你可以通过捕捉dropzone中的'sending'事件来修改formData。

dropZone.on('sending', function(data, xhr, formData){
        formData.append('fieldname', 'value');
});

我有一个更自动化的解决方案。

HTML:

<form role="form" enctype="multipart/form-data" action="{{ $url }}" method="{{ $method }}">
    {{ csrf_field() }}

    <!-- You can add extra form fields here -->

    <input hidden id="file" name="file"/>

    <!-- You can add extra form fields here -->

    <div class="dropzone dropzone-file-area" id="fileUpload">
        <div class="dz-default dz-message">
            <h3 class="sbold">Drop files here to upload</h3>
            <span>You can also click to open file browser</span>
        </div>
    </div>

    <!-- You can add extra form fields here -->

    <button type="submit">Submit</button>
</form>

JavaScript:

Dropzone.options.fileUpload = {
    url: 'blackHole.php',
    addRemoveLinks: true,
    accept: function(file) {
        let fileReader = new FileReader();

        fileReader.readAsDataURL(file);
        fileReader.onloadend = function() {

            let content = fileReader.result;
            $('#file').val(content);
            file.previewElement.classList.add("dz-success");
        }
        file.previewElement.classList.add("dz-complete");
    }
}

Laravel:

// Get file content
$file = base64_decode(request('file'));

没有必要禁用DropZone发现和正常的表单提交将能够通过标准表单序列化发送任何其他表单字段的文件。

该机制在处理文件时将文件内容存储为隐藏输入字段中的base64字符串。您可以通过标准的base64_decode()方法将其解码回PHP中的二进制字符串。

我不知道这种方法是否会受到大文件的影响，但它适用于~40MB的文件。

这是我的例子，是基于Django + Dropzone。视图有选择(必需的)和提交。

<form action="/share/upload/" class="dropzone" id="uploadDropzone">
    {% csrf_token %}
        <select id="warehouse" required>
            <option value="">Select a warehouse</option>
                {% for warehouse in warehouses %}
                    <option value={{forloop.counter0}}>{{warehouse.warehousename}}</option>
                {% endfor %}
        </select>
    <button id="submit-upload btn" type="submit">upload</button>
</form>

<script src="{% static '/js/libs/dropzone/dropzone.js' %}"></script>
<script src="https://code.jquery.com/jquery-3.1.0.min.js"></script>
<script>
    var filename = "";

    Dropzone.options.uploadDropzone = {
        paramName: "file",  // The name that will be used to transfer the file,
        maxFilesize: 250,   // MB
        autoProcessQueue: false,
        accept: function(file, done) {
            console.log(file.name);
            filename = file.name;
            done();    // !Very important
        },
        init: function() {
            var myDropzone = this,
            submitButton = document.querySelector("[type=submit]");

            submitButton.addEventListener('click', function(e) {
                var isValid = document.querySelector('#warehouse').reportValidity();
                e.preventDefault();
                e.stopPropagation();
                if (isValid)
                    myDropzone.processQueue();
            });

            this.on('sendingmultiple', function(data, xhr, formData) {
                formData.append("warehouse", jQuery("#warehouse option:selected").val());
            });
        }
    };
</script>

我想在这里提供一个答案，因为我也面临着同样的问题-我们希望$_FILES元素作为另一个表单的一部分可用。我的答案是基于@mrtnmgs，但注意到这个问题的评论。

首先:Dropzone通过ajax发布数据

因为你使用了formData。附加选项仍然意味着你必须处理用户体验操作——也就是说，这一切都发生在幕后，而不是一个典型的表单post。数据被发送到url参数。

其次:如果您因此想要模拟表单发布，则需要存储发布的数据

这需要服务器端代码将你的$_POST或$_FILES存储在一个会话中，该会话可用于用户在另一个页面加载，因为用户不会转到收到发布数据的页面。

第三:您需要将用户重定向到处理该数据的页面

现在你已经发布了你的数据，存储在一个会话中，你需要在一个额外的页面中为用户显示/操作它。您还需要将用户发送到该页面。

举个例子:

[Dropzone code:使用Jquery]

$('#dropArea').dropzone({
    url:        base_url+'admin/saveProject',
    maxFiles:   1,
    uploadMultiple: false,
    autoProcessQueue:false,
    addRemoveLinks: true,
    init:       function(){
        dzClosure = this;

        $('#projectActionBtn').on('click',function(e) {
            dzClosure.processQueue(); /* My button isn't a submit */
        });

        // My project only has 1 file hence not sendingmultiple
        dzClosure.on('sending', function(data, xhr, formData) {
            $('#add_user input[type="text"],#add_user textarea').each(function(){
                formData.append($(this).attr('name'),$(this).val());
            })
        });

        dzClosure.on('complete',function(){
            window.location.href = base_url+'admin/saveProject';
        })
    },
});

试试这个

<div class="dropzone dz-clickable" id="myDrop">
  <div class="dz-default dz-message" data-dz-message="">
    <span>Drop files here to upload</span>
  </div>
</div>

JS

<script>
    Dropzone.autoDiscover = false;
    Dropzone.default.autoDiscover=false;
    $("div#myDrop").dropzone({
        url: "/file/post",
    });
</script>

我遇到了完全相同的问题，发现瓦兰·西纳伊的答案是唯一真正解决了最初问题的答案。这个答案可以简化，所以这里有一个更简单的版本。

步骤如下:

Create a normal form (don't forget the method and enctype args since this is not handled by dropzone anymore). Put a div inside with the class="dropzone" (that's how Dropzone attaches to it) and id="yourDropzoneName" (used to change the options). Set Dropzone's options, to set the url where the form and files will be posted, deactivate autoProcessQueue (so it only happens when user presses 'submit') and allow multiple uploads (if you need it). Set the init function to use Dropzone instead of the default behavior when the submit button is clicked. Still in the init function, use the "sendingmultiple" event handler to send the form data along wih the files.

瞧!现在，您可以像使用普通表单一样在$_POST和$_FILES中检索数据(在本例中，这将发生在upload.php中)

HTML

<form action="upload.php" enctype="multipart/form-data" method="POST">
    <input type="text" id ="firstname" name ="firstname" />
    <input type="text" id ="lastname" name ="lastname" />
    <div class="dropzone" id="myDropzone"></div>
    <button type="submit" id="submit-all"> upload </button>
</form>

JS

Dropzone.options.myDropzone= {
    url: 'upload.php',
    autoProcessQueue: false,
    uploadMultiple: true,
    parallelUploads: 5,
    maxFiles: 5,
    maxFilesize: 1,
    acceptedFiles: 'image/*',
    addRemoveLinks: true,
    init: function() {
        dzClosure = this; // Makes sure that 'this' is understood inside the functions below.

        // for Dropzone to process the queue (instead of default form behavior):
        document.getElementById("submit-all").addEventListener("click", function(e) {
            // Make sure that the form isn't actually being sent.
            e.preventDefault();
            e.stopPropagation();
            dzClosure.processQueue();
        });

        //send all the form data along with the files:
        this.on("sendingmultiple", function(data, xhr, formData) {
            formData.append("firstname", jQuery("#firstname").val());
            formData.append("lastname", jQuery("#lastname").val());
        });
    }
}