我需要一个Nodejs调度器，允许以不同的间隔执行任务

I am looking for a node job schedule that will allow me to schedule a number of tasks at different intervals. For instance,

我正在寻找一个节点作业计划，它将允许我以不同的间隔安排许多任务。例如,

call function A every 30 seconds
每30秒调用函数A
call function B every 60 seconds
每60秒调用函数B
call function C every 7 days
每7天调用函数C

I also want to be able to start and stop the process.

我还希望能够开始和停止这个过程。

So far, I have looked at:

到目前为止，我看到:

later - the syntax confuses me, also apparently you cant schedule tasks beyond a month

稍后——语法让我困惑，显然你不能把任务安排在一个月之后
agenda- seems the most promising, however I'm confused about the database functionality

议程-看起来最有希望，但是我对数据库功能感到困惑
timeplan - too simple, can't start and stop

时间计划——太简单了，不能开始也不能停止

I find the syntax of the latter confusing.

我发现后者的语法很混乱。

6 个解决方案

#1

176

I would recommend node-cron. It allows to run tasks using Cron patterns e.g.

我建议node-cron。它允许使用Cron模式运行任务。

'* * * * * *' - runs every second
'*/5 * * * * *' - runs every 5 seconds
'10,20,30 * * * * *' - run at 10th, 20th and 30th second of every minute
'0 * * * * *' - runs every minute
'0 0 * * * *' - runs every hour (at 0 minutes and 0 seconds)

But also more complex schedules e.g.

还有更复杂的日程安排。

'00 30 11 * * 1-5' - Runs every weekday (Monday through Friday) at 11:30:00 AM. It does not run on Saturday or Sunday.

Sample code: running job every 10 minutes:

示例代码:每10分钟运行一次作业:

var cron = require('cron');
var cronJob = cron.job("0 */10 * * * *", function(){
    // perform operation e.g. GET request http.get() etc.
    console.info('cron job completed');
}); 
cronJob.start();

You can find more examples in node-cron wiki

你可以在node-cron wiki上找到更多的例子

More on cron configuration can be found on cron wiki

更多关于cron配置的信息可以在cron wiki上找到

I've been using that library in many projects and it does the job. I hope that will help.

我在很多项目中都使用过这个库，它可以完成任务。我希望这能有所帮助。

#2

I've used node-cron and agenda.

我用过点头和议程。

node-cron is a very simple library, which provide very basic and easy to understand api like crontab. It doesn't need any config and just works.

node-cron是一个非常简单的库，它提供了非常基本和容易理解的api，比如crontab。它不需要任何配置，只需要工作即可。

var cronJob = require('cron').CronJob;
var myJob = new cronJob('00 30 11 * * 1-5', function(){...});
myJob.start();

agenda is very powerful and fit for much more complex services. Think about ifttt, you have to run millions of tasks. agenda would be the best choice.

议程非常强大，适合更复杂的服务。想想ifttt，你必须运行数百万个任务。议程将是最好的选择。

Note: You need Mongodb to use Agenda

注意:您需要Mongodb来使用议程

var Agenda = require("Agenda");
var agenda = new Agenda({db: { address: 'localhost:27017/agenda-example'}});
agenda.every('*/3 * * * *', 'delete old users');
agenda.start();

#3

I have written a node module that provides a wrapper around setInterval using moment durations providing a declarative interface:

我已经编写了一个节点模块，它使用力矩持续时间提供声明接口，为setInterval提供一个包装器:

npm install every-moment

npm安装每一刻

var every = require('every-moment');

var timer = every(5, 'seconds', function() {
    console.log(this.duration);
});

every(2, 'weeks', function() {
    console.log(this.duration);
    timer.stop();
    this.set(1, 'week');
    this.start();
});

https://www.npmjs.com/package/every-moment

https://github.com/raygerrard/every-moment

#4

I think the best ranking is

我认为最好的排名是

1.node-schedule

1. node-schedule

2.later

2.之后

3.crontab

3. crontab

and the sample of node-schedule is below:

而节点时间表的样本如下:

var schedule = require("node-schedule");
var rule = new schedule.RecurrenceRule();
//rule.minute = 40;
rule.second = 10;
var jj = schedule.scheduleJob(rule, function(){
    console.log("execute jj");
});

Maybe you can find the answer from node modules.

也许您可以从节点模块中找到答案。

#5

nodeJS default

nodeJS违约

https://nodejs.org/api/timers.html

setInterval(function() {
    // your function
}, 5000);

#6

I have written a small module to do just that. You can find it here:
https://github.com/paragi/timexe.git
https://www.npmjs.com/package/timexe

我已经写了一个小模块来做这个。您可以在这里找到它:https://github.com/i/timexe.git https://www.npmjs.com/package/timexe

Some of the features:

的一些特点:

Its simple,small reliable code and has no dependencies
它的简单、小、可靠的代码并且没有依赖性
Resolution is in milliseconds and has high precision over time
分辨率以毫秒为单位，随着时间的推移具有很高的精度
Cron like, but not compatible (reversed order and other Improvements)
Cron喜欢，但不兼容(颠倒顺序和其他改进)
I works in the browser too
我也在浏览器中工作

Install:

安装:

npm install timexe

use:

使用:

var timexe = require('timexe');
//Every 30 sec
var res1=timexe(”* * * * * /30”, function() console.log(“Its time again”)});

//Every minute
var res2=timexe(”* * * * *”,function() console.log(“a minute has passed”)});

//Every 7 days
var res3=timexe(”* y/7”,function() console.log(“its the 7th day”)});

//Every Wednesdays 
var res3=timexe(”* * w3”,function() console.log(“its Wednesdays”)});

// Stop "every 30 sec. timer"
timexe.remove(res1.id);

you can achieve start/stop functionality by removing/re-adding the entry directly in the timexe job array. But its not an express function.

可以通过直接在timexe作业数组中删除/重新添加条目来实现启动/停止功能。但它不是一个表达函数。

#1

176