模态对话框和Ajax的简单应用

模态对话框，适应少量输入框，简单数据处理，example：登录窗口

新url：大量数据，大量操作

Form表单提交，页面会刷新

Ajax提交，页面不刷新

js实现页面跳转

location.href="url"

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>班级</title>
    <style>
        .hide{
            display: none;
        }
        .shadow{
            position: fixed;
            left: 0;
            top: 0;
            right: 0;
            bottom: 0;
            background-color: black;
            opacity: 0.5;
            z-index: 99;
        }
        .modal{
            position: fixed;
            z-index: 100;
            left: 50%;
            top: 50%;
            height: 300px;
            width: 400px;
            background-color: white;
            margin-left: -200px;
            margin-top: -100px;
        }
    </style>
</head>
<body>
    <h1>班级列表</h1>
    <div>
        <a href="/add_class/">添加</a>
        <button><a οnclick="showModal()">模态对话框添加</a></button>
    </div>
    <table>
        <thead>
            <tr>
                <td>ID</td>
                <td>班级名称</td>
                <td>操作</td>
            </tr>
        </thead>
        <tbody>
            {% for row in classes_list %}
            <tr>
                <td>{{ row.id }}</td>
                <td>{{ row.title }}</td>
                <td>
                    <a href="/edit_class/?id={{ row.id }}">编辑</a>
                    <a href="/del_class/?id={{ row.id }}">删除</a>
                </td>
            </tr>
            {% endfor %}
        </tbody>
    </table>


    <div id="shadow" class="shadow hide"></div>
    <div id="modal" class="modal hide">
            <p>
                班级名称:<input type="text" id="title" name="title"/>
                <input type="button" value="提交" οnclick="AjaxSend()">
                <input type="button" value="取消" οnclick="CancelModal()"><span id="errmsg"></span>
            </p>
    </div>
    <script src="/static/jquery-3.4.1.js"></script>
    <script>
        function showModal() {
            document.getElementById('shadow').classList.remove('hide')
            document.getElementById('modal').classList.remove('hide')
        }
        function CancelModal() {
            document.getElementById('shadow').classList.add('hide')
            document.getElementById('modal').classList.add('hide')
        }
        function AjaxSend() {
            $.ajax({
                url:'/modal_add_class/',
                type:'POST',
                data:{'title':$('#title').val()},
                success:function (data) {
                    console.log(data)
                    if(data=='ok'){
                        alert('添加成功！')
                        location.href="/classes/";
                    }else{
                        alert('添加失败！')
                        $('#errmsg').text(data);
                    }
                }
            })
        }
    </script>

</body>
</html>

呆马蓝

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模态对话框和Ajax的简单应用

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