在ajax中提交多部分表单？

问题描述

我有以下javascript。

$("#CsvForm").unbind('submit').on('submit',function( event ){
    var formData = new FormData($(this[0]));
    $.ajax({
        url: 'some url',
        data: formData,
        processData: false,
        contentType: false,
        type: 'POST',
        success: function(json){
            console.log('ajax do something');
            ajax = true;
        },
        error: function(data) {
             console.log("failed");
        }
    });
});

我的html表单如下所示：

<form action="/teams/16/import_players" method="POST" id="CsvForm" enctype="multipart/form-data"><input type="hidden" name="csrfmiddlewaretoken" value="E2lRbOD6hRQixJBNfsDL3Wamo4VzVnDj">
    <div class="modal-body">
      <p><label for="id_csv_file">Upload CSV File:</label> <input class="form-control input-lg" id="id_csv_file" name="csv_file" placeholder="First Name *" required="true" type="file"></p>
    </div>
    <div class="modal-footer ">
      <button type="submit" class="btn btn-warning btn-lg" style="width: 100%;">
        Upload
      </button>
    </div>
</form>

问题是我的formData返回并且对象为空，并且提交时出现了JavaScript异常：

“未捕获的TypeError：非法调用”

请帮助。

这可能会解决您的问题：

$("#CsvForm").unbind('submit').on('submit',function( event ){
var formData = new FormData();
formData.append("nameUsedOnServer",  document.getElementById("id_csv_file").files[0]);
$.ajax({
    url: 'some url',
    data: formData,
    processData: false,
    contentType: "multipart/form-data",
    type: 'POST',
    success: function(json){
        console.log('ajax do something');
        ajax = true;
    },
    error: function(data) {
         console.log("failed");
    }
});

}）;