[英]pulling data from JSON file to HTML with Javascript
我正在尝试从 JSON 文件中提取数据以放在我的网站上,我遵循了本指南: https : //developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/JSON但我的页。
我把我的代码放在这里: https : //codepen.io/anon/pen/mMGjxK
我的 HTML:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Sandbox</title>
</head>
<body>
This is a test.
<section>
</section>
<script src="script.js"></script>
</body>
</html>
我的JS:
var section = document.querySelector('section');
var retrieveData = 'https://raw.githubusercontent.com/okayauco/flashcards/master/sandbox/vocab-sandbox.json';
var request = new XMLHttpRequest();
request.open('GET', retrieveData);
request.responseType = 'JSON';
request.send();
request.onload = function() {
var vocabWords = request.response;
showWords(vocabWords);
}
function showWords(jsonObj) {
var words = jsonObj['vocabulary'];
for (var i = 0; i < words.length; i++) {
var theArticle = document.createElement('article');
var inEnglish = document.createElement('p');
var inRomaji = document.createElement('p');
var inHiragana = document.createElement('p');
var inKanji = document.createElement('p');
inEnglish.textContent = words[i].English;
inRomaji.textContent = words[i].Romaji;
inHiragana.textContent = words[i].Hiragana;
inKanji.textContent = words[i].Kanji;
}
theArticle.appendChild(inEnglish);
theArticle.appendChild(inRomaji);
theArticle.appendChild(inHiragana);
theArticle.appendChild(inKanji);
section.appendChild(theArticle);
}
我的JSON:
{"vocabulary":[
{"English":"one", "Romaji":"ichi", "Hiragana":"ぃち", "Kanji":"⼀" },
{"English":"two", "Romaji":"ni", "Hiragana":"に", "Kanji":"ニ" },
{"English":"three", "Romaji":"san", "Hiragana":"さん", "Kanji":"三" },
{"English":"four", "Romaji":"yon", "Hiragana":"よん", "Kanji":"四" }
]}
这是您的 JSON。 删除最后一个逗号。
{ "vocabulary": [{ "English": "one", "Romaji": "ichi", "Hiragana": "ぃち", "Kanji": "⼀" }, { "English": "two", "Romaji": "ni", "Hiragana": "に", "Kanji": "ニ" }, { "English": "three", "Romaji": "san", "Hiragana": "さん", "Kanji": "三" }, { "English": "four", "Romaji": "yon", "Hiragana": "よん", "Kanji": "四" } ] }
首先,您的 json 无效(最后一个逗号),但下面的代码用于使用 XMLHttpRequest 获取内容。 您应该使用有效的 json 源并重试。 您可以通过https://jsonlint.com/验证您的 json
其次,您将 appendChild 置于 for 循环之外。 那么它是不可附加的。 检查我的固定代码。
var section = document.querySelector('section'); var xhttp = new XMLHttpRequest(); xhttp.responseType = 'JSON'; xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { var vocabWords = this.response; document.getElementById("demo").innerHTML = vocabWords; showWords(JSON.parse(vocabWords.replace('"四" },', '"四" }'))); // <= This should work with a valid json format. } }; xhttp.open("GET", "https://raw.githubusercontent.com/okayauco/flashcards/master/sandbox/vocab-sandbox.json", true); xhttp.send(); function showWords(jsonObj) { var words = jsonObj['vocabulary']; for (var i = 0; i < words.length; i++) { var theArticle = document.createElement('article'); var inEnglish = document.createElement('p'); var inRomaji = document.createElement('p'); var inHiragana = document.createElement('p'); var inKanji = document.createElement('p'); inEnglish.textContent = words[i].English; inRomaji.textContent = words[i].Romaji; inHiragana.textContent = words[i].Hiragana; inKanji.textContent = words[i].Kanji; theArticle.appendChild(inEnglish); theArticle.appendChild(inRomaji); theArticle.appendChild(inHiragana); theArticle.appendChild(inKanji); section.appendChild(theArticle); }; };
This is a test. <section> </section> <div id="demo"></div>
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.