这篇文章主要介绍了js实现时间显示几天前、几小时前或者几分钟前的方法,实例汇总分析了时间显示格式转换的常用思路与技巧,需要的朋友可以参考下
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(//./d/d/d+/, "");
- timeStr = timeStr.replace(/-/, "/").replace(/-/, "/");
- timeStr = timeStr.replace(/T/, " ").replace(/Z/, " UTC");
- timeStr = timeStr.replace(/([/+/-]/d/d)/:?(/d/d)/, " $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 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");
- }));
希望本文所述对大家的javascript程序设计有所帮助。
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