Question

我有一个简单的注册表单，它使用jQuery validate来验证表单的内容。但它似乎没有工作。无论我的页面顶部是否有jQuery，我的servlet都会触发，并且表单会以无效数据提交。以下是我的代码。有人可以帮忙吗？

脚本代码：

<head>
    <title>Sign Up</title>
    <meta charset="iso-8859-1">
    <link rel="stylesheet" href="style/style.css" type="text/css">
    <!--[if lt IE 9]><script src="scripts/html5shiv.js"></script><![endif]-->
    <script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.10.0/jquery.validate.js" type="text/javascript">
    </script>
    <script src="http://code.jquery.com/jquery-1.8.3.min.js" type="text/javascript">
    </script>
    <script type="text/javascript">
        $().ready(function() {
            // validate the comment form when it is submitted
            $("#signup").validate();

            // validate signup form on keyup and submit
            $("#signup").validate({
                rules: {
                    firstname: "required",
                    lastname: "required",
                    address1: "required",
                    city: "required",
                    county: "required",
                    postcode: "required",

                    password_s: {
                        required: true,
                        minlength: 5
                    },
                    password_s_con: {
                        required: true,
                        minlength: 5,
                        equalTo: "#password_s"
                    },
                    email: {
                        required: true,
                        email: true
                    },

                    agree: "required"
                },
                messages: {
                    firstname: "Please enter your first name",
                    lastname: "Please enter your last name",
                    address1: "Please enter your addres",
                    city: "Please enter your city/town",
                    county: "Please enter your county",
                    postcode: "Please enter your postcode",

                    password: {
                        required: "Please provide a password",
                        minlength: "Your password must be at least 5 characters long"
                    },
                    confirm_password: {
                        required: "Please provide a password",
                        minlength: "Your password must be at least 5 characters long",
                        equalTo: "Please enter the same password as above"
                    },
                    email: "Please enter a valid email address",
                    agree: "Please accept our policy"
                }
            });

        });
    </script>
</head>

表格：

<table align="left">
<tr><td align="left">
        <form name="signup" id="signup" action="SignUpServlet" method="post">
            <table width="400px" align="right" class="">
                <fieldset>
                    <legend>Sign Up:</legend>
                    <tr>
                        <td>First Name:</td> <td><input type="text" id="firstname" name="firstname" required="required">*</td>
                    </tr>
                    <tr>
                        <td>Last Name:</td><td><input type="text" id="lastname" name="lastname" required="required">*</td>
                    </tr>
                    <tr>
                        <td>Address Line 1:</td><td> <input type="text" id="address1" name="address1" required="required">*</td>
                    </tr>
                    <tr>
                        <td>Address Line 2:</td><td> <input type="text" id="address2" name="address2"></td>
                    </tr>
                    <tr>
                        <td>City:</td><td> <input type="text" id="city" name="city" required="required">*</td>
                    </tr>
                    <tr>
                        <td>County:</td><td><input type="text" id="county" name="county" required="required">*</td>
                    </tr>
                    <tr>
                        <td>Postcode:</td> <td><input type="text" id="postcode" name="postcode" required="required">*</td>
                    </tr>
                    <tr>
                        <td>Phone:</td><td> <input type="text" id="phone" name="phone"></td>
                    </tr>
                    <tr>
                        <td>Email Address:</td><td> <input type="text" id="email_s" name="email_s" required="required">*</td>
                    </tr>
                    <tr>
                        <td>Password:</td><td> <input type="password" id="password_s" name="password_s" required="required"></td>
                    </tr>
                    <tr>
                        <td>Confirm Password:</td><td> <input type="password" id="password_s_con" name="password_s_con" required="required"></td>
                    </tr>
                    <tr>
                        <td>Privacy Policy:</td><td> <input type="checkbox" class="checkbox" id="agree" name="agree" required="required"></td>
                    </tr>
                    <tr>
                        <td></td><td>
                            <input type="submit" id="lf_submit" value="submit"></td>
                    </tr>
                </fieldset>
            </table>
        </form>
    </td></tr>
<tr><td align="left"> </td></tr>
</table>

Answer 1

首先，您无需再拨打.validate()两次。这是多余的和多余的，所以删除第一个，然后自然保留包含选项的那个。

$().ready(function() {
        // validate the comment form when it is submitted
        $("#signup").validate(); // <-- REMOVE THIS

        // validate signup form on keyup and submit
        $("#signup").validate({

在.validate()内调用

DOM Ready一次以初始化表单。所有验证事件（例如submit，keyup等）都是自动的，除非您在插件选项中覆盖它们。

其次，错误地包括插件后的jQuery 。

无论您使用哪种jQuery插件， jQuery总是需要首先包含...

<script src="http://code.jquery.com/jquery-1.8.3.min.js" type="text/javascript"></script> <script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.10.0/jquery.validate.js" type="text/javascript"></script>

您的代码的演示： http://jsfiddle.net/qUYvS/

文档： http://jqueryvalidation.org/

jQuery验证，验证不起作用

1 个答案: