javascript - 拖放区 : "No URL provided" and "Dropzone already attached."

Question

我正在使用 dropzone 和 jquery。我有这段代码:

  <div id="my-image">
    <!-- .......... -->
  </div>

和

  <script type="text/javascript">
    Dropzone.autoDiscover = false;

    $(document).ready(function() {
      var image_uploader = new Dropzone("#upload-image", {url: "/image_uploader", acceptedFiles : "image/*",
                                                          maxFiles: 1, maxFilesize: 1, autoDiscover: false});

      //.................

但是我有这两个错误:

//dropzone.js:712
Uncaught Error: No URL provided.
    at new Dropzone (dropzone.js:712)
    at Function.Dropzone.discover (dropzone.js:1641)
    at Dropzone._autoDiscoverFunction (dropzone.js:1923)
    at HTMLDocument.init (dropzone.js:1892)

和:

//jquery-3.3.1.min.js:2

Uncaught Error: Dropzone already attached.
  at new Dropzone (dropzone.js:699)
  at HTMLDocument.<anonymous> ((index):221)
  at l (jquery-3.3.1.min.js:2)
  at c (jquery-3.3.1.min.js:2)

它们为什么会出现？如何修复它们？

Answer 1

对于第一个错误，您必须在 $(document).ready(function (){}) 之前添加 Dropzone.autoDiscover = false;

对于第二个错误，我认为您声明了 Dropzopne.js 两次。