msg", e.getMessage());//保存异常信息到request中
30             req.setAttribute("user", formUser);
31             return "f:/jsps/user/pwd.jsp";
32         }
33         
34     }

UserService

 1 // 修改密码
 2     public void updatePassword(String uid, String newPass, String oldPass)
 3             throws UserException {
 4 
 5         try {
 6             // 校验老密码
 7             boolean bool = userDao.findByUidAndPassword(uid, oldPass);
 8             if (!bool) {
 9                 throw new UserException("老密码错误");
10             }
11             // 修改密码
12             userDao.updatePassword(uid, newPass);
13         } catch (SQLException e) {
14             // TODO Auto-generated catch block
15             throw new RuntimeException(e);
16         }
17 
18     }

退出功能实现:

1 // 退出功能
2     public String quit(HttpServletRequest req, HttpServletResponse resp) {
3         // session无效
4         req.getSession().invalidate();
5         return "r:/jsps/user/login.jsp";
6 
7     }