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2023-12-12
本文實例介紹了jQuery Validate表單驗證，主要是利用jquery.metadata.js將校驗規則直接寫在class屬性里面并定義錯誤信息的提示，分享給大家供大家參考，具體內容如下
1、添加一個另外一個插件jquery.metadata.js 并把校驗規則寫在控件里面。
2、需要改寫觸發校驗的方式。
$("#commentForm").validate({meta: "validate"});
3、詳細代碼如下：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery表單驗證插件----利用jquery.metadata.js將校驗規則寫到控件中</title>
<script src="http://www.gimoo.net/scripts/jquery-1.3.1.js" type="text/javascript"></script>
<script src="http://www.gimoo.net/t/1903/lib/jquery.validate.js" type="text/javascript"></script>
<script src="http://www.gimoo.net/t/1903/lib/jquery.metadata.js" type="text/javascript"></script>
<style type="text/css">
* { font-family: Verdana; font-size: 96%; }
label { width: 10em; float: left; }
label.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
p { clear: both; }
.submit { margin-left: 12em; }
em { font-weight: bold; padding-right: 1em; vertical-align: top; }
</style>
<script type="text/javascript">
$(document).ready(function(){
$("#commentForm").validate({meta: "validate"});
});
</script>
</head>
<body>
<form class="cmxform" id="commentForm" method="get" action="">
<fieldset>
<legend>jQuery表單驗證插件----利用jquery.metadata.js將校驗規則寫到控件中</legend>
<p>
<label for="cusername">姓名</label>
<em>*</em><input id="cusername" name="username" size="25" class="{validate:{required:true, minlength:2}}" />
</p>
<p>
<label for="cemail">電子郵件</label>
<em>*</em><input id="cemail" name="email" size="25" class="{validate:{required:true, email:true}}" />
</p>
<p>
<label for="curl">網址</label>
<em> </em><input id="curl" name="url" size="25" value="" class="{validate:{url:true}}" />
</p>
<p>
<label for="ccomment">你的評論</label>
<em>*</em><textarea id="ccomment" name="comment" cols="22" class="{validate:{required:true}}" ></textarea>
</p>
<p>
<input class="submit" type="submit" value="提交"/>
</p>
</fieldset>
</form>
</body>
</html>
默認校驗規則：
默認提示：
messages: {
required: "This field is required.",
remote: "Please fix this field.",
email: "Please enter a valid email address.",
url: "Please enter a valid URL.",
date: "Please enter a valid date.",
dateISO: "Please enter a valid date (ISO).",
dateDE: "Bitte geben Sie ein g眉ltiges Datum ein.",
number: "Please enter a valid number.",
numberDE: "Bitte geben Sie eine Nummer ein.",
digits: "Please enter only digits",
creditcard: "Please enter a valid credit card number.",
equalTo: "Please enter the same value again.",
accept: "Please enter a value with a valid extension.",
maxlength: $.validator.format("Please enter no more than {0} characters."),
minlength: $.validator.format("Please enter at least {0} characters."),
rangelength: $.validator.format("Please enter a value between {0} and {1} characters long."),
range: $.validator.format("Please enter a value between {0} and {1}."),
max: $.validator.format("Please enter a value less than or equal to {0}."),
min: $.validator.format("Please enter a value greater than or equal to {0}.")
},
4、效果圖如下：
5、注意：
使用 class="{}" 的方式，必須引入包：jquery.metadata.js。
可以使用如下的方法，修改提示內容：
class="{required:true,minlength:5,messages:{required:'請輸入內容'}}"
在使用 equalTo 關鍵字時，后面的內容必須加上引號，代碼如下所示：
class="{required:true,minlength:5,equalTo:'#password'}"
6、直接在class屬性里面定義錯誤信息的提示。
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery表單驗證插件----利用jquery.metadata.js將校驗規則寫到控件中（2）</title>
<script src="http://www.gimoo.net/scripts/jquery-1.3.1.js" type="text/javascript"></script>
<script src="http://www.gimoo.net/t/1903/lib/jquery.validate.js" type="text/javascript"></script>
<script src="http://www.gimoo.net/t/1903/lib/jquery.metadata.js" type="text/javascript"></script>
<style type="text/css">
* { font-family: Verdana; font-size: 96%; }
label { width: 10em; float: left; }
label.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
p { clear: both; }
.submit { margin-left: 12em; }
em { font-weight: bold; padding-right: 1em; vertical-align: top; }
</style>
<script type="text/javascript">
$(document).ready(function(){
$("#commentForm").validate({meta: "validate"});
});
</script>
</head>
<body>
<form class="cmxform" id="commentForm" method="get" action="">
<fieldset>
<legend>jQuery表單驗證插件----利用jquery.metadata.js將校驗規則寫到控件中（2）</legend>
<p>
<label for="cusername">姓名</label>
<em>*</em><input id="cusername" name="username" size="25" class="{validate:{required:true, minlength:2, messages:{required:'請輸入姓名', minlength:'請至少輸入兩個字符'}}}" />
</p>
<p>
<label for="cemail">電子郵件</label>
<em>*</em><input id="cemail" name="email" size="25" class="{validate:{required:true, email:true, messages:{required:'請輸入電子郵件', email:'請檢查電子郵件的格式'}}}" />
</p>
<p>
<label for="curl">網址</label>
<em> </em><input id="curl" name="url" size="25" value="" class="{validate:{url:true, messages:{url:'請檢查網址的格式'}}}" />
</p>
<p>
<label for="ccomment">你的評論</label>
<em>*</em><textarea id="ccomment" name="comment" cols="22" class="{validate:{required:true, messages:{required:'請輸入您的評論'}}}" ></textarea>
</p>
<p>
<input class="submit" type="submit" value="提交"/>
</p>
</fieldset>
</form>
</body>
</html>
7、效果如下：
以上就是本文的全部內容，希望對大家學習jQuery Validate表單驗證有所幫助，最近更新了不少關于jQuery Validate表單驗證的文章，大家可以結合進行學習。
