这里有另一种方法:在您的表单中添加一个div，类名为dropzone，并以编程方式实现dropzone。

HTML:

<div id="dZUpload" class="dropzone">
      <div class="dz-default dz-message"></div>
</div>

JQuery:

$(document).ready(function () {
    Dropzone.autoDiscover = false;
    $("#dZUpload").dropzone({
        url: "hn_SimpeFileUploader.ashx",
        addRemoveLinks: true,
        success: function (file, response) {
            var imgName = response;
            file.previewElement.classList.add("dz-success");
            console.log("Successfully uploaded :" + imgName);
        },
        error: function (file, response) {
            file.previewElement.classList.add("dz-error");
        }
    });
});

注意:禁用自动发现，否则Dropzone将尝试附加两次

为了在一个请求中提交所有文件和其他表单数据，您可以将Dropzone.js临时隐藏输入节点复制到您的表单中。你可以在adddedfiles事件处理程序中做到这一点:

var myDropzone = new Dropzone("myDivSelector", { url: "#", autoProcessQueue: false });
myDropzone.on("addedfiles", () => {
  // Input node with selected files. It will be removed from document shortly in order to
  // give user ability to choose another set of files.
  var usedInput = myDropzone.hiddenFileInput;
  // Append it to form after stack become empty, because if you append it earlier
  // it will be removed from its parent node by Dropzone.js.
  setTimeout(() => {
    // myForm - is form node that you want to submit.
    myForm.appendChild(usedInput);
    // Set some unique name in order to submit data.
    usedInput.name = "foo";
  }, 0);
});

显然，这是一种依赖于实现细节的变通方法。相关源代码。

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。

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());
        });
    }
}

更进一步，sqram说，Dropzone有一个额外的未记录的选项，“hiddenInputContainer”。您所要做的就是将此选项设置为您希望将隐藏文件字段附加到的表单的选择器。瞧!”。dz- hide -input”文件字段，Dropzone通常添加到主体神奇地移动到你的形式。没有改变Dropzone源代码。

现在，虽然这可以将Dropzone文件字段移动到表单中，但该字段没有名称。所以你需要添加:

_this.hiddenFileInput.setAttribute("name", "field_name[]");

在这行之后删除zone.js:

_this.hiddenFileInput = document.createElement("input");

大约在547行。