Jquery插件验证

最新推荐文章于 2025-08-12 14:37:12 发布

翻译最新推荐文章于 2025-08-12 14:37:12 发布 · 576 阅读

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#jquery插件 #email #function #struts #javascript #date

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官方站点：http://plugins.jquery.com/project/validate

参考站点：http://bassistance.de/jquery-plugins/jquery-plugin-validation/

类似用struts做数据验证一样，将需要验证的字段设置验证规则，以及验证后的错误消息就可以使用了。
                    required: "必选字段",
                  remote: "请修正该字段",
email: "请输入正确格式的电子邮件",
url: "请输入合法的网址",
date: "请输入合法的日期",
dateISO: "请输入合法的日期 (ISO).",
number: "请输入合法的数字",
digits: "只能输入整数",
creditcard: "请输入合法的信用卡号",
equalTo: "请再次输入相同的值",
accept: "请输入拥有合法后缀名的字符串",
maxlength: jQuery.validator.format("请输入一个长度最多是 {0} 的字符串"),
minlength: jQuery.validator.format("请输入一个长度最少是 {0} 的字符串"),
rangelength: jQuery.validator.format("请输入一个长度介于 {0} 和 {1} 之间的字符串"),
range: jQuery.validator.format("请输入一个介于 {0} 和 {1} 之间的值"),
max: jQuery.validator.format("请输入一个最大为 {0} 的值"),
min: jQuery.validator.format("请输入一个最小为 {0} 的值")

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如下为某一个表单添加表单字段的属性验证：

Javascript代码

<script type="text/javascript">
// validate signup form on keyup and submit
    $("#signupForm").validate({
        rules: {
            firstname: "required",
            lastname: "required",
            username: {
                required: true,
                minlength: 2
            },
            password: {
                required: true,
                minlength: 5
            },
            confirm_password: {
                required: true,
                minlength: 5,
                equalTo: "#password"
            },
            email: {
                required: true,
                email: true
            },
            topic: {
                required: "#newsletter:checked",
                minlength: 2
            },
            agree: "required"
        },
        messages: {
            firstname: "Please enter your firstname但是份额",
            lastname: "Please enter your lastname",
            username: {
                required: "Please enter a username",
                minlength: "Your username must consist of at least 2 characters"
            },
            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>

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例子：

Java代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>jQuery validation plug-in - main demo</title>

<link rel="stylesheet" type="text/css" media="screen" href="css/screen.css" />

<script src="js/jquery-1.3.2.min.js" type="text/javascript"></script>
<script src="js/jquery.validate.js" type="text/javascript"></script>


<script src="js/localization/messages_cn.js" type="text/javascript"></script>

<script type="text/javascript">
$.validator.setDefaults({
    submitHandler: function() { alert("submitted!"); }
});

$().ready(function() {
    // validate the comment form when it is submitted
    $("#commentForm").validate();


});
</script>

<style type="text/css">
#commentForm { width: 500px; }
#commentForm label { width: 250px; }
#commentForm label.error, #commentForm input.submit { margin-left: 253px; }
#signupForm { width: 670px; }
#signupForm label.error {
    margin-left: 10px;
    width: auto;
    display: inline;
}
#newsletter_topics label.error {
    display: none;
    margin-left: 103px;
}
</style>

</head>
<body>

<form class="cmxform" id="commentForm" method="get" action="">
    <fieldset>
        <legend>Please provide your name, email address (won't be published) and a comment</legend>
        <p>
            <label for="cname">Name (required, at least 2 characters)</label>
            <input id="cname" name="name" class="required" minlength="2" />
        <p>
            <label for="cemail">E-Mail (required)</label>
            <input id="cemail" name="email" class="required email" />
        </p>
        <p>
            <label for="curl">URL (optional)</label>
            <input id="curl" name="url" class="url" value="" />
        </p>
        <p>
            <label for="ccomment">Your comment (required)</label>
            <textarea id="ccomment" name="comment" class="required"></textarea>
        </p>
        <p>
            <input class="submit" type="submit" value="Submit"/>
        </p>
    </fieldset>
</form>


</body>
</html>

注：有多个js文件可根据需要适当的增减文件。
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若考虑是否在验证后进行后续操作就也可在validate的方法之中进行其他操作，注意此时要使用这种形式：
$j("#sform").validate({
submitHandler: function(){
alert("dsf");

}
});

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