Javascript Node.js和Express：如何通过“for loop”创建许多app.get调用？

在我的server.js中，我试图循环遍历具有不同URL的数组，并将这些URL用于app.get请求函数

这是我的密码：

让articleUrlArray=['https://techcrunch.com/2018/05/19/shared-housing-startups-are-taking-off/', 'https://techcrunch.com/2018/05/19/shared-housing-startups-are-taking-off/', 'https://techcrunch.com/2018/05/19/my-data-request-lists-guides-to-get-data-about-you/', 'https://techcrunch.com/2018/05/19/siempos-new-app-will-break-your-smartphone-addiction/', 'https://techcrunch.com/2018/05/19/la-belle-vie-wants-to-compete-with-amazon-prime-now-in-paris/', 'https://techcrunch.com/2018/05/19/apple-started-paying-15-billion-european-tax-fine/', 'https://techcrunch.com/2018/05/19/original-content-dear-white-people/', 'https://techcrunch.com/2018/05/19/meet-the-judges-for-the-tc-startup-battlefield-europe-at-vivatech/', 'https://techcrunch.com/2018/05/18/nasas-newest-planet-hunting-satellite-takes-a-stellar-first-test-image/', 'https://techcrunch.com/video-article/turning-your-toys-into-robots-with-circuit-cubes/', 'https://techcrunch.com/2018/05/18/does-googles-duplex-violate-two-party-consent-laws/' ]; forvar i=0；i50{ techCrunchNewsItems.push{ bodyOne:$'.article content'.children'p'.eq0.text }; }否则{ techCrunchNewsItems.push{ bodyOne:$'.article content'.children'p'.eq0.text， bodyTwo:$'.article content'.children'p'.eq1.text }; } 数据=techCrunchNewsItems； res.sendJSON.stringifydata； }; } }

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这里真正发生的事情是，我使用一个函数带来一系列承诺，当所有承诺都得到解决时，然后用字符串化的对象数组响应请求。我自由地实现了箭头函数和常量。

您应该在app.get'/news/news desc'，functionreq，res{…}中执行循环，因为请求需要选择一种方法在循环中处理它。要么使用异步库，要么使用请求的Promise变量。那么您正在尝试获取每个文章URL的正文？@ionizer是的，我正在尝试获取每个文章URL的正文。您知道如何解决此问题吗？非常感谢您的回答！您的答案肯定会在articleUrlArray中循环，但它不会输出我想要的内容。我知道您已经创建了checkBody函数并输出bodyOne或bodyOne&bodyTwo。但我不明白。我附上了我得到的截图。你能告诉我出了什么问题吗？试着用这个代替报税表，好吗？{bodyOne}：{bodyOne，bodyTwo}，我没有函数请求的完整实现，所以我在假设。这会给你带来物品。谢谢你的回复。我尝试了你的解决方案，但我得到一个错误，说，响应不是一个函数。你知道如何解决这个问题吗？我更新了getArticle和checkBody函数，让它们有自己的承诺，看看我的新答案，我不想这样做，而是保持原来的功能，但我真的需要知道完整的实现，告诉我这是否可行。我很高兴听到这个消息！

const articleUrlArray = [
    'https://techcrunch.com/2018/05/19/shared-housing-startups-are-taking-off/',
    'https://techcrunch.com/2018/05/19/shared-housing-startups-are-taking-off/',
    'https://techcrunch.com/2018/05/19/my-data-request-lists-guides-to-get-data-about-you/',
    'https://techcrunch.com/2018/05/19/siempos-new-app-will-break-your-smartphone-addiction/',
    'https://techcrunch.com/2018/05/19/la-belle-vie-wants-to-compete-with-amazon-prime-now-in-paris/',
    'https://techcrunch.com/2018/05/19/apple-started-paying-15-billion-european-tax-fine/',
    'https://techcrunch.com/2018/05/19/original-content-dear-white-people/',
    'https://techcrunch.com/2018/05/19/meet-the-judges-for-the-tc-startup-battlefield-europe-at-vivatech/',
    'https://techcrunch.com/2018/05/18/nasas-newest-planet-hunting-satellite-takes-a-stellar-first-test-image/',
    'https://techcrunch.com/video-article/turning-your-toys-into-robots-with-circuit-cubes/',
    'https://techcrunch.com/2018/05/18/does-googles-duplex-violate-two-party-consent-laws/'
];

const checkBody = res => (err, response, html) => {
    const $ = cheerio.load(html);
    const articleContent = $('.article-content').children('p')
    const bodyOne = articleContent.eq(0).text()
    const bodyTwo = articleContent.eq(1).text()
    const isExtensive = bodyOne.split(' ').length > 50
    res(isExtensive ? { bodyOne } : { bodyOne, bodyTwo })
}

const getArticle = article => new Promise(res => request(article, checkBody(res)))

app.get('/news/news-desc', (req, res) => {
    Promise.all(articleUrlArray.map(getArticle)).then(data => res.send(JSON.stringify(data)))
})