<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script>
$(function () {
$('form').bind('submit', function () {
$.ajax({
type: 'post',
url: 'post.php',
data: $('form').serialize(),
success: function () {
alert('form was submitted');
}
});
return false;
});
});
</script>
</head>
<body>
<form>
<input name="time" value="00:00:00.00"><br>
<input name="date" value="0000-00-00"><br>
<input name="submit" type="button" value="Submit">
</form>
</body>
</html>
当我推送提交时,什么也没发生。在接收的php文件中,我正在使用$ _POST ['time']和$ _POST ['date']将数据放入mysql查询中,但它没有获取数据。有什么建议?我假设这与“提交”按钮有关,但我无法弄清楚
#1 楼
表单是在ajax请求之后提交的。<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script>
$(function () {
$('form').on('submit', function (e) {
e.preventDefault();
$.ajax({
type: 'post',
url: 'post.php',
data: $('form').serialize(),
success: function () {
alert('form was submitted');
}
});
});
});
</script>
</head>
<body>
<form>
<input name="time" value="00:00:00.00"><br>
<input name="date" value="0000-00-00"><br>
<input name="submit" type="submit" value="Submit">
</form>
</body>
</html>
评论
应该在on('submit'...)事件的第一行中使用preventDefault
– Please_Dont_Bully_Me_SO_Lords
13年5月17日在19:21
@EASI没问题。$。ajax部分正常工作,所以这不是问题
–下划线
13年5月17日在19:23
这成功了!非常感谢。我知道按钮出了点问题,但是关于preventDefault却一无所知
–GlassHalfAwesome
13年5月17日在20:22
@ user2395143很高兴我可以提供帮助。
–凯文·鲍索克斯(Kevin Bowersox)
13年5月17日在20:23
@samitha @EASI是正确的,如果发生JS致命错误,则将不会命中preventDefault并且页面将重新加载,调试困难,最好尽快使用prevenDefault。
–Vadorequest
2014年5月18日在19:12
#2 楼
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script>
$(function () {
$('form').bind('click', function (event) {
// using this page stop being refreshing
event.preventDefault();
$.ajax({
type: 'POST',
url: 'post.php',
data: $('form').serialize(),
success: function () {
alert('form was submitted');
}
});
});
});
</script>
</head>
<body>
<form>
<input name="time" value="00:00:00.00"><br>
<input name="date" value="0000-00-00"><br>
<input name="submit" type="submit" value="Submit">
</form>
</body>
</html>
PHP
<?php
if(isset($_POST["date"]) || isset($_POST["time"])) {
$time="";
$date="";
if(isset($_POST['time'])){$time=$_POST['time']}
if(isset($_POST['date'])){$date=$_POST['date']}
echo $time."<br>";
echo $date;
}
?>
评论
“从事件处理程序返回false将自动调用event.stopPropagation()和event.preventDefault()”
–欧肯·科西吉特(Okan Kocyigit)
13年5月17日在19:21
第二个“ if”中的小错误:应为“ if(isset($ _ POST ['date'])){$ date = $ _ POST ['date']}”
–填写
17年4月20日在14:09
#3 楼
JS代码 $("#submit").click(function() {
//get input field values
var name = $('#name').val();
var email = $('#email').val();
var message = $('#comment').val();
var flag = true;
/********validate all our form fields***********/
/* Name field validation */
if(name==""){
$('#name').css('border-color','red');
flag = false;
}
/* email field validation */
if(email==""){
$('#email').css('border-color','red');
flag = false;
}
/* message field validation */
if(message=="") {
$('#comment').css('border-color','red');
flag = false;
}
/********Validation end here ****/
/* If all are ok then we send ajax request to email_send.php *******/
if(flag)
{
$.ajax({
type: 'post',
url: "email_send.php",
dataType: 'json',
data: 'username='+name+'&useremail='+email+'&message='+message,
beforeSend: function() {
$('#submit').attr('disabled', true);
$('#submit').after('<span class="wait"> <img src="image/loading.gif" alt="" /></span>');
},
complete: function() {
$('#submit').attr('disabled', false);
$('.wait').remove();
},
success: function(data)
{
if(data.type == 'error')
{
output = '<div class="error">'+data.text+'</div>';
}else{
output = '<div class="success">'+data.text+'</div>';
$('input[type=text]').val('');
$('#contactform textarea').val('');
}
$("#result").hide().html(output).slideDown();
}
});
}
});
//reset previously set border colors and hide all message on .keyup()
$("#contactform input, #contactform textarea").keyup(function() {
$("#contactform input, #contactform textarea").css('border-color','');
$("#result").slideUp();
});
HTML表单
<div class="cover">
<div id="result"></div>
<div id="contactform">
<p class="contact"><label for="name">Name</label></p>
<input id="name" name="name" placeholder="Yourname" type="text">
<p class="contact"><label for="email">Email</label></p>
<input id="email" name="email" placeholder="admin@admin.com" type="text">
<p class="contact"><label for="comment">Your Message</label></p>
<textarea name="comment" id="comment" tabindex="4"></textarea> <br>
<input name="submit" id="submit" tabindex="5" value="Send Mail" type="submit" style="width:200px;">
</div>
PHP代码
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
//check if its an ajax request, exit if not
if (!isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) != 'xmlhttprequest') {
//exit script outputting json data
$output = json_encode(
array(
'type' => 'error',
'text' => 'Request must come from Ajax'
));
die($output);
}
//check $_POST vars are set, exit if any missing
if (!isset($_POST["username"]) || !isset($_POST["useremail"]) || !isset($_POST["message"])) {
$output = json_encode(array('type' => 'error', 'text' => 'Input fields are empty!'));
die($output);
}
//Sanitize input data using PHP filter_var().
$username = filter_var(trim($_POST["username"]), FILTER_SANITIZE_STRING);
$useremail = filter_var(trim($_POST["useremail"]), FILTER_SANITIZE_EMAIL);
$message = filter_var(trim($_POST["message"]), FILTER_SANITIZE_STRING);
//additional php validation
if (strlen($username) < 4) { // If length is less than 4 it will throw an HTTP error.
$output = json_encode(array('type' => 'error', 'text' => 'Name is too short!'));
die($output);
}
if (!filter_var($useremail, FILTER_VALIDATE_EMAIL)) { //email validation
$output = json_encode(array('type' => 'error', 'text' => 'Please enter a valid email!'));
die($output);
}
if (strlen($message) < 5) { //check emtpy message
$output = json_encode(array('type' => 'error', 'text' => 'Too short message!'));
die($output);
}
$to = "info@wearecoders.net"; //Replace with recipient email address
//proceed with PHP email.
$headers = 'From: ' . $useremail . '' . "\r\n" .
'Reply-To: ' . $useremail . '' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
$sentMail = @mail($to, $subject, $message . ' -' . $username, $headers);
//$sentMail = true;
if (!$sentMail) {
$output = json_encode(array('type' => 'error', 'text' => 'Could not send mail! Please contact administrator.'));
die($output);
} else {
$output = json_encode(array('type' => 'message', 'text' => 'Hi ' . $username . ' Thank you for your email'));
die($output);
}
此页面有一个更简单的示例
http://wearecoders.net/submit-form-without-page-refresh-with-php-and-ajax/
#4 楼
这是一个不错的jQuery插件,可通过ajax提交表单:http://malsup.com/jquery/form/
它很简单:
<script src="http://malsup.github.com/jquery.form.js"></script>
<script>
$(document).ready(function() {
$('#myForm').ajaxForm(function() {
alert('form was submitted');
});
});
</script>
它使用posts位置的表单动作。
不是您不能用自己的代码实现这一点,但是这个插件对我来说很好用! br />
#5 楼
JS代码<script type="text/javascript" src="http://ajax.googleapis.com/ajax/ libs/jquery/1.3.0/jquery.min.js">
</script>
<script type="text/javascript" >
$(function() {
$(".submit").click(function() {
var time = $("#time").val();
var date = $("#date").val();
var dataString = 'time='+ time + '&date=' + date;
if(time=='' || date=='')
{
$('.success').fadeOut(200).hide();
$('.error').fadeOut(200).show();
}
else
{
$.ajax({
type: "POST",
url: "post.php",
data: dataString,
success: function(){
$('.success').fadeIn(200).show();
$('.error').fadeOut(200).hide();
}
});
}
return false;
});
});
</script>
HTML表单
<form>
<input id="time" value="00:00:00.00"><br>
<input id="date" value="0000-00-00"><br>
<input name="submit" type="button" value="Submit">
</form>
<span class="error" style="display:none"> Please Enter Valid Data</span>
<span class="success" style="display:none"> Form Submitted Success</span>
</div>
PHP代码
<?php
if($_POST)
{
$date=$_POST['date'];
$time=$_POST['time'];
mysql_query("SQL insert statement.......");
}else { }
?>
从这里出发
#6 楼
type="button
“ 应该是
type="submit"
#7 楼
在事件处理中,将事件的对象传递给函数,然后添加语句,即event.preventDefault();
,这会将数据传递给网页而无需刷新。
#8 楼
$(document).ready(function(){
$('#userForm').on('submit', function(e){
e.preventDefault();
//I had an issue that the forms were submitted in geometrical progression after the next submit.
// This solved the problem.
e.stopImmediatePropagation();
// show that something is loading
$('#response').html("<b>Loading data...</b>");
// Call ajax for pass data to other place
$.ajax({
type: 'POST',
url: 'somephpfile.php',
data: $(this).serialize() // getting filed value in serialize form
})
.done(function(data){ // if getting done then call.
// show the response
$('#response').html(data);
})
.fail(function() { // if fail then getting message
// just in case posting your form failed
alert( "Posting failed." );
});
// to prevent refreshing the whole page page
return false;
});
#9 楼
<div class="container">
<div class="row">
<div class="col-md-3 col-sm-6 col-xs-12"></div>enter code here
<div class="col-md-6 col-sm-6 col-xs-12">
<div class="msg"></div>
<form method="post" class="frm" id="form1" onsubmit="">
<div class="form-group">
<input type="text" class="form-control" name="fname" id="fname" placeholder="enter your first neme" required>
<!--><span class="sp"><?php// echo $f_err;?></span><!-->
</div>
<div class="form-group">
<input type="text" class="form-control" name="lname" id="lname" placeholder="enter your last neme" required>
<!--><span class="sp"><?php// echo $l_err;?></span><!-->
</div>
<div class="form-group">
<input type="text" class="form-control" name="email" id="email" placeholder="enter your email Address" required>
<!--><span class="sp"><?php// echo $e_err;?></span><!-->
</div>
<div class="form-group">
<input type="number" class="form-control" name="mno" id="mno" placeholder="enter your mobile number" required>
<!--><span class="sp"><?php //echo $m_err;?></span><!-->
</div>
<div class="form-group">
<input type="password" class="form-control" name="pass" id="pass" pattern="(?=.*[a-z])(?=.*[A-Z]).{4,8}" placeholder="enter your Password" required>
<!--><span class="sp"><?php //echo $p_err;?></span><!-->
</div>
<div class="radio">
<input type="radio" value="male" name="gender" id="gender" checked>male<br>
<input type="radio" value="female" name="gender" id="gender">female<br>
<input type="radio" value="other" name="gender" id="gender">other<br>
<!--><span class="sp"> <?php //echo $r_err;?></span><!-->
</div>
<div class="checkbox">
<input type="checkbox" name="check" id="check" checked>I Agree Turms&Condition<br>
<!--><span class="sp"> <?php //echo $c_err;?></span><!-->
</div>
<input type="submit" class="btn btn-warning" name="submit" id="submit">
</form>enter code here
</div>
<div class="col-md-3 col-sm-6 col-xs-12"></div>
</div>
</div>
评论
添加一些解释会很好。
– Tokkir
19年5月13日在7:17
#10 楼
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript" >
$(function () {
$(".submit").click(function (event) {
var time = $("#time").val();
var date = $("#date").val();
var dataString = 'time=' + time + '&date=' + date;
console.log(dataString);
if (time == '' || date == '')
{
$('.success').fadeOut(200).hide();
$('.error').fadeOut(200).show();
} else
{
$.ajax({
type: "POST",
url: "post.php",
data: dataString,
success: function (data) {
$('.success').fadeIn(200).show();
$('.error').fadeOut(200).hide();
$("#data").html(data);
}
});
}
event.preventDefault();
});
});
</script>
<form action="post.php" method="POST">
<input id="time" value=""><br>
<input id="date" value=""><br>
<input name="submit" type="button" value="Submit" class="submit">
</form>
<div id="data"></div>
<span class="error" style="display:none"> Please Enter Valid Data</span>
<span class="success" style="display:none"> Form Submitted Success</span>
<?php
print_r($_POST);
if ($_POST['date']) {
$date = $_POST['date'];
$time = $_POST['time'];
echo '<h1>' . $date . '---' . $time . '</h1>';
}
else {
}
?>
评论
您是否尝试过event.preventDefault()而不是返回false也不要使用Submit事件。请使用CLICK事件
您不需要使用type =“ submit”代替type =“ button”吗?
“从jQuery 1.7开始,.on()方法是将事件处理程序附加到文档的首选方法。”
唯一的问题是输入类型,您没有提交按钮。