4.9 定时任务schedule-博客后端Api-NodeJs+Express+Mysql实战

node-schedule

https://www.npmjs.com/package...

使用示例

比如每天下午6点发邮件通知天气

const schedule = require('node-schedule'); //定时服务

//每天18h运行天气预报任务
schedule.scheduleJob('0 0 18 * * *', function () {
  console.log('schedule:' + new Date());
  email.sendEmail();//执行邮件发送
});

sendEmail 执行邮件发送，此时借助nodemailer邮件服务（https://www.npmjs.com/package...）

const nodemailer = require('nodemailer'); //邮件服务
const axios = require('axios');

module.exports = {
  /**
   * 借助高德地图 获取天气
   */
  getTianqi: async function (citycode){
    let { status, data } = await axios.get(`https://restapi.amap.com/v3/weather/weatherInfo?city=${citycode}&extensions=all&key=这里是自己申请的高德key`);
    if (status === 200 && data && data.forecasts && data.forecasts.length) {
      let { city, casts } = data.forecasts[0];
      let { week, dayweather, nightweather, daytemp, nighttemp, daypower, nightpower} = casts[1];
      return `周${week} ${city}:${nightweather}${nighttemp}°~${dayweather}${daytemp}°,风${daypower}~${nightpower}`;
    }else{
      return ''
    }
  },
  /**
   * 发送邮件
   */
  sendEmail: async function(){
    let self = this;
    try {
      let bj = await self.getTianqi('110105');//获取天气-朝阳区 110105
      //发送邮件
      let transporter = nodemailer.createTransport({
        service: 'qq',
        auth: {
          user: "[e-mail]",
          pass: "xxxxx",//授权码 (可在qq邮箱获取)
        }
      });
      await transporter.sendMail({
        from: `"系统"<[e-mail]>`,
        to: "[e-mail]",
        subject: `天气预报`,
        text: bj,
      });
      // console.log('Message sent success: ' + JSON.stringify(info));
    } catch (error) {
      console.log(error);
    }
  },
}