首先贴出realm方法

  protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        SimpleShiroToken upToken = (SimpleShiroToken) token;
        User user = (User) upToken.getPrincipal();
        return new SimpleAccount(user.getId(), user.getName(), getName());
    }

slogservice里面每次到

         if (uid != null && uid instanceof Number)
                slog.setUid(((Number)uid).intValue());

的时候直接跳过不执行，debug显示的uid是1啊！
然后我自己重写了方法才好的

 public static Callable<Integer> GET_USER_ID = new Callable<Integer>() {
        public Integer call() throws Exception {
            Integer u;
            try {
                u = Integer.valueOf(SecurityUtils.getSubject().getPrincipal().toString());
            } catch (Throwable e) {
                return Integer.valueOf(-1);
            }
            if (u != null) {
                return u;
            }
            return Integer.valueOf(0);
        }
    };
    public void log(String t, String tag, String source, String msg, boolean async) {
        SlogBean slog = c(t, tag, source, msg);
        try {
            Integer uid = GET_USER_ID.call();
            if (uid != null && uid instanceof Number)
                slog.setUid(uid);
        }
        catch (Exception e) {
            log.debug("get user id fail", e);
        }
        if (async)
            async(slog);
        else
            sync(slog);
    }