如何使用jQuery Dropzone插件上传文件

jQuery有许多类型的文件上传插件，用于上传各种类型的文件，并可以在后端进一步处理。通常情况下，PHP被广泛用作后台语言与ajax调用。我们也有动态的jQuery插件，我们可以拖放文件。

一些文件上传器插件是。

Fine-Uploader
JQuery文件上传
Uploadify
Plupload
Formstone upload
Dropzone

还有很多。

CDN Link:

<script src=”https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.7.1/dropzone.min.js” integrity=”sha256-fegGeSK7Ez4lvniVEiz1nKMx9pYtlLwPNRPf6uc8d+8=” crossorigin=”anonymous”>
</script>

例子：下面的例子是使用Dropzone插件和代码所需的CDN库来实现的。

<!DOCTYPE html>
<html>
  
<head>
  
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content=
        "width=device-width, 
        initial-scale=1, shrink-to-fit=no">
  
    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href=
"https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
        integrity=
"sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T"
        crossorigin="anonymous">
  
    <!-- jQuery first, then Popper.js, 
        then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
        integrity=
"sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
        crossorigin="anonymous">
    </script>
      
    <script src=
"https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.7.1/dropzone.min.js"
        integrity="sha256-fegGeSK7Ez4lvniVEiz1nKMx9pYtlLwPNRPf6uc8d+8="
        crossorigin="anonymous">
    </script>
  
    <script src=
"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
        integrity=
"sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
        crossorigin="anonymous">
    </script>
  
    <script src=
"https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
        integrity=
"sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
        crossorigin="anonymous">
    </script>
  
    <style>
        body {
            padding: 2%;
        }
    </style>
</head>
  
<body>
    <form action="/file-upload" class="dropzone">
        <div class="fallback">
            <input name="file" type="file" multiple />
        </div>
    </form>
</body>
  
</html>