使用Xhr 发起GET数据请求

思路：

1.创建xhr

2.调用open

3.调用send()

4.监听 onreadystatechange

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../jquery.min.js"></script>
</head>

<body>
    <script>
        //创建xhr
        var xhr = new XMLHttpRequest()
        //调用open 函数
        xhr.open("GET", 'http://www.liulongbin.top:3006/api/getbooks')
        //调用send 函数
        xhr.send()
        //监听onreadystatechenge
        xhr.onreadystatechange = function () {
            if (xhr.readyState == 4 && xhr.status == 200) {
                console.log(xhr.responseText)
            }
        }
    </script>
</body>

</html>

版权声明：本文为weixin_59519449原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。