这里汇总了js实现时间显示几天前、几小时前或者几分钟前的常见方法。分享给大家供大家参考。具体如下:
方法一:
个人做法是保存时间戳,然后在前端用jq插件做转换,比如 smart-time-ago
方法二:
(通过freemarker模板)如果用freemarker模板可以这样写,别的模板类推
根据自己的意愿修改条件和输出,把你的datetime传进去即可
<#macro timeline_dt datetime=.now> <#assign ct = (.now?long-datetime?long)/1000> <#if ct gte 31104000><#--n年前-->${(ct/31104000)?int}年前 <#t><#elseif ct gte 2592000><#--n月前-->${(ct/2592000)?int}个月前 <#t><#elseif ct gte 86400*2><#--n天前-->${(ct/86400)?int}天前 <#t><#elseif ct gte 86400><#--1天前-->昨天 <#t><#elseif ct gte 3600><#--n小时前-->${(ct/3600)?int}小时前 <#t><#elseif ct gte 60><#--n分钟前-->${(ct/60)?int}分钟前 <#t><#elseif ct gt 0><#--n秒前-->${ct?int}秒前 <#t><#else>刚刚 </#if> </#macro> 方法三:
找到一个专门的插件PrettyTime
public static void main(String[] args) { PrettyTime p = new PrettyTime(); System.out.println(p.format(DateUtils.addDays(new Date(), 2)));} 方法四:
自定义Java方法:
private final static long minute = 60 * 1000;// 1分钟 private final static long hour = 60 * minute;// 1小时 private final static long day = 24 * hour;// 1天 private final static long month = 31 * day;// 月 private final static long year = 12 * month;// 年 /** * 返回文字描述的日期 * * @param date * @return */ public static String getTimeFormatText(Date date) { if (date == null) { return null; } long diff = new Date().getTime() - date.getTime(); long r = 0; if (diff > year) { r = (diff / year); return r + "年前"; } if (diff > month) { r = (diff / month); return r + "个月前"; } if (diff > day) { r = (diff / day); return r + "天前"; } if (diff > hour) { r = (diff / hour); return r + "个小时前"; } if (diff > minute) { r = (diff / minute); return r + "分钟前"; } return "刚刚"; }方法五:
使用js插件:(原版的timeago.js)
// Smart Time Ago v0.1.0 // Copyright 2012, Terry Tai, Pragmatic.ly // https://pragmatic.ly/ // Licensed under the MIT license. // https://github.com/pragmaticly/smart-time-ago/blob/master/LICENSE (function() {var TimeAgo;TimeAgo = (function() { function TimeAgo(element, options) {this.startInterval = 60000;this.init(element, options); } TimeAgo.prototype.init = function(element, options) {this.$element = $(element);this.options = $.extend({}, $.fn.timeago.defaults, options);this.updateTime();return this.startTimer(); }; TimeAgo.prototype.startTimer = function() {var self;self = this;return this.interval = setInterval((function() { return self.refresh();}), this.startInterval); }; TimeAgo.prototype.stopTimer = function() {return clearInterval(this.interval); }; TimeAgo.prototype.restartTimer = function() {this.stopTimer();return this.startTimer(); }; TimeAgo.prototype.refresh = function() {this.updateTime();return this.updateInterval(); }; TimeAgo.prototype.updateTime = function() {var self;self = this;return this.$element.findAndSelf(this.options.selector).each(function() {var timeAgoInWords; timeAgoInWords = self.timeAgoInWords($(this).attr(self.options.attr)); return $(this).html(timeAgoInWords);}); }; TimeAgo.prototype.updateInterval = function() {var filter, newestTime, newestTimeInMinutes, newestTimeSrc;if (this.$element.findAndSelf(this.options.selector).length > 0) {if (this.options.dir === "up") {filter = ":first"; } else if (this.options.dir === "down") {filter = ":last"; } newestTimeSrc = this.$element.findAndSelf(this.options.selector).filter(filter).attr(this.options.attr); newestTime = this.parse(newestTimeSrc); newestTimeInMinutes = this.getTimeDistanceInMinutes(newestTime);if (newestTimeInMinutes >= 0 && newestTimeInMinutes <= 44 && this.startInterval !== 60000) {this.startInterval = 60000;return this.restartTimer(); } else if (newestTimeInMinutes >= 45 && newestTimeInMinutes <= 89 && this.startInterval !== 60000 * 22) {this.startInterval = 60000 * 22;return this.restartTimer(); } else if (newestTimeInMinutes >= 90 && newestTimeInMinutes <= 2519 && this.startInterval !== 60000 * 30) {this.startInterval = 60000 * 30;return this.restartTimer(); } else if (newestTimeInMinutes >= 2520 && this.startInterval !== 60000 * 60 * 12) {this.startInterval = 60000 * 60 * 12;return this.restartTimer(); }} }; TimeAgo.prototype.timeAgoInWords = function(timeString) {var absolutTime;absolutTime = this.parse(timeString);return this.distanceOfTimeInWords(absolutTime) + (this.options.lang.suffix); }; TimeAgo.prototype.parse = function(iso8601) {var timeStr;timeStr = $.trim(iso8601);timeStr = timeStr.replace(/.ddd+/, "");timeStr = timeStr.replace(/-/, "/").replace(/-/, "/");timeStr = timeStr.replace(/T/, " ").replace(/Z/, " UTC");timeStr = timeStr.replace(/([+-]dd):?(dd)/, " $1$2");return new Date(timeStr); }; TimeAgo.prototype.getTimeDistanceInMinutes = function(absolutTime) { var timeDistance;timeDistance = new Date().getTime() - absolutTime.getTime();return Math.round((Math.abs(timeDistance) / 1000) / 60); }; TimeAgo.prototype.distanceOfTimeInWords = function(absolutTime) {var dim;dim = this.getTimeDistanceInMinutes(absolutTime);if (dim === 0) { return "" + this.options.lang.prefixes.lt + " " + this.options.lang.units.minute;} else if (dim === 1) { return "1 " + this.options.lang.units.minute;} else if (dim >= 2 && dim <= 44) { return "" + dim + " " + this.options.lang.units.minutes;} else if (dim >= 45 && dim <= 89) { return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.hour;} else if (dim >= 90 && dim <= 1439) { return "" + this.options.lang.prefixes.about + " " + (Math.round(dim / 60)) + " " + this.options.lang.units.hours;} else if (dim >= 1440 && dim <= 2519) { return "1 " + this.options.lang.units.day;} else if (dim >= 2520 && dim <= 43199) { return "" + (Math.round(dim / 1440)) + " " + this.options.lang.units.days;} else if (dim >= 43200 && dim <= 86399) { return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.month;} else if (dim >= 86400 && dim <= 525599) { return "" + (Math.round(dim / 43200)) + " " + this.options.lang.units.months;} else if (dim >= 525600 && dim <= 655199) { return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.year;} else if (dim >= 655200 && dim <= 914399) { return "" + this.options.lang.prefixes.over + " 1 " + this.options.lang.units.year;} else if (dim >= 914400 && dim <= 1051199) { return "" + this.options.lang.prefixes.almost + " 2 " + this.options.lang.units.years;} else { return "" + this.options.lang.prefixes.about + " " + (Math.round(dim / 525600)) + " " + this.options.lang.units.years;} }; return TimeAgo;})();$.fn.timeago = function(options) { if (options == null) options = {}; return this.each(function() {var $this, data;$this = $(this);data = $this.data("timeago");if (!data) $this.data("timeago", new TimeAgo(this, options));if (typeof options === "string") return data[options](); });};$.fn.findAndSelf = function(selector) { return this.find(selector).add(this.filter(selector));};$.fn.timeago.Constructor = TimeAgo;$.fn.timeago.defaults = { selector: "time.timeago", attr: "datetime", dir: "up", lang: {units: { second: "second", seconds: "seconds", minute: "minute", minutes: "minutes", hour: "hour", hours: "hours", day: "day", days: "days", month: "month", months: "months", year: "year", years: "years"},prefixes: { lt: "less than a", about: "about", over: "over", almost: "almost"},suffix: " ago" }}; }).call(this);使用js插件:(改装版(简哟版)timeago.js)中文的
(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 millisecondss = s.replace(/-/,"/").replace(/-/,"/");s = s.replace(/T/," ").replace(/Z/," UTC");s = s.replace(/([+-]dd):?(dd)/," $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 IEreturn $(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 elementvar 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 suckagedocument.createElement("abbr");document.createElement("time"); }));希望本文所述对大家的javascript程序设计有所帮助。