nodejs定时任务node-schedule

１：使用npm安装node-schedule模块

npm install node-schedule

（１）每隔５分钟执行一次：

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

var rule = new schedule.RecurrenceRule();

rule.minute = [0,5,10,15,20,25,30,35,40,45,50,55];

var j = schedule.scheduleJob(rule,function(){
    console.log("执行任务："+new Date());
});

（２）上午８点到晚上２０点每隔５分钟执行一次：

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

var rule = new schedule.RecurrenceRule();

rule.hour = [8,9,10,11,12,13,14,15,16,17,18,19,20];
rule.minute = [0,5,10,15,20,25,30,35,40,45,50,55];

var j = schedule.scheduleJob(rule,function(){
    console.log("执行任务："+new Date());
});

２：以下内容参考：

http://www.codexpedia.com/javascript/nodejs-cron-schedule-examples/

Using the node-schedule to schedule a job to run at a specific time on a specific date. As the first example, the node-schedule module is imported and save it in the variable cron. In the following examle, the require statement will be ommitted and this variable cron will be used.

var cron = require('node-schedule');
/* run the job at 18:55:30 on Dec. 14 2018*/
var date = new Date(2018, 11, 14, 18, 56, 30);
cron.scheduleJob(date, function(){
    console.log(new Date(), "The world is going to end today.");    
});

Schedule a recurring job using the RecurrenceRule, example 1.

var rule = new cron.RecurrenceRule();
rule.second = 30;
cron.scheduleJob(rule, function(){
    console.log(new Date(), 'The 30th second of the minute.');
});

Schedule a recurring job using the RecurrenceRule, example 2.

/* This runs at 3:10AM every Friday, Saturday and Sunday. */
var rule2 = new cron.RecurrenceRule();
rule2.dayOfWeek = [5,6,0];
rule2.hour = 3;
rule2.minute = 10;
cron.scheduleJob(rule2, function(){
    console.log('This runs at 3:10AM every Friday, Saturday and Sunday.');
});

Specify the schedule as an object literal.

/* This runs at 2:30AM on every Sunday */
cron.scheduleJob({hour: 2, minute: 30, dayOfWeek: 0}, function(){
    console.log('This runs at 2:30AM on every Sunday');
});

Specify the schedule in unix cron syntax.

/* This runs at the 30th mintue of every hour. */
cron.scheduleJob('30 * * * * *', function(){
    console.log('This runs at the 30th mintue of every hour.');
});