我有一个表格，我试图通过ajax发送值。但是我收到以下错误：
未捕获的TypeError：非法调用
我被困住了，找不到我错了。有什么建议吗？
阿贾克斯
<html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" </script>
<script type="text/javascript">
$(document).ready(function() {
$("#submit_custom").click(function() {
e.preventDefault();
var postData = new FormData();
postData.append('file[]', $('input[type=file]')[0].files[0]); // after this line
postData.append('trxid', $('input[name=trxid]'));
postData.append('orderid', $('input[name=orderid]'));
postData.append('custid', $('input[name=custid]'));
if(proceed)
$.post('upload.php', post_data, function(response){
if(response.type == 'error'){ //load json data from server and output message
output = '<div class="error">'+response.text+'</div>';
}else{
output = '<div class="success">'+response.text+'</div>';
$("#upload_form").slideUp(); //hide form after success
}
$("#upload_form").hide().html(output).slideDown();
}, 'json');
});
});
});
</script>
</head>
<body>
<h2>Hello <?php echo $user ?> </h2> <p> "You have successfully done purchasing process.</p>
<div id="upload_form">
<p>To send your size details for your order please upload the following file:</p>
<p>Download custom size form Provide us your custom size: <a href="download.php?download_file=custom-measurement-form.pdf">File.pdf</a></p>
<form enctype="multipart/form-data" action="" method="post">
<input type="text" name="trxid" value="<?=$trx?>">
<input type="text" name="orderid" value="<?=$orderid?>">
<input type="text" name="custid" value="<?=$customerid?>">
<input type="file" name="file">
<input type="submit" id="submit_custom">
</form>
</div>
</body>
</html>
最佳答案
您将得到非法调用，因为jQuery无法为postData序列化$.post对象。
我认为您需要添加.val()。
postData.append('file[]', $('input[type=file]')[0].files[0].val()); // after this line
postData.append('trxid', $('input[name=trxid]').val());
postData.append('orderid', $('input[name=orderid]').val());
postData.append('custid', $('input[name=custid]').val());