Bootstrap 4 Bootstrap 4表单验证+；reCAPTCHA v2复选框验证流_Bootstrap 4_Recaptcha

Bootstrap 4 Bootstrap 4表单验证+；reCAPTCHA v2复选框验证流

bootstrap-4

Bootstrap 4 Bootstrap 4表单验证+；reCAPTCHA v2复选框验证流,bootstrap-4,recaptcha,Bootstrap 4,Recaptcha,我有一个带有表单验证的简单bootstrap4表单 <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" /> <title>Test<

我有一个带有表单验证的简单bootstrap4表单

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
<title>Test</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" />
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="https://www.google.com/recaptcha/api.js" async defer></script>
</head>
<body>
<div class="container px-3 py-3 pt-md-5 pb-md-4 mx-auto">
    <div class="row">
        <div class="col-12">
            <form id="frm_register" action="register.php" method="post" class="needs-validation" novalidate>
            <div class="row">
                <div class="col-12 col-lg-6">
                    <div class="form-group">
                        <label for="frm_email">Email Address</label>
                        <input type="email" id="frm_email" name="txt_email" class="form-control" placeholder="Please enter your email" required />
                        <div class="invalid-feedback">Email address is required.</div>
                    </div>
                </div>
                <div class="col-12 col-lg-6">
                    <div class="form-group">
                        <label for="frm_password">Password</label>
                        <input type="password" id="frm_password" name="txt_pass" class="form-control" placeholder="Please choose a password" required />
                        <div class="invalid-feedback">Password is required.</div>
                    </div>
                </div>
            </div>
            <div class="row">
                <div class="col-12">
                    <div class="g-recaptcha" data-sitekey="MY_SITE_KEY"></div>
                </div>
            </div>
            <div class="row">
                <div class="col-12">
                    <button class="btn btn-success">Register</button>
                </div>
            </div>
            </form>
        </div>
    </div>
</div>
<script>
(function() {
    'use strict';
    window.addEventListener('load', function() {
        var forms = document.getElementsByClassName('needs-validation');
        var validation = Array.prototype.filter.call(forms, function(form) {
            form.addEventListener('submit', function(event) {
                if (form.checkValidity() === false) {
                    event.preventDefault();
                    event.stopPropagation();
                } else {
                    var response = grecaptcha.getResponse();
                    if(response.length == 0) {
                        document.querySelector('.g-recaptcha>div').classList.add('border', 'border-danger');
                    } else {
                        console.log(response);
                        $.post('recaptcha.php', {
                            'response': response
                        }, function(data) {
                            if(data.success == true) {
                                $('#frm_register').submit();
                            } else {
                                alert('reCAPTCHA failed. Reload the page to retry.');
                            }
                        });
                    }
                    event.preventDefault();
                    event.stopPropagation();
                }
                form.classList.add('was-validated');
            }, false);
        });
    }, false);
})();
</script>
</body>
</html>

那么我该怎么做才能使reCAPTCHA与Bootstrap 4表单验证一起工作，这样我就不必再进行POST调用来检查reCAPTCHA结果了