我正在尝试使用FormData通过AJAX将数据发送到PHP脚本。 输入类型文本值似乎没有任何问题,但是当我尝试附加文件时,我得到错误TypeError:Value没有实现接口FormData。
我是FormData的新手,但我在网上搜索过,找不到关于此错误的任何文档。
以下是表格:
<form id="item_form" class="item_form" enctype="multipart/form-data">
<div class="">
<label for="emp_photos">photos</label>
<input id="emp_photos" class="inputText" type="file" value="" name="emp_photos">
</div>
</form>
这里是Javascript:
var formData = new FormData();
formData.append('photos', $('#emp_photos').files[0]);
这是我在firebug中遇到的错误:
TypeError: Value does not implement interface FormData.
...igger("ajaxComplete",[N,p]),--b.active||b.event.trigger("ajaxStop")))}return N},...
jquery....min.js (line 5)
我在这里做错了什么?
编辑:ajax部分
$.ajax({
type: 'POST',
url: '";
echo $_SESSION["url_base"];
echo "operations/add_employes',
data: formData,
xhr: function() { // custom xhr
myXhr = $.ajaxSettings.xhr();
if(myXhr.upload) { // check if upload property exists
myXhr.upload.addEventListener('progress',progressHandlingFunction, false); // for handling the progress of the upload
}
return myXhr;
},
success: function(msg) {/*...*/}
});
答案 0 :(得分:2)
var inputs = $("input[type=file]"),
files = [];
// jquery or javascript have a slightly different notation
// it's either accessing functions () or arrays [] depending on which object you're holding at the moment
for (var i = 0; i < inputs.length; i++){
files.push(inputs.eq(i).prop("files")[0]);
//files.push(inputs[i].files[0]);
//filename = inputs[i].files[0].name;
//filesize = inputs[i].files[0].size;
}
if (formdata) {
// you can use the array notation of your input's `name` attribute here
formdata.append("emp_photos[]", files);
}