artsite/service/cron-jobs/sitemap2.js

/**
 * 每天运行一次，生成站点地图
 */

const fs = require('fs');
const datefns = require('date-fns');
const models = require('../../models');

const sitemapPath = __dirname + '/../../dist/sitemap.xml';
const sitemapTempPath = __dirname + '/../../dist/sitemap.xml.temp';

// 生成站点地图
async function generateSitemap() {
  let date = datefns.format(Date.now(), 'yyyy-MM-dd');
  let commonXml = [
    '<?xml version="1.0" encoding="UTF-8"?>',
    // '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">',
    '<urlset',
    '  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"',
    '  xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd http://www.w3.org/1999/xhtml http://www.w3.org/2002/08/xhtml/xhtml1-strict.xsd"',
    '  xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"',
    '  xmlns:xhtml="http://www.w3.org/1999/xhtml"',
    '>',
    '  <url>',
    '    <loc>https://art.pcoloring.com</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/coloring-page-gallery</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/video-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/mandala-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/zentangle-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/zen-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/flower-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/cat-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/butterfly-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/architecture-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/simple-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/girl-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/fantasy-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/christmas-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/patterns-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/peacock-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/dragon-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/unicorn-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/food-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks/how-to-color-online</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks/how-to-color-mandala-coloring-page</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks/benefit-of-coloring-pages</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks/choose-the-right-coloring-tools</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks/color-combinations-guide</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/tips-tricks/coloring-techniques-for-beginners</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/app</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/contact</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/about</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/faq</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/privacy-policy</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
    '  <url>',
    '    <loc>https://art.pcoloring.com/terms-of-service</loc>',
    `    <lastmod>${date}</lastmod>`,
    '  </url>',
  ];


  // details
  let detailsXml = [];
  const cursor = await models.Art
    .find({ status: 9000 })
    .select('name title')
    .sort({ publishTime: -1 }).cursor();  // 使用cursor，避免一次查询太多记录内存受不了
  // 遍历游标中的每个文档
  for await (const doc of cursor) {
    detailsXml = detailsXml.concat([
      '  <url>',
      `    <loc>https://art.pcoloring.com/coloring-page/${doc._id}</loc>`,
      `    <lastmod>${date}</lastmod>`,
      '  </url>',
    ]);
  }

  let endXml = ['</urlset>'];

  let sitemapXml = [...commonXml, ...detailsXml, ...endXml];

  let sitemapXmlStr = sitemapXml.join('\n');

  fs.writeFileSync(sitemapTempPath, sitemapXmlStr);  // 先写入临时文件
  fs.renameSync(sitemapTempPath, sitemapPath); // 再重命名

  console.log('生成sitemap成功');
}

function run() {
  generateSitemap();
}

module.exports = { run }


if (require.main == module) {
  run();
}