今天完成的事

完成拦截器的代码编写

public class UserInterceptor extends HandlerInterceptorAdapter{


    private static final Log log = LogFactory.getLog(UserInterceptor.class);

    @Autowired
    private UserService userService;

    public static String SPLITTER_REGEX = "\\|";

    public static final String USER_ID = "userId";

    @Autowired
    private CookieUtil cookieUtil;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception{
        //使用枚举类打印出request中所有参数
        log.info(" request uri: " + request.getRequestURI());
        log.info("request token" + request.getHeader("token"));
        Enumeration<String> names = request.getParameterNames();
        log.info("the token is:" + request.getParameter("token"));
        while (names.hasMoreElements()) {
            String name = names.nextElement();
            String value = request.getParameter(name);
            log.info(" Parameter  name : " + name + " value : " + value);
         }
        //从request获取名为token的参数
        String token = request.getParameter("token");
        //如果没取到就尝试从请求头获取
        if(token == null){
          token = request.getHeader("token");
        }
        log.info("get the token in request:"+token);
        //从token中获取用户信息
        if(token != null){
            Map map =  this.decodeCookie(token);
            log.info("the map is :"+map);
            Long uid = null;
            User user = null;
            //从Map中获取用户信息
            if(map != null){
                uid = (Long) map.get(USER_ID);
                log.info("get the user id :"+uid);
            }else {
               log.info("the map is null");
               return noLogin(request,response);
            }
            //判断用户状态
            if(uid != null){
                user = userService.getObjectById(uid);
                log.info("get the user :"+user);
                if(user != null){
                    if (user.getStatus().equals(Constant.FROZEN)){
                        log.info("the user is frozen");
                      return userOff(request,response);
                    }
                    //将用户信息放到request中
                    request.setAttribute("user", user);
                }else {
                    log.info("the user is not exist");
                    return noLogin(request,response);
                }
            }else {
                log.info("the user id is null");
                return noLogin(request,response);
            }
        }else {
            //从cooke中获取uid
            Long uid = cookieUtil.getID(request);
            log.info("the user id is :"+uid);
            if(uid == null){
                log.info("the user id is null");
                return noLogin(request,response);
            } else {
                log.info("get the user id from cookie:"+uid);
                User user = userService.getObjectById(uid);
                if(user == null){
                    log.info("the user is not exist");
                    return noLogin(request,response);
                }else {
                    if(user.getStatus().equals(Constant.FROZEN)){
                        log.info("the user is frozen");
                        return userOff(request,response);
                    }
                    log.info("get the user :"+user);
                    request.setAttribute("user",user);
                }
                log.info("get uid is " + uid);
                return true;
            }
        }
        return true;
    }



    private Map decodeCookie(String value) {
        if (StringUtils.isBlank(value)) {
            log.info("the value can not be null");
            return null;
        }
        try {
            String[] p = value.split(SPLITTER_REGEX);
            Long userId = new Long(p[0]);
            String crypt = p[1];
            String plainUserInfo = UserCryptUtil.userDecrypt(crypt);
            String userName = UserCryptUtil.getUserNameFromPlain(plainUserInfo);
            Long uid = UserCryptUtil.getUserIdFromPlain(plainUserInfo);
            if (userId.equals(uid)) {
                log.info("get the userInfo from token");
                return getUserIdentity(userName, userId);
            }
        } catch (Exception e) {
            e.printStackTrace();
            log.error("Wrong cookie format: [" + value + "] message is:" + e.getMessage());
            return null;
        }
        return  null;
    }


    public static Map getUserIdentity(String userName, Long userId) {
        Map map = new HashMap();
        map.put(CookieUtil.USER_NAME, userName);
        map.put(CookieUtil.USER_ID, userId);
        return map;
    }

    private Boolean noLogin(HttpServletRequest request,HttpServletResponse response){
        log.info(" user don't login");

        RequestDispatcher rd = request.getRequestDispatcher("/r/json/noLogin.json");
        try {
            rd.forward(request, response);
        } catch (ServletException e) {
            e.printStackTrace();
            log.error("noLogin() error:"+e.getMessage());
        } catch (IOException e) {
            e.printStackTrace();
            log.error("noLogin() error:"+e.getMessage());
        }
        return false;
    }

    private boolean userOff( HttpServletRequest request,HttpServletResponse response)
            throws IOException {

        log.info(" user is  freeze");
        //清除用户Cookie
        cookieUtil.clearCookie(response);
        RequestDispatcher rd = request.getRequestDispatcher("/r/json/statusOff.json");

        try {
            rd.forward(request, response);
        } catch (ServletException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return false;

    }
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
                           ModelAndView modelAndView)
            throws Exception {

        log.info("p =========================================== ");
    }

    /**
     * 获取跳转链接的地址
     *
     * @param request
     * @return
     */
    public String getInterceptorUrl(HttpServletRequest request) {

        String interceptorUrl = request.getRequestURI()
                + (null == request.getQueryString() ? "" : "?" + request.getQueryString()).toString();
        interceptorUrl = interceptorUrl.replace("/app/", "/");

        log.info("get getInterceptorUrl is " + interceptorUrl);

        return interceptorUrl;
    }



}

遇到的问题：微信登录完全没有思路 好在网上找到了比较好的入门视频 

明天的计划：开始搞微信登录，看了视频之后微信的开发文档也能看的懂了，实现的方法就是使用httpclint执行url，通过code获得access_token,再通过token获取oppenid和微信用户信息

收获：微信登录的实现逻辑

任务进度：微信登录

开始时间：2017.12.12

预计demo时间：2018.02.08

禅道：http://task.ptteng.com/zentao/project-burn-506.htm