今天完成的任务

完成了做一个登陆需要的全部操作

/**
 * 注册页面的载体
 * @param user
 * @return
 */
@RequestMapping(value = "/register", method = RequestMethod.GET)
public ModelAndView userRegister(User user){
    return new ModelAndView("userRegister");
}



/**
 * controller层只负责判断输入的是否为空数据
 *
 * @param user
 * @return
 */
@RequestMapping(value = "/getRegister", method = RequestMethod.POST)
public ModelAndView userGetRegister(User user){
    //检测是否为空为null
    if (user.getName() != null && user.getPassword() != null && user.getEmail()!=null & user.getName().length() != 0 && user.getPassword().length() != 0 && user.getEmail().length()!=0 ) {
        //检测输入的账号是否重复
        User userProofread = userService.getUserFromName(user);
        if (user.getName().equals(userProofread.getName())) {
            return new ModelAndView("failLogon");
        }else{
            userService.addUser(user);
            return new ModelAndView("successRegister");
        }

    }else{
        return new ModelAndView("failLogon");
    }
}

注册

@RequestMapping(value = "/logon", method = RequestMethod.GET)
public ModelAndView UserLogon(User user) {
    ModelAndView mAndView = new ModelAndView("userLogon");
    return mAndView;
}


/**
 *生成cookie页面
 * @param user 用户的数据
 * @param response cookie
 * @return
 *
 * 判断UserLogon方法中的user的数据是否记录在数据库中
 * 依此判断是否生成cookie
 *
 */

@RequestMapping(value = "/getLogon", method = RequestMethod.POST)
public ModelAndView getUserLogOn(User user,HttpServletResponse response) {
    if (user.getName() != null && user.getPassword() != null & user.getName().length() != 0 && user.getPassword().length() != 0) {//不能为空数据
        PersistentLogins p=persistentLoginsService.getUserFromName(user.getName());//获取卡密信息,这句话得修改?
        if(user.getName()!=null) {
            String userMD5 = AppMD5Util.getMD5(user.getName(), user.getPassword());
            if (p.getToken().equals(userMD5)) {
                CookieUtils.addCookie(user, userMD5, response);
                return new ModelAndView("successLogon");
            } else {
                return new ModelAndView("failLogon");
            }
        }else{return new ModelAndView("failLogon");}
    }else{
        return new ModelAndView("failLogon");
    }
}

登录

@RequestMapping(value = "/quit", method = RequestMethod.GET)
public ModelAndView userQuit(User user, HttpServletRequest request, HttpServletResponse response) {
    CookieUtils.delCookie(response,CookieUtils.getRootCookie(request));
    return new ModelAndView("testLogon");
}

退出

检验

/**判定页面
 * 检测如果cookie的值与用户的值相同的话
 */

@RequestMapping(value = "/test/u", method = RequestMethod.GET)
public ModelAndView test(User user, HttpServletRequest request, HttpServletResponse response) {
       return new ModelAndView("testLogon");
}

<mvc:interceptors>
    <mvc:interceptor>
        <mvc:mapping path="/**/u"/>
        <bean class="com.task.interceptor.LoginInterceptor" />
    </mvc:interceptor>
</mvc:interceptors>

这里写了一个拦截/**/u界面的拦截器

拦截方法如下

 /**
     * 用于在登录前验证 _csrf 参数
     * */


    @Autowired
    @SuppressWarnings("SpringJavaAutowiringInspection")
    private PersistentLoginsService persistentLoginsService;

    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
            Cookie cookie= CookieUtils.getRootCookie(request);
            if(cookie!=null){
        if(persistentLoginsService.verifyUserFromtoken(cookie.getValue())) {
            System.out.println(persistentLoginsService.verifyUserFromtoken(cookie.getValue()));
            return true;
        }else {
            response.setContentType("text/html;charset=utf-8");
            response.setStatus(403);
            OutputStream oStream = response.getOutputStream();
            oStream.write("无效的登陆！！！".getBytes("UTF-8"));
            return false;
        }
        }else{
            response.setContentType("text/html;charset=utf-8");
            response.setStatus(403);
            OutputStream oStream = response.getOutputStream();
            oStream.write("先登陆！！！".getBytes("UTF-8"));

            return false;
        }
    }

    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
        super.afterCompletion(request, response, handler, ex);
    }

}

很简单的判断

两个if一个是检验cookie中的密文与数据库记录的是否相同，另一个是检验有没有这个cookie

至于如何检验cookie中的密文与数据库记录的是否相同，我这里使用的方法简直烂爆了

我用的是再调取一遍存放密文的表，看看表中是否有这个密文

public boolean verifyUserFromtoken(String token) {
    List<PersistentLogins> persistentLogins = persistentLoginsMapper.verifyUserFromtoken(token);
    System.out.println(persistentLogins.size());
    System.out.println(persistentLogins);
    if (persistentLogins.size() != 0) {
        return true;
    } else {
        return false;
    }

太慢，但是我又没啥好的方法

service层

 public int addPersistent_logins(User user){
       PersistentLogins p=new PersistentLogins();
       p.setUsername(user.getName());
       String a=AppMD5Util.getMD5(user.getName(),user.getPassword());
       System.out.println(a);
       p.setToken(a);
       return persistentLoginsMapper.addPersistent_logins(p);
    }



   public PersistentLogins getUserFromName(String username){
            List<PersistentLogins> getPersistentLogins= persistentLoginsMapper.getUserFromName(username);

       if(getPersistentLogins.size()!=1){
           return  new PersistentLogins();
       }else{
           return getPersistentLogins.get(0);
       }
   }

    public PersistentLogins verifyUserFromName(String username){
        List<PersistentLogins> getPersistentLogins= persistentLoginsMapper.verifyUserFromName(username);

        if(getPersistentLogins.size()!=1){
            return  new PersistentLogins();
        }else{
            return getPersistentLogins.get(0);
        }
    }


  public boolean verifyUserFromtoken(String token) {
      List<PersistentLogins> persistentLogins = persistentLoginsMapper.verifyUserFromtoken(token);
      System.out.println(persistentLogins.size());
      System.out.println(persistentLogins);
      if (persistentLogins.size() != 0) {
          return true;
      } else {
          return false;
      }

  }
}

    public List<User> list(){
        return  userMapper.list();
    }

    /**
     * 注册所使用的
     */

    public int addUser(User user){
        user.setBirthday(unit.getCreationTime());//获取记录时间
        persistentLoginsServiceImpl.addPersistent_logins(user);//将用户信息加密后输入到另一表中
        return userMapper.addUser(user);

    }

    /**
     * 若表中此用户不唯一则返回null
     * @param user
     * @return
     */

    public User getUserFromName(User user){
        List<User> getUser=userMapper.getUserFromName(user);
        if(getUser.size()!=1){
            return  new User();
        }else{
            return getUser.get(0);
        }
    }


}

cookie的操作

public class CookieUtils {
    /**
     *
     * @param user
     * @param userMD5
     * @param response
     */
    public static void addCookie(User user, String userMD5, HttpServletResponse response) {
        Cookie cookie = new Cookie("user", userMD5);
        cookie.setMaxAge(COOKIE_MAX_AGE);//设置周期
        response.addCookie(cookie);
    }
/*


 */


    public static void delCookie(HttpServletResponse response, Cookie cookie) {
        if (cookie != null) {
            cookie.setPath("/");
            cookie.setMaxAge(0);
            cookie.setValue(null);

            response.addCookie(cookie);
        }
    }

    /**
     * 返回cookie
     *
     * @param
     * @param request
     * @return
     */

    public static Cookie getRootCookie(HttpServletRequest request) {

        Cookie[] cookies = request.getCookies();//获取cookie
        for (Cookie c : cookies) {
            if (c.getName().equals("user"))
                return c;
        }
        return null;

    }


}

cookie默认是存放一个月的

有一个小问题

任务四是用tiles做的

这一部分是其中的一个页面

请问这一部分该如何通过判定cookie的不同来显示不同的页面