我正在尝试使用JQuery upload表单，但$('#formId').submit()不起作用。
<!DOCTYPE html>
<html>
<head>
<title>Upload Pricing</title>
<META CHARSET="UTF-8">
<META lang="en">
<META http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<style>
.uploadWrapper{
width: 100%;
max-width: 400px;
margin: 30px auto;
}
</style>
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="uploadWrapper">
<h3>Upload Document for Pricing</h3>
<form id="docForm" method="post" action="<?PHP $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data">
<div class="form-group">
<label><em>* </em>User Type:</label>
<select class="form-control input-sm" id="userType">
<option value="all">All</option>
<option value="restaurant">Restaurant</option>
<option value="channelPartner">Channel Partner</option>
<option value="agent">Delivery Agent</option>
</select>
</div>
<div class="form-group">
<label><em>* </em>Select Document (pdf):</label>
<input type="file" class="input-sm" id="doc" name="doc">
</div>
<div class="form-group">
<input type="submit" class="input-sm" id="submit" name="submit" value="Submit">
<span class="status"></span>
</div>
</form>
</div>
</div>
</div>
</div>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('#submit').click(function(e){
e.preventDefault();
var doc = $('#doc').val();
var extension = doc.substring(doc.lastIndexOf(".") + 1, doc.length);
extension = extension.toLowerCase();
if ( doc == '' ) {
$('.status').html('Please select pricing document');
}
else if( extension != 'pdf' ){
$('.status').html('Document must be a pdf');
}
else {
$('#docForm').submit();
}
});
});
</script>
</body>
</html>
您的问题来自您已经告诉过要阻止提交发生的单击句柄中的e.preventDefault();。如果将该行相应地移动到 if 语句
$(document).ready(function() {
$('#submit').click(function(e) {
var doc = $('#doc').val();
var extension = doc.substring(doc.lastIndexOf(".") + 1, doc.length);
extension = extension.toLowerCase();
if (doc == '') {
$('.status').html('Please select pricing document');
e.preventDefault();
} else if (extension != 'pdf') {
$('.status').html('Document must be a pdf');
e.preventDefault();
} else {
$('#docForm').submit();
}
});
});
您的$('#docForm').submit()将被执行。但是由于这已经是最后else的提交句柄，因此可以省略$('#docForm').submit();因为它并不重要。