深入学习jQuery Validate表单验证_H5之家 - 中国HTML5教程资源分享第一站

本文实例介绍了jQuery Validate表单验证，主要是利用jquery.metadata.js将校验规则直接写在class属性里面并定义错误信息的提示，分享给大家供大家参考，具体内容如下

1、添加一个另外一个插件jquery.metadata.js 并把校验规则写在控件里面。

$("#commentForm").validate({meta: "validate"});

3、详细代码如下：

<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>jQuery表单验证插件----利用jquery.metadata.js将校验规则写到控件中</title> <script src="../../scripts/jquery-1.3.1.js" type="text/javascript"></script> <script src="lib/jquery.validate.js" type="text/javascript"></script><script src="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 method="get" action=""> <fieldset> <legend>jQuery表单验证插件----利用jquery.metadata.js将校验规则写到控件中</legend> <p> <label for="cusername">姓名</label> <em>*</em><input size="25" /> </p> <p> <label for="cemail">电子邮件</label> <em>*</em><input size="25" /> </p> <p> <label for="curl">网址</label> <em> </em><input size="25" value="" /> </p> <p> <label for="ccomment">你的评论</label> <em>*</em><textarea cols="22" ></textarea> </p> <p> <input type="submit" value="提交"/> </p> </fieldset> </form></body></html>

默认校验规则：

默认提示：

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、效果图如下：

5、注意：
使用的方式，必须引入包：jquery.metadata.js。
可以使用如下的方法，修改提示内容：

class="{required:true,minlength:5,messages:{required:'请输入内容'}}"

在使用 equalTo 关键字时，后面的内容必须加上引号，代码如下所示：

class="{required:true,minlength:5,equalTo:'#password'}"

6、直接在class属性里面定义错误信息的提示。

<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>jQuery表单验证插件----利用jquery.metadata.js将校验规则写到控件中（2）</title> <script src="../../scripts/jquery-1.3.1.js" type="text/javascript"></script> <script src="lib/jquery.validate.js" type="text/javascript"></script><script src="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 method="get" action=""> <fieldset> <legend>jQuery表单验证插件----利用jquery.metadata.js将校验规则写到控件中（2）</legend> <p> <label for="cusername">姓名</label> <em>*</em><input size="25" /> </p> <p> <label for="cemail">电子邮件</label> <em>*</em><input size="25" /> </p> <p> <label for="curl">网址</label> <em> </em><input size="25" value="" /> </p> <p> <label for="ccomment">你的评论</label> <em>*</em><textarea cols="22" ></textarea> </p> <p> <input type="submit" value="提交"/> </p> </fieldset> </form></body></html>

7、效果如下：