文件上传在 Bootstrap 选项卡中不起作用

Question

我正在开发一个网页，用户需要在其中上传文件。我正在使用位于 \input type="file"\ 元素之上的通用技术，使我能够更好地设置它的样式。

在我将它放入 Bootstrap 4 选项卡之前，它工作正常，在该选项卡中元素似乎停止接收它的 Click 事件。

为了演示这一点，我有一个使用 Jquery 和 Bootstrap 的 HTML 页面。我在选项卡的内部和外部都有类似的元素。当我单击选项卡外元素上的 'Browse' 按钮时，它按预期工作。但是，当我单击选项卡内的“浏览”按钮时，没有任何反应。您需要 select "tab 2" 然后 "tab 1" 才能显示第一个选项卡的内容。

Bootstrap 选项卡中一定有东西阻止了它。

任何人都可以指出我需要使用制表符的正确方向吗？

<!DOCTYPE html>
<title>File Upload</title>

<!-- Latest compiled and minified Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<style>
    body {
        padding-top: 1em;
    }
</style> 

<div class="container">
    <div class="row">
        <ul class="nav nav-tabs">
            <li class="nav-item">
                <a class="nav-link active" id="tab1" data-toggle="tab" role="tab" aria-controls="tab1" aria-selected="true" href="#tab1Content">Tab 1</a>
            </li>
            <li>
                <a class="nav-link" id="tab2" data-toggle="tab" role="tab" aria-controls="tab2" aria-selected="false" href="#tab2Content">Tab 2</a>
            </li>
        </ul>
        <div class="tab-content" id="tabContent">
            <div class="tab-pane fade show " id="tab1Content" data-toggle="tab" role="tabpanel" aria-labelledby="tab1">
                <div class="row pb-5">
                    <div class="col-md-12">
                        <div class="input-group">
                            <p>Inside of tab</p>
                            <input type="file" id="fileUploader" name="fileUploader" style="visibility:hidden;" />
                            <input class="form-control input-xlarge" type="text" id="fileName" value="Choose file">

                            <div class="input-group-append">
                                <button id="browseButton" name="browseButton" class="btn btn-success input-group-text">Browse</button>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div class="tab-pane fade" id="tab2Content" role="tabpanel" aria-labelledby="tab2">
            </div>
        </div>
    </div>
</div>

<div class="container">
    <div class="row pb-5">
        <div class="col-md-12">
            <div class="input-group">
                <p>Outside of tab</p>
                <input type="file" id="fileUploader2" name="fileUploader2" style="visibility:hidden;" />
                <input class="form-control input-xlarge" type="text" id="fileName2" value="Choose file">

                <div class="input-group-append">
                    <button id="browseButton2" name="browseButton2" class="btn btn-success input-group-text">Browse</button>
                </div>
            </div>
        </div>
    </div>
</div>


    
<!-- jQuery library -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>

<!-- Popper -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>

<!-- Latest compiled and minified Bootstrap JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

<script>
    $(document).ready(function () {        

        $('#browseButton').on('click', function () {
            $('#fileUploader').click();
        });

        $('#fileUploader').change(function () {
            $('#fileName').val($(this).val());
        });

        $('#browseButton2').on('click', function () {
            $('#fileUploader2').click();
        });

        $('#fileUploader2').change(function () {
            $('#fileName2').val($(this).val());
        });

    });
</script>

Answer 1

请检查下面的代码片段。可能是您的 HTML 标签没有正确关闭。

<!DOCTYPE html>
<title>File Upload</title>

<!-- Latest compiled and minified Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<style>
    body {
        padding-top: 1em;
    }
</style> 

<div class="container">
    <div class="row">
        <ul class="nav nav-tabs" id="myTab" role="tablist">
          <li class="nav-item">
            <a class="nav-link active" id="home-tab" data-toggle="tab" href="#home" role="tab" aria-controls="home" aria-selected="true">Home</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" id="profile-tab" data-toggle="tab" href="#profile" role="tab" aria-controls="profile" aria-selected="false">Profile</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" id="contact-tab" data-toggle="tab" href="#contact" role="tab" aria-controls="contact" aria-selected="false">Contact</a>
          </li>
        </ul>
        <div class="tab-content" id="myTabContent">
            <div class="tab-pane fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">
                Et et consectetur ipsum labore excepteur est proident excepteur ad velit occaecat qui minim occaecat veniam. Fugiat veniam incididunt anim aliqua enim pariatur veniam sunt est aute sit dolor anim. Velit non irure adipisicing aliqua ullamco irure incididunt irure non esse consectetur nostrud minim non minim occaecat. Amet duis do nisi duis veniam non est eiusmod tempor incididunt tempor dolor ipsum in qui sit. Exercitation mollit sit culpa nisi culpa non adipisicing reprehenderit do dolore. Duis reprehenderit occaecat anim ullamco ad duis occaecat ex.
                <p>Inside of tab</p>
                <input type="file" id="fileUploader" name="fileUploader" style="visibility:hidden;" />
                <input class="form-control input-xlarge" type="text" id="fileName" name="fileName" value="Choose file">

                <div class="input-group-append">
                    <button id="browseButton" name="browseButton" class="btn btn-success input-group-text">Browse</button>
                </div>
            </div>
          <div class="tab-pane fade" id="profile" role="tabpanel" aria-labelledby="profile-tab">
            Nulla est ullamco ut irure incididunt nulla Lorem Lorem minim irure officia enim reprehenderit. Magna duis labore cillum sint adipisicing exercitation ipsum. Nostrud ut anim non exercitation velit laboris fugiat cupidatat. Commodo esse dolore fugiat sint velit ullamco magna consequat voluptate minim amet aliquip ipsum aute laboris nisi. Labore labore veniam irure irure ipsum pariatur mollit magna in cupidatat dolore magna irure esse tempor ad mollit. Dolore commodo nulla minim amet ipsum officia consectetur amet ullamco voluptate nisi commodo ea sit eu.
          </div>
          <div class="tab-pane fade" id="contact" role="tabpanel" aria-labelledby="contact-tab">
            Sint sit mollit irure quis est nostrud cillum consequat Lorem esse do quis dolor esse fugiat sunt do. Eu ex commodo veniam Lorem aliquip laborum occaecat qui Lorem esse mollit dolore anim cupidatat. Deserunt officia id Lorem nostrud aute id commodo elit eiusmod enim irure amet eiusmod qui reprehenderit nostrud tempor. Fugiat ipsum excepteur in aliqua non et quis aliquip ad irure in labore cillum elit enim. Consequat aliquip incididunt ipsum et minim laborum laborum laborum et cillum labore. Deserunt adipisicing cillum id nulla minim nostrud labore eiusmod et amet. Laboris consequat consequat commodo non ut non aliquip reprehenderit nulla anim occaecat. Sunt sit ullamco reprehenderit irure ea ullamco Lorem aute nostrud magna.
          </div>
        </div>
    </div>
</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div class="container">
    <div class="row pb-5">
        <div class="col-md-12">
            <div class="input-group">
                <p>Outside of tab</p>
                <input type="file" id="fileUploader2" name="fileUploader2" style="visibility:hidden;" />
                <input class="form-control input-xlarge" type="text" id="fileName2" value="Choose file">

                <div class="input-group-append">
                    <button id="browseButton2" name="browseButton2" class="btn btn-success input-group-text">Browse</button>
                </div>
            </div>
        </div>
    </div>
</div>



<!-- jQuery library -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>

<!-- Popper -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>

<!-- Latest compiled and minified Bootstrap JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

<script>
    $(document).ready(function () {        

        $('#browseButton').on('click', function () {
            $('#fileUploader').click();
        });

        $('#fileUploader').change(function () {
            $('#fileName').val($(this).val());
        });

        $('#browseButton2').on('click', function () {
            $('#fileUploader2').click();
        });

        $('#fileUploader2').change(function () {
            $('#fileName2').val($(this).val());
        });

    });
</script>

文件上传在 Bootstrap 选项卡中不起作用

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