您好我有一个jquery和ajax验证表单,当您在密码中填写值(错误的值)x@x.com和1111111时,它会给出ajax验证通知(这很好)但是之后如果您放入值(正确值)example@example.com和12345678它需要两次点击才能提交。这意味着如果您先输入错误的值然后输入正确的值,则需要两次单击才能提交。以下是代码。我已经设置了下面的代码,因此您可以将代码复制并粘贴到文件中(之前给出的文件名),您将拥有一个可以使用的工作模型。我已经对php验证文件进行了硬编码,因此您可以复制并粘贴代码,看看它是如何工作的。
的index.php
<?php
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
?>
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
</head>
<body>
<form method="post" name="loginform" action="success.php">
<input type="email" class="homepage" name="user_email2" id="user_email2" placeholder="Email" maxlength="50" required />
<div class ="errormsg" id ="errormsg6"></div>
<input type="password" class="homepage" name="user_password2" id="user_password2" placeholder="Password" maxlength="20" required />
<div class ="errormsg" id ="errormsg7"></div>
<input type="submit" name="login" id="login" value="Submit">
<div class ="errormsglast" id ="errormsg8"></div>
</form>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script type="text/javascript" src="validatelogin.js"></script>
</body>
</html>
validatelogin.js
$(document).ready(function()
{
/* ----------------- Login Validations Global Variables ----------------- */
var user_email2 = "";
var user_emailajax2 = "";
var user_password2 = "";
var user_passwordajax2 = "";
var emailformat = new RegExp(/^[+a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/i);
/* ----------------- Define Validate Email */
var validate_email_login = function()
{
var item5 = $("#user_email2").val();
var item5 = item5.toLowerCase();
if (item5.length < 6 || item5.length > 50)
{
$("#errormsg6").html("Email : 6 - 50 Characters");
user_email2 = "";
}
else
{
$("#errormsg6").html("");
user_email2 = item5;
if (!emailformat.test(item5))
{
$("#errormsg6").html("Wrong Email Format");
user_email2 = "";
}
else
{
$("#errormsg6").html("");
user_email2 = item5;
$.ajax(
{
type: 'POST',
url: 'validatelogin.php?f=1',
data: "user_email2=" + item5,
success: function(msg)
{
if (msg == "ok")
{
user_emailajax2 = "";
$("#errormsg6").html("Email Does Not Exist");
}
else if (msg == "exists")
{
user_emailajax2 = item5;
$("#errormsg6").html("");
}
}
});
}
}
}
/* ----------------- Define Validate Password */
var validate_password_login = function()
{
var item5 = $("#user_email2").val();
var item5 = item5.toLowerCase();
var item6 = $("#user_password2").val();
if (item6.length < 8 || item6.length > 20)
{
$("#errormsg7").html("Password : 8-20 Characters");
user_password2 = "";
}
else
{
$("#errormsg7").html("");
user_password2 = item6;
if (user_email2 != "" && user_emailajax2 != "")
{
$.ajax(
{
method: "POST",
url: "validatelogin.php?f=2",
data: "user_email2=" + item5 + "&user_password2=" + item6,
success: function(msg)
{
if (msg == "WrongPw")
{
user_passwordajax2 = "";
$("#errormsg7").html("Wrong Password");
}
else if (msg == "CorrectPw")
{
user_passwordajax2 = item6;
$("#errormsg7").html("");
/* window.location.href="manage-properties"; */
}
}
});
}
}
}
/* ----------------- Run Functions */
$("#user_email2").on('focusout', validate_email_login);
$("#user_password2").on('focusout', validate_password_login);
$("#login").on('click', validate_email_login);
$("#login").on('click', validate_password_login);
/* ----------------- Stop on Submit */
$("#login").on('click', function()
{
if (user_email2 == "" || user_emailajax2 == "" || user_password2 == "" || user_passwordajax2 == "")
{
$("#errormsg8").html("Please Fill All Fields (Correctly)");
console.log("submit false");
return false;
}
else
{
$("#errormsg8").html("");
console.log("submit true");
return true;
}
});
});
validatelogin.php
<?php
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
if($_GET['f']==1) {
if(isset($_POST['user_email2'])) {
$user_email2 = strtolower($_POST['user_email2']);
if($user_email2 == "example@example.com") {
echo "exists";
} else {
echo "ok";
}
}
}
if($_GET['f']==2) {
if(isset($_POST['user_email2'], $_POST['user_password2'] )) {
$user_email2 = strtolower($_POST['user_email2']);
$user_password2 = $_POST['user_password2'];
if($user_email2!="example@example.com" and $user_password2!="12345678") {
echo "WrongPw";
} elseif($user_email2=="example@example.com" and $user_password2=="12345678") {
echo "CorrectPw";
}
}
}
?>
success.php
<?php
echo "Login Successful";
?>
尝试过的解决方案 1.延迟提交按钮 2.在Keyup上而不是在Focusout上(这有效但不是必需的) 3.给keyup延迟(无法让它与ajax一起使用 - 但它更接近我的要求,但不完全符合我的要求 4.触发ajax上的点击提交返回true(也没有用)
我需要一些javascript专家来调查并给我解决方案。
答案 0 :(得分:1)
好吧,我不想变得粗鲁,但所有的代码都有点像灾难。您在3次不同的时间内调用了点击功能,您在每次表单更改和提交时都会对服务器进行ajax调用。然后你实际上为实际的提交函数做了两个单独的ajax调用。
下面的代码更紧凑,只有一个ajax调用,应该工作。我会在每个代码块之前解释一下
您的表单添加了一个id,以便jQuery可以在ajax调用中使用序列化
<form method="post" id="loginform" name="loginform" action="success.php">
<input type="email" class="homepage" name="user_email2" id="user_email2" placeholder="Email" maxlength="50" required />
<div class ="errormsg" id ="errormsg6"></div>
<input type="password" class="homepage" name="user_password2" id="user_password2" placeholder="Password" maxlength="20" required />
<div class ="errormsg" id ="errormsg7"></div>
<input type="submit" name="login" id="login" value="Submit">
<div class ="errormsglast" id ="errormsg8"></div>
</form>
validatelogin.php - 这应该只是对服务器的一次调用,将两个函数合二为一,将数据作为json返回而不是回显单个值,这样你得到的对象就是你了可以解析你的jQuery代码。
<?php
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
if(isset($_POST['user_email2'], $_POST['user_password2'] )) {
$user_password2 = $_POST['user_password2'];
$user_email2 = strtolower($_POST['user_email2']);
if($user_email2 != "example@example.com") {
$data['email_check'] = 'false';
} else {
$data['email_check'] = 'true';
}
$data = array;
if($user_email2!="example@example.com" && $user_password2!="12345678") {
$data['password_check'] = 'false';
} else {
$data['password_check'] = 'true';
}
}
print(json_encode($data));
jQuery - 我不确定为什么你会在模糊和点击次数上调用所有这些功能。只需单击一下,调用验证电子邮件,如果通过则继续验证密码,如果通过它,则调用ajax实际检查服务器的详细信息。
还要避免像item5,errormsg6这样的变量名称给另一个没有任何意义的开发人员,并且它在6个月内也不会给你。并且不要告诉人们哪个元素是错误的,即&#34;密码不正确&#34;只是为了安全,只要告诉他们他们的登录详细信息是错误的。
$(document).ready(function() {
/* ----------------- Login Validations Global Variables ----------------- */
var user_email2 = "";
var user_emailajax2 = "";
var user_password2 = "";
var user_passwordajax2 = "";
var emailformat = new RegExp(/^[+a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/i);
/* ----------------- Define Validate Email */
var validate_email_login = function() {
var email = $("#user_email2").val().toLowerCase();
var errors = [];
if (email.length < 6 || email.length > 50) {
errors.push("Email : 6 - 50 Characters<br>");
}
if (!emailformat.test(email)) {
errors.push("Wrong Email Format");
}
if( errors.length > 0 ) {
$("#errormsg6").html(errors);
return false;
}
$("#errormsg6").html();
validate_password_login();
}
/* ----------------- Define Validate Password */
var validate_password_login = function() {
var item6 = $("#user_password2").val();
if (item6.length < 8 || item6.length > 20) {
$("#errormsg7").html("Password : 8-20 Characters");
return false;
}
$("#errormsg7").html("");
submitForm();
}
var submitForm = function() {
$.ajax({
type: 'POST',
url: 'validatelogin.php',
dataType: "json",
data: $("#loginform").serialize(),
success: function(msg) {
if(msg.email_check == 'true' && msg.password_check == 'true') {
//do whatever it is you want to do on correct login here
} else {
$("#errormsg6").html("Your login details are incorrect, please check and try again");
}
}
});
}
/* ----------------- Stop on Submit */
$("#login").on('click', function() {
errors = [];
if(validate_email_login() == true) {
alert("hi");
}
});
});
您可以在此处查看jQuery端的错误验证:https://jsfiddle.net/calder12/3fhvpenr/