$(".time").timeago();

!function (t) { ???function e(e) { ???????var n = t.extend(o.settings, e) ?????????, s = t.proxy(r, this); ???????s(), ???????n.refreshMillis > 0 && setInterval(s, n.refreshMillis) ???} ???function r() { ???????var e = n(this) ?????????, r = e.datetime; ???????return isNaN(r) || t(this).text(o.inWords(r)), ???????this ???} ???function n(e) { ???????return e = t(e), ???????e.data("timeago") || e.data("timeago", { ???????????datetime: o.datetime(e) ???????}), ???????e.data("timeago") ???} ???function s(t) { ???????return (new Date).getTime() - t.getTime() ???} ???function i(t) { ???????var e = new Date; ???????return e.getMonth() > t.getMonth() || e.getDate() > t.getDate() ???} ???function a(t) { ???????return (new Date).getFullYear() > t.getFullYear() ???} ???Date.prototype.format = function (t) { ???????var e = { ???????????"M+": this.getMonth() + 1, ???????????"d+": this.getDate(), ???????????"h+": this.getHours(), ???????????"m+": this.getMinutes(), ???????????"s+": this.getSeconds(), ???????????"q+": Math.floor((this.getMonth() + 3) / 3), ???????????S: this.getMilliseconds() ???????}; ???????/(y+)/.test(t) && (t = t.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length))); ???????for (var r in e) ???????????new RegExp("(" + r + ")").test(t) && (t = t.replace(RegExp.$1, 1 == RegExp.$1.length ? e[r] : ("00" + e[r]).substr(("" + e[r]).length))); ???????return t ???} ???; ???var o = { ???????settings: { ???????????refreshMillis: 6e4, ???????????relative: !0, ???????????strings: { ???????????????suffixAgo: "前", ???????????????seconds: "刚刚", ???????????????minute: "1分钟", ???????????????minutes: "%d分钟", ???????????????hour: "1小时", ???????????????hours: "%d小时", ???????????????days: "%d天", ???????????????months: "%d月", ???????????????years: "%d年", ???????????????numbers: [] ???????????}, ???????????yearsAgoFormat: "yyyy-MM-dd", ???????????daysAgoFormat: "MM-dd hh:mm" ???????}, ???????inWords: function (e) { ???????????function r(e, r) { ???????????????var n = t.isFunction(e) ? e(r, u) : e ?????????????????, s = g.numbers && g.numbers[r] || r; ???????????????return n.replace(/%d/i, s) ???????????} ???????????var n = o.settings.relative; ???????????if (!n && a(e)) ???????????????return e.format(this.settings.yearsAgoFormat); ???????????if (!n && i(e)) ???????????????return e.format(this.settings.daysAgoFormat); ???????????var u = s(e) ?????????????, g = this.settings.strings ?????????????, h = g.suffixAgo ?????????????, d = Math.abs(u) / 1e3 ?????????????, l = d / 60 ?????????????, f = l / 60 ?????????????, m = f / 24 ?????????????, c = m / 30 ?????????????, M = m / 365; ???????????return words = 60 > d ? r(g.seconds, Math.floor(d)) : 60 > l ? r(g.minutes, Math.floor(l)) : 24 > f ? r(g.hours, Math.floor(f)) : 30 > m ? r(g.days, Math.floor(m)) : 365 > m ? r(g.months, Math.floor(c)) : r(g.years, Math.floor(M)), ???????????"刚刚" == words ? words : words + h ???????}, ???????parse: function (e) { ???????????var r = t.trim(e); ???????????return r = r.replace(/\.\d+/, ""), ???????????r = r.replace(/-/, "/").replace(/-/, "/"), ???????????r = r.replace(/T/, " ").replace(/Z/, " UTC"), ???????????r = r.replace(/([\+\-]\d\d)\:?(\d\d)/, " $1$2"), ???????????new Date(r) ???????}, ???????datetime: function (e) { ???????????var r = t(e).attr(o.isTime(e) ? "datetime" : "title"); ???????????return o.parse(r) ???????}, ???????isTime: function (e) { ???????????return "time" === t(e).get(0).tagName.toLowerCase() ???????} ???}; ???t.fn.timeago = function (t) { ???????return this.each(function () { ???????????e.call(this, t) ???????}), ???????this ???}}(window.jQuery)

<span class="time timeago" title="<fmt:formatDate value="${comment.createAt}" pattern="yyyy-MM-dd HH:mm:ss"/>"></span>

jQuery("span.timeago").timeago();

(function (factory) {
  if (typeof define === ‘function‘ && define.amd) {
    // AMD. Register as an anonymous module.
    define([‘jquery‘], factory);
  } else {
    // Browser globals
    factory(jQuery);
  }
}(function ($) {
  $.timeago = function(timestamp) {
    if (timestamp instanceof Date) {
      return inWords(timestamp);
    } else if (typeof timestamp === "string") {
      return inWords($.timeago.parse(timestamp));
    } else if (typeof timestamp === "number") {
      return inWords(new Date(timestamp));
    } else {
      return inWords($.timeago.datetime(timestamp));
    }
  };
  var $t = $.timeago;

  $.extend($.timeago, {
    settings: {
      refreshMillis: 60000,
      allowFuture: false,
      localeTitle: false,
      cutoff: 0,
      strings: {
        prefixAgo: null,
        prefixFromNow: null,
        suffixAgo: "前",
        suffixFromNow: "from now",
        seconds: "1分钟",
        minute: "1分钟",
        minutes: "%d分钟",
        hour: "1小时",
        hours: "%d小时",
        day: "1天",
        days: "%d天",
        month: "1月",
        months: "%d月",
        year: "1年",
        years: "%d年",
        wordSeparator: "",
        numbers: []
      }
    },
    inWords: function(distanceMillis) {
      var $l = this.settings.strings;
      var prefix = $l.prefixAgo;
      var suffix = $l.suffixAgo;
      if (this.settings.allowFuture) {
        if (distanceMillis < 0) {
          prefix = $l.prefixFromNow;
          suffix = $l.suffixFromNow;
        }
      }

      var seconds = Math.abs(distanceMillis) / 1000;
      var minutes = seconds / 60;
      var hours = minutes / 60;
      var days = hours / 24;
      var years = days / 365;

      function substitute(stringOrFunction, number) {
        var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction;
        var value = ($l.numbers && $l.numbers[number]) || number;
        return string.replace(/%d/i, value);
      }

      var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) ||
        seconds < 90 && substitute($l.minute, 1) ||
        minutes < 45 && substitute($l.minutes, Math.round(minutes)) ||
        minutes < 90 && substitute($l.hour, 1) ||
        hours < 24 && substitute($l.hours, Math.round(hours)) ||
        hours < 42 && substitute($l.day, 1) ||
        days < 30 && substitute($l.days, Math.round(days)) ||
        days < 45 && substitute($l.month, 1) ||
        days < 365 && substitute($l.months, Math.round(days / 30)) ||
        years < 1.5 && substitute($l.year, 1) ||
        substitute($l.years, Math.round(years));

      var separator = $l.wordSeparator || "";
      if ($l.wordSeparator === undefined) { separator = " "; }
      return $.trim([prefix, words, suffix].join(separator));
    },
    parse: function(iso8601) {
      var s = $.trim(iso8601);
      s = s.replace(/\.\d+/,""); // remove milliseconds
      s = s.replace(/-/,"/").replace(/-/,"/");
      s = s.replace(/T/," ").replace(/Z/," UTC");
      s = s.replace(/([\+\-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
      return new Date(s);
    },
    datetime: function(elem) {
      var iso8601 = $t.isTime(elem) ? $(elem).attr("datetime") : $(elem).attr("title");
      return $t.parse(iso8601);
    },
    isTime: function(elem) {
      // jQuery‘s `is()` doesn‘t play well with HTML5 in IE
      return $(elem).get(0).tagName.toLowerCase() === "time"; // $(elem).is("time");
    }
  });

  // functions that can be called via $(el).timeago(‘action‘)
  // init is default when no action is given
  // functions are called with context of a single element
  var functions = {
    init: function(){
      var refresh_el = $.proxy(refresh, this);
      refresh_el();
      var $s = $t.settings;
      if ($s.refreshMillis > 0) {
        setInterval(refresh_el, $s.refreshMillis);
      }
    },
    update: function(time){
      $(this).data(‘timeago‘, { datetime: $t.parse(time) });
      refresh.apply(this);
    },
    updateFromDOM: function(){
      $(this).data(‘timeago‘, { datetime: $t.parse( $t.isTime(this) ? $(this).attr("datetime") : $(this).attr("title") ) });
      refresh.apply(this);
    }
  };

  $.fn.timeago = function(action, options) {
    var fn = action ? functions[action] : functions.init;
    if(!fn){
      throw new Error("Unknown function name ‘"+ action +"‘ for timeago");
    }
    // each over objects here and call the requested function
    this.each(function(){
      fn.call(this, options);
    });
    return this;
  };

  function refresh() {
    var data = prepareData(this);
    var $s = $t.settings;

    if (!isNaN(data.datetime)) {
      if ( $s.cutoff == 0 || distance(data.datetime) < $s.cutoff) {
        $(this).text(inWords(data.datetime));
      }
    }
    return this;
  }

  function prepareData(element) {
    element = $(element);
    if (!element.data("timeago")) {
      element.data("timeago", { datetime: $t.datetime(element) });
      var text = $.trim(element.text());
      if ($t.settings.localeTitle) {
        element.attr("title", element.data(‘timeago‘).datetime.toLocaleString());
      } else if (text.length > 0 && !($t.isTime(element) && element.attr("title"))) {
        element.attr("title", text);
      }
    }
    return element.data("timeago");
  }

  function inWords(date) {
    return $t.inWords(distance(date));
  }

  function distance(date) {
    return (new Date().getTime() - date.getTime());
  }

  // fix for IE6 suckage
  document.createElement("abbr");
  document.createElement("time");
}));