Django-ajax: CSRF 验证失败。请求中止

Question

我正在使用 Django 服务器端表单在数据库中保存详细信息。

<form id="form_save_file" enctype="multipart/form-data">
{% csrf_token %}
      <label class="control-label col-md-4">File:</label>
        <div class="col-md-8">
            {{form.fa_file}}
        </div>
      <label class="control-label col-md-4">Name:</label>
        <div class="col-md-8">
            {{form.name}}
        </div>
</form>

我正在使用 ajax 来 post 请求。

$("#form_save_file").submit(function(e) {
        $.ajax({

           type: "POST",
           url: '/url/',
           data: $("#form_save_file").serialize(),
           contentType: false, 
           processData: false,
           success: function(data){}
});

我在 settings.py

中包含了中间件类

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'request.middleware.RequestMiddleware'
)

当我在 ajax 请求中删除 contentType 和 processData 时，request.FILES 在 views.py 中为空，其他一切正常。

Answer 1

contentType option to false is used for multipart/form-data forms that pass files.

When one sets the contentType option to false, it forces jQuery not to add a Content-Type header, otherwise, the boundary string will be missing from it. Also, when submitting files via multi-part/form one must leave the processData flag set to false, otherwise, jQuery will try to convert your FormData into a string, which will fail.

To try and fix your issue:

You are using jQuery's .serialize() method which creates a text string in standard URL-encoded notation.

You need to pass un-encoded data when using "contentType: false".

Try using "new FormData" instead of .serialize():

来源：

修改后的代码：

$("#form_save_file").submit(function(e) {

    e.preventDefault();

    var $this = $(this);
    var postURL = '/url/';
    var formData = new FormData(this);


    $.ajax({
           type: "POST",
           url: postURL,
           data: formData,
           mimeType: "multipart/form-data",
           contentType: false,
           cache: false,
           processData: false
    })
    .done(function(response) {
        // Do something if POST is successful
    })
    .fail(function() {
        // Do something if POST is unsuccessful
    })

})

Answer 2

使用 @csrf_exempt 装饰器在特定视图上禁用 csrf，并使用随机 number/string

构建自定义安全性

Django-ajax: CSRF 验证失败。请求中止

Django-ajax: CSRF verification failed. Request aborted

ajax

django

ajaxform