​x
 
<!DOCTYPE html>
<html>
<body>
​
<h1>使用 XMLHttpRequest 获取 JSON 文件</h1>
<p id="demo"></p>
​
<script>
const xmlhttp = new XMLHttpRequest();
xmlhttp.onload = function() {
  const myObj = JSON.parse(this.responseText);
  document.getElementById("demo").innerHTML = myObj.name;
}
xmlhttp.open("GET", "/demo/js/json.txt");
xmlhttp.send();
</script>
​
</body>
</html>
​