javascript - Ajax 发布 FormData 和表单

Question

我有这个表格:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"> </script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css">


<div class='col-sm-6' style="padding-left:0px;" >
    <form action="/main/" method="post" id="my_form" enctype="multipart/form-data">
      {% csrf_token %}
      <br>

      <div> <input type="text" name="description" id="id_description" /> </div>
      <div> <input type="file" name="image" id="id_image" /> </div>


      <button type="submit" disabled style="display: none" aria-hidden="true"></button>
      <input class="btn btn-success" type="submit" name="submit" value="Gem" />
    </form>
</div>

这样就成功发送了表单，并且在服务器端是有效的。但是我无法从服务器上的表单访问图像。

<script>
    var frm = $('#my_form');
    frm.submit(function (e) {
        e.preventDefault(e);
        $.ajax({
            async: true,
            type: frm.attr('method'),
            url: frm.attr('action'),
            data: frm.serialize(),
            success: function (data) {
                console.log("success")
            },
            error: function(request, status, error) {
                console.log("error")
            }
       });
    });
</script>

此解决方案发送带有图像文件的 FormData，但它不包含其他表单数据，并且该表单在服务器端无效:

<script type="text/javascript">
    var frm = $('#my_form');
    frm.submit(function (e) {
        e.preventDefault(e);

        var formData = new FormData();
        formData.append(
            "image",
            document.getElementById("id_image").files[0]
        );

        $.ajax({
            async: true,
            type: frm.attr('method'),
            url: frm.attr('action'),
            data: formData,
            cache: false,
            processData: false,
            contentType: false,
            type: 'POST',

            success: function (data) {
                console.log("success")
            },
            error: function(request, status, error) {
                console.log("error")
            }
       });
   });


</script>

有没有办法同时发送文件和另一个表单dara？

Answer 1

尝试将 this 传递给 FormData 此外，您设置了两次 type。

var frm = $('#my_form');
frm.submit(function (e) {
  e.preventDefault(e);

  var formData = new FormData(this);

  $.ajax({
    async: true,
    type: frm.attr('method'),
    url: frm.attr('action'),
    data: formData,
    cache: false,
    processData: false,
    contentType: false,

    success: function (data) {
      console.log("success")
    },
    error: function(request, status, error) {
      console.log("error")
    }
  });
});