javasctipt如何显示几分钟前、几天前等_javascript技巧

jsp页面：

This is my JSP page.

${time}

(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 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 seconds minutes minutes hours hours days days days years 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) $(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");
}));

controller层：

package com.spring.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import com.spring.model.JsonMoel;
import com.sun.org.apache.bcel.internal.generic.NEW;

/**
* @author Qixuan.Chen
* 创建时间：2014-4-29
*/
@Controller
public class TimeAgoController {


/**
* @param request
* @param response
* @return
* @throws IOException
*/
@RequestMapping(value="time/show", method = {RequestMethod.POST,RequestMethod.GET})
public ModelAndView PostJsonTest(HttpServletRequest request,HttpServletResponse response) throws IOException{

ModelAndView mav=new ModelAndView();
mav.addObject("time", new Date());
mav.setViewName("time/timeago");
return mav;
}

}