Jquery ajax FormData 始终为空

Question

我想用ajax发送一些数据到php文件。我创建了一个 FormData，然后将要发送的所有数据附加到其中。我在控制台中没有收到任何错误消息。

我的问题是，formdata总是空的，php文件也没有获得任何数据。

形式：

<div class="tab-pane show" id="tab5">
<form id="AllapotForm" class="form-horizontal" method="post" enctype="multipart/form-data">
<table id="products" class="table table-hover">
<thead>
<tr class="tr_bold">
<!--width="33.3%"-->
<td class="left" >Létrehozva</td>
<td class="left" >Állapot</td>
<td class="left" >A megrendelő értesítve email-ben</td>
<td class="left" >Megjegyzés</td>
</tr>
</thead>
<tbody id="allapotok">
<?php
$get_r_allaptok = mysqli_query($kapcs, 
"
SELECT 
rendeles_allapot.*, 
rendeles_allapotok.rendeles_allapotok_nev
FROM rendeles_allapot 
LEFT JOIN rendeles_allapotok ON rendeles_allapot.allapot_allapot_id = rendeles_allapotok.rendeles_allapotok_id
WHERE allapot_rendeles_id = '$id' ORDER BY allapot_id ASC
")
or die(mysqli_error($kapcs));
if(mysqli_num_rows($get_r_allaptok) > 0 )
{
while($r_allapot = mysqli_fetch_assoc($get_r_allaptok))
{
if($r_allapot['allapot_notify'] == 0 ) { $ertesitve = "Nem"; }
if($r_allapot['allapot_notify'] == 1 ) { $ertesitve = "Igen"; }
echo '<tr>
<td class="left">'.$r_allapot['allapot_datetime'].'</td>
<td class="left">'.$r_allapot['rendeles_allapotok_nev'].'</td>
<td class="left">'.$ertesitve.'</td>
<td class="left">'.$r_allapot['allapot_comment'].'</td>
</tr>';
}
}
?>
</tbody>
</table>
<img src="<?php echo $host; ?>/images/assets/preloader.gif" id="preloaderImage2" style="display:none" class="img-responsive" style="margin:10px auto;">
<div class="form-group row">
<label class="control-label col-md-2">Állapot:</label>
<div class="col-md-2">
<select name="allapot" id="allapot" class="input input-select form-control">
<?php
$check_allapot = mysqli_query($kapcs, "SELECT allapot_allapot_id FROM rendeles_allapot WHERE allapot_rendeles_id = '$id' ORDER BY allapot_id DESC LIMIT 1");
if(mysqli_num_rows($check_allapot) > 0 )
{
$allapot_fetch = mysqli_fetch_assoc($check_allapot);
$ertek = $allapot_fetch['allapot_allapot_id'];
}
else
{
$ertek = intval($a['status']);
}
$get_allapotok = mysqli_query($kapcs, "SELECT rendeles_allapotok_id, rendeles_allapotok_nev FROM rendeles_allapotok WHERE rendeles_allapotok_status = 1 ORDER BY rendeles_allapotok_nev ASC");
if(mysqli_num_rows($get_allapotok) > 0 )
{
while($allapot = mysqli_fetch_assoc($get_allapotok))
{
$selected = $ertek == $allapot['rendeles_allapotok_id'] ? ' selected="selected"':'';
echo '<option ' . $selected . ' value="' . $allapot['rendeles_allapotok_id'] . '">' . $allapot['rendeles_allapotok_nev'] . '</option>'."n";
}
}
?>
</select>
</div>
</div>
<div class="form-group row">
<label class="control-label col-md-2">Megrendelő értesítése email-ben:</label>
<div class="col-md-2">
<input type="checkbox" name="notify" id="notify" class="form-control"  />
</div>
</div>
<div class="form-group row">
<label class="control-label col-md-2">Megjegyzés hozzáadása az email-hez:<span class="help">Amennyiben ezt bepipálja, a megjegyzés az ügyfélnek kiküldött üzenetbe is bele fog kerülni.</span></label>
<div class="col-md-2">
<input type="checkbox" name="add_text" id="add_text" class="form-control" />
</div>
</div>
<div class="form-group row">
<label class="control-label col-md-2">Fájl csatolása az email-hez:</label>
<div class="col-md-2">
<input type="file" name="file" id="file" class="form-control"  />
</div>
</div>
<div class="form-group row">
<label class="control-label col-md-2">Megjegyzés:</label>
<div class="col-md-8">
<textarea name="comment" id="comment" style="width:100%;height:200px;"></textarea>
<div style="margin-top: 10px; text-align: center;">
<a class="saveButton btn btn-primary" style="color:#fff" onclick="allapot_modosit();" id="history_button">Állapot módosítása</a>
</div>
</div>
</div>
</form>
</div>

我在按钮单击事件上调用此函数。

function send_data()
{   
var html;
var RendelesID = <?php echo $id; ?>;
var RendelesUserEmail = "<?php echo html($a['email']); ?>";
var RendelesUserName = "<?php echo html($a['nev']); ?>";
var webshopEmail = "<?php echo $webshopEmail; ?>";
var webshopName = "<?php echo $webshopName; ?>";
var Allapot = $( "#allapot option:selected" ).val();
var Comment = CKEDITOR.instances['comment'].getData();
if($("#notify").is(':checked')){var Notify = 1;}else{var Notify = 0;}
if($("#add_text").is(':checked')){var AddToEmail = 1;}else{var AddToEmail = 0;}
var formData = new FormData($('#AllapotForm')[0]);
formData.append('fileName', $('#file')[0].files[0]);
formData.append(RendelesID, RendelesID);
formData.append(RendelesUserEmail, RendelesUserEmail);
formData.append(RendelesUserName, RendelesUserName);
formData.append(webshopEmail, webshopEmail);
formData.append(webshopName, webshopName);
formData.append(Allapot, Allapot);
formData.append(Comment, Comment);
formData.append(Notify, Notify);
formData.append(AddToEmail, AddToEmail);
console.log(formData);
$.ajax({
type: 'POST',
cache: false,
url: 'files/update_rendeles_allapot.php',
//dataType: 'html',
enctype: 'multipart/form-data',
processData: false, 
contentType: false,
data: { formData:formData },
beforeSend: function(){
$('#preloaderImage2').show();
},
success: function(data)
{
alert(data);
},
complete: function(){
$('#preloaderImage2').hide();
},
error: function (e) {
alert(e.responseText);
console.log(e);
}
});
}

Answer 1

data: { formData:formData },

您需要传递表单数据对象本身，而不是普通对象。

data: formData

Answer 2

你已经看到这个了吗？

从现有表单创建的表单数据在我记录时显示为空

如果是，请尝试检查您的网络查看网络，然后查看您的请求。

您也可以尝试通过邮递员检查您的 API 是否正常工作。