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How to use moment to deal with timestamp and calculate the difference of time

2025-01-21 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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这篇"怎么利用moment处理时间戳并计算时间的差值"文章的知识点大部分人都不太理解,所以小编给大家总结了以下内容,内容详细,步骤清晰,具有一定的借鉴价值,希望大家阅读完这篇文章能有所收获,下面我们一起来看看这篇"怎么利用moment处理时间戳并计算时间的差值"文章吧。

项目使用nodejs写服务端,有个功能就是统计代理服务器流量,然后把统计的数据通过echarts渲染到页面。

当然统计数据这里用到了 定时器,在使用的是

var schedule = require( 'node-schedule');

有兴趣的同学可以在npm上搜一搜关于js定时任务的事,其实都大同小异,差不多都是运用corn表达式。

以下是我的 定时从代理服务器获取数据 并存库。

schedule.scheduleJob('*/15 * * * * * ', function () { console.log('timer !!!!!!!!!!'); var dataObj1 = {}; iplists.forEach(function (ele, index) { var req = http.request("http://" + ele + ":14567/stat", function (res) { dataObj1.time = new Date(res.headers.date); dataObj1.ip = req.getHeader("host").split(":")[0]; res.setEncoding('utf-8'); var tempData = ''; res.on('data', function (chunk) { tempData += chunk; var resultObj = JSON.parse(tempData); dataObj1.flow = resultObj.bw15s; var flow1 = new flowrank1({ ip: dataObj1.ip, flow: dataObj1.flow, time: new Date(dataObj1.time) }); flow1.save(function (err, flow1) { if (err) { console.log(err); return; } }); }); }); req.on("error", function (err) { console.log(err); }); req.end() }); });

现在来展示 需要根据前端传过来的 时间戳 来筛选出数据的代码,处理时间我用到了moment这个类库,基本包含了时间所有的处理方法。

总结以下moment的几个常用的函数:

moment().startOf('year'); // set to January 1st, 12:00 am this yearmoment().startOf('month'); // set to the first of this month, 12:00 ammoment().startOf('quarter'); // set to the beginning of the current quarter, 1st day of months, 12:00 ammoment().startOf('week'); // set to the first day of this week, 12:00 ammoment().startOf('isoWeek'); // set to the first day of this week according to ISO 8601, 12:00 ammoment().startOf('day'); // set to 12:00 am todaymoment().startOf('date'); // set to 12:00 am todaymoment().startOf('hour'); // set to now, but with 0 mins, 0 secs, and 0 msmoment().startOf('minute'); // set to now, but with 0 seconds and 0 millisecondsmoment().startOf('second'); // same as moment().milliseconds(0);moment().diff(Moment|String|Number|Date|Array);moment().diff(Moment|String|Number|Date|Array, String);moment().diff(Moment|String|Number|Date|Array, String, Boolean);var a = moment([2008, 9]);var b = moment([2007, 0]);a.diff(b, 'years'); // 1a.diff(b, 'years', true); // 1.75moment().add(Number, String);moment().add(Duration);moment().add(Object);var moment = require('moment');var starttime = moment(moment.unix(parseInt(req.query.starttime)).toDate());console.log("==============");console.log(moment(moment.unix(parseInt(req.query.starttime)).toDate()));var endtime = moment(moment.unix(parseInt(req.query.endtime)).toDate());console.log(moment(moment.unix(parseInt(req.query.endtime)).toDate()));console.log(endtime.diff(starttime, 'hour'));console.log(endtime.diff(starttime, 'months'));console.log(endtime.diff(starttime, 'months'));/** * 查询小于1天的数据 */if (endtime.diff(starttime, 'hour') = 1) { console.log("in flowrank3"); flowrank3.find({ ip: req.query.ip, time: { $gt: moment.unix(req.query.starttime).toDate(), $lte: moment.unix(req.query.endtime).toDate() } }, { _id: 0, ip: 1, flow: 1, time: 1 }, function(err, doc) { if (err) { console.log("err!!!!!") console.log(err); return res.end(JSON.stringify(retcode.operateDbErr)); } var result = retcode.res_ok; result.data = doc; console.log(doc) res.end(JSON.stringify(result)); })} else { return res.end(JSON.stringify(retcode.res_err));}以上就是关于"怎么利用moment处理时间戳并计算时间的差值"这篇文章的内容,相信大家都有了一定的了解,希望小编分享的内容对大家有帮助,若想了解更多相关的知识内容,请关注行业资讯频道。

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