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封装ajax-get请求.html

<!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>
</head>

<body>
    <!-- <script>
        function ajax(opa) {
            let { type, url, success } = opa
            let xhr = new XMLHttpRequest()
            xhr.open(type, url)
            xhr.onload = function () {
                let res = JSON.parse(xhr.responseText)
                success(res)
            }
            xhr.send()
        }
        let option = {
            url: 'http://127.0.0.1:3001/getHeroList',
            type: 'get',
            success: function (arr) {
                console.log(arr);
            }
        }
        ajax(option)
    </script> -->
    <!-- <script>
        function ajax(opa) {
            let { type, url, success, data = {} } = opa
            let xhr = new XMLHttpRequest()
            let usp = new URLSearchParams(data)
            let query = '?' + usp.toString()
            xhr.open(type, url + query)
            xhr.onload = function () {
                let res = JSON.parse(xhr.responseText)
                success(res)
            }
            xhr.send()
        }
        let option = {
            url: 'http://127.0.0.1:3001/getHeroList',
            type: 'get',
            data: { heroName: '黄棵' },
            success: function (arr) {
                console.log(arr);
            }
        }
        ajax(option)
    </script> -->
    <script>
        function ajax(opa) {
            let { type, url, success, data = {} } = opa
            let xhr = new XMLHttpRequest()
            let ooo = new URLSearchParams(data)
            let query = ooo.toString()
            xhr.onload = function () {
                let are = JSON.parse(xhr.responseText)
                success(are)
            }
            if (type === 'get') {
                xhr.open(type, url + '?' + query)
                xhr.send()
            } else {
                xhr.open(type, url)
                xhr.send(query)
            }
        }
        //get请求
        let option = {
            url: 'http://127.0.0.1:3001/getHeroList',
            type: 'get',
            data: { heroName: '何拾兴' },
            success: function (arr) {
                console.log(arr);
            }
        }
        //post请求
        // let option = {
        //     url: 'http://127.0.0.1:3001/addHero',
        //     type: 'post',
        //     data: {
        //         name: '黄棵', gender: '女', img: '1212121212121'
        //     },
        //     success: function (arr) {
        //         console.log(arr);
        //     }
        // }
        ajax(option)
    </script>
</body>

</html>