使用Ajax的联系表问题

Question

我在我的网站上添加了一个使用ajax的联系表。 我从2014年3月从Matt West的Treehouse博客文章中获取了代码。代码如下。

总体而言，该表格运行良好，但存在两个无法解决的问题。 第一个似乎很小。 就是说，在mailer.php发送完邮件之后，我从“ http_response_code（200）”行收到一条错误消息，提示说存在一个无法识别的函数。 我只是通过注释掉http_response_code行来解决此问题，但是我不知道是否需要做些什么才能使其正常运行。

另一个问题是UX问题。 发送邮件并显示成功消息后，表单中所有字段周围会出现红色边框。 这似乎没有由CSS处理，因此必须在jquery中。 我认为红色边框应该表示错误的数据，但是我不希望用户成功发送消息后出现这些红色边框。 任何帮助，将不胜感激。

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>AJAX Contact Form Demo</title>
    <link rel="stylesheet" href="css/style.css">
</head>
<body>
    <div id="page-wrapper">
      <h1>AJAX Contact Form Demo</h1>
      <div id="form-messages"></div>
        <form id="ajax-contact" method="post" action="bat/mailer.php">
            <div class="field">
                <label for="name">Name:</label>
                    <input type="text" id="name" name="name" required>
            </div>
            <div class="field">
                <label for="email">Email:</label>
                <input type="email" id="email" name="email" required>
            </div>
            <div class="field">
                <label for="message">Message:</label>
                <textarea id="message" name="message" required></textarea>
            </div>
            <div class="field" id="btns">
                <button type="clear">Clear</button>
                <button type="submit">Send</button>
            </div>
        </form>
    </div>
    <script src="js/jquery-2.1.0.min.js"></script>
    <script src="js/app.js"></script>
</body>
</html>

style.css

*, *:before, *:after {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  font-family: Helvetica, Arial, sans-serif;
  font-size: 100%;
  background: #333;
  -webkit-font-smoothing: antialiased;
}

#page-wrapper {
  width: 640px;
  background: #FFFFFF;
  padding: 1em;
  margin: 1em auto;
  border-top: 5px solid #69c773;
  box-shadow: 0 2px 10px rgba(0,0,0,0.8);
}

h1 {
  margin-top: 0;
}

.field {
  margin: 1em 0;
}

label {
  display: block;
  margin-top: 2em;
  margin-bottom: 0.5em;
  color: #999999;
}

input {
  width: 100%;
  padding: 0.5em 0.5em;
  font-size: 1.2em;
  border-radius: 3px;
  border: 1px solid #D9D9D9;
}

textarea {
  width: 100%;
  height: 200px;
  padding: 0.5em 0.5em;
  font-size: 1.2em;
  border-radius: 3px;
  border: 1px solid #D9D9D9;
}

#btns {
  text-align: right;
  padding-top: 2.3em;
  font-size: 0;
  line-height: 0;
}

button {
  display: inline-block;
  border-radius: 3px;
  border: none;
  font-size: 0.9rem;
  padding: 0.5rem 0.8em;
  background: #69c773;
  border-bottom: 1px solid #498b50;
  color: white;
  -webkit-font-smoothing: antialiased;
  font-weight: bold;
  margin: 0;
  width: 27%;
  text-align: center;
}



button+button {
  margin-left: 1em;
}

button:hover, button:focus {
  opacity: 0.75;
  cursor: pointer;
}

button:active {
  opacity: 1;
  box-shadow: 0 -3px 10px rgba(0, 0, 0, 0.1) inset;
}

.success {
  padding: 1em;
  margin-bottom: 0.75rem;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
  color: #468847;
  background-color: #dff0d8;
  border: 1px solid #d6e9c6;
  -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
          border-radius: 4px;
}

.error {
  padding: 1em;
  margin-bottom: 0.75rem;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
  color: #b94a48;
  background-color: #f2dede;
  border: 1px solid rgba(185, 74, 72, 0.3);
  -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
          border-radius: 4px;
}

的jquery-2.1.0.min.js

app.js

$(function() {

    // Get the form.
    var form = $('#ajax-contact');

    // Get the messages div.
    var formMessages = $('#form-messages');

    // Set up an event listener for the contact form.
    $(form).submit(function(e) {
        // Stop the browser from submitting the form.
        e.preventDefault();

        // Serialize the form data.
        var formData = $(form).serialize();

        // Submit the form using AJAX.
        $.ajax({
            type: 'POST',
            url: $(form).attr('action'),
            data: formData
        })
        .done(function(response) {
            // Make sure that the formMessages div has the 'success' class.
            $(formMessages).removeClass('error');
            $(formMessages).addClass('success');

            // Set the message text.
            $(formMessages).text(response);

            // Clear the form.
            $('#name').val('');
            $('#email').val('');
            $('#message').val('');
        })
        .fail(function(data) {
            // Make sure that the formMessages div has the 'error' class.
            $(formMessages).removeClass('success');
            $(formMessages).addClass('error');

            // Set the message text.
            if (data.responseText !== '') {
                $(formMessages).text(data.responseText);
            } else {
                $(formMessages).text('Oops! An error occured and your message could not be sent.');
            }
        });

    });

});

mailer.php

<?php
    // My modifications to mailer script from:
    // http://blog.teamtreehouse.com/create-ajax-contact-form
    // Added input sanitizing to prevent injection

    // Only process POST reqeusts.
    if ($_SERVER["REQUEST_METHOD"] == "POST") {
        // Get the form fields and remove whitespace.
        $name = strip_tags(trim($_POST["name"]));
                $name = str_replace(array("\r","\n"),array(" "," "),$name);
        $email = filter_var(trim($_POST["email"]), FILTER_SANITIZE_EMAIL);
        $message = trim($_POST["message"]);

        // Check that data was sent to the mailer.
        if ( empty($name) OR empty($message) OR !filter_var($email, FILTER_VALIDATE_EMAIL)) {
            // Set a 400 (bad request) response code and exit.
            //http_response_code(400);
            echo "Oops! There was a problem with your submission. Please complete the form and try again.";
            exit;
        }

        // Set the recipient email address.
        // FIXME: Update this to your desired email address.
        $recipient = "recipient@email.com";

        // Set the email subject.
        $subject = "New contact from $name";

        // Build the email content.
        $email_content = "Name: $name\n";
        $email_content .= "Email: $email\n\n";
        $email_content .= "Message:\n$message\n";

        // Build the email headers.
        $email_headers = "From: $name <$email>";

        // Send the email.
        if (mail($recipient, $subject, $email_content, $email_headers)) {
            // Set a 200 (okay) response code.
            //http_response_code(200);
            echo "Thank You! Your message has been sent.";
        } else {
            // Set a 500 (internal server error) response code.
            //http_response_code(500);
            echo "Oops! Something went wrong and we couldn't send your message.";
        }

    } else {
        // Not a POST request, set a 403 (forbidden) response code.
        //http_response_code(403);
        echo "There was a problem with your submission, please try again.";
    }

?>

Answer 1

可能会出现红色边框，因为一旦Ajax调用完成，您将清除所有字段。 由于字段设置了required属性，因此无论您使用的是哪种浏览器，都使用红色边框标记它们以表明它们应该具有值。 它根本不在您的CSS或JavaScript中。

您可以尝试如下操作：

$("#name, #email, #message").removeAttr("required").val("").attr("required");

代替此：

// Clear the form.
$('#name').val('');
$('#email').val('');
$('#message').val('');

我只看到它发生在Firefox中，这似乎阻止了它的发生。 在清除值之前，它将删除required属性，然后将其重新添加。

使用Ajax的联系表问题

问题描述

1 个解决方案

解决方案1
0 2015-01-07 17:02:49

使用Ajax的联系表问题

问题描述

1 个解决方案

解决方案1 0 2015-01-07 17:02:49

解决方案1
0 2015-01-07 17:02:49