- 下载jQuery validate 插件
第一种是通过jQuery官网下载
http://plugins.jquery.com/validation/
点击“Download now”，跳转到 https://github.com/jzaefferer/jquery-validation
第二种是通过 validate 插件官网下载
官网下载：http://jqueryvalidation.org/
- 搭建validate开发环境
在jquery-validation-1.13.1\dist目录下得到validate框架文件：jquery.validate.js。
引入如下两个文件开发环境就搭建完毕：
<script src=*"js/jquery-1.11.3.min.js"*></script>
<script src=*"js/jquery.validate.js"*></script>
3.示例一 把验证属性写在 标签中
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery validation plugin</title>
<script src="js/jquery-1.11.3.min.js"></script>
<script src="js/jquery.validate.js"></script>
<script>
//表单提交验证通过执行
$.validator.setDefaults({
submitHandler: function() {
alert("submitted!");
}
});
$().ready(function() {
// 当提交表单的时候，对表单验证
$("#commentForm").validate();
});
</script>
<style>
#commentForm {width: 670px;}
/*提示信息的样式 */
#commentForm label.error{ color:red;}
</style>
</head>
<body>
<form class="cmxform" id="commentForm" method="get" action="">
<fieldset>
<legend>Please provide your name, email address and a comment</legend>
<p>
<label for="cname">Name</label>
<input id="cname" type="text" name="name" minlength="2" maxlength="16" required>
</p>
<p>
<label for="cemail">E-Mail</label>
<!-- type="email" HTML5新增内容 -->
<input id="cemail" type="email" name="email" required>
</p>
<p>
<label for="curl">URL </label>
<input id="curl" type="url" name="url">
</p>
<p>
<label for="ccreditcard">Creditcard </label>
<input id="ccreditcard" type="creditcard" name="creditcard" >
</p>
<p>
<label for="cdate">Date </label>
<input id="cdate" type="date" name="date">
</p>
<p>
<label for="ccomment">Your comment </label>
<textarea id="ccomment" name="comment" required></textarea>
</p>
<p>
<input class="submit" type="submit" value="Submit">
</p>
</fieldset>
</form>
</body>
</html>
4.在script脚本中写 验证
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery validation plugin</title>
<script src="js/jquery-1.11.3.min.js"></script>
<script src="js/jquery.validate.js"></script>
<script>
$.validator.setDefaults({
submitHandler: function() {
alert("submitted!");
}
});
$().ready(function() {
// validate signup form on keyup and submit
$("#signupForm").validate({
//指定使用的校验规则
rules: {
//firstname 是表单元素 name属性的值
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"
},
//覆盖提示消息，默认有原始的提示信息
messages: {
firstname: "Please enter your firstname",
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"
}
});
// propose username by combining first- and lastname
$("#username").focus(function() {
var firstname = $("#firstname").val();
var lastname = $("#lastname").val();
if (firstname && lastname && !this.value) {
this.value = firstname + "." + lastname;
}
});
//code to hide topic selection, disable for demo
var newsletter = $("#newsletter");
// 判断是否被选中，如果选中返回true
var inital = newsletter.is(":checked");
var topics = $("#newsletter_topics")[inital ? "removeClass" : "addClass"]("gray");
var topicInputs = topics.find("input").attr("disabled", !inital);
// show when newsletter is checked
newsletter.click(function() {
topics[this.checked ? "removeClass" : "addClass"]("gray");
topicInputs.attr("disabled", !this.checked);
});
});
</script>
<style>
#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="signupForm" method="get" action="">
<fieldset>
<legend>Validating a complete form</legend>
<p>
<label for="firstname">Firstname</label>
<input id="firstname" name="firstname" type="text">
</p>
<p>
<label for="lastname">Lastname</label>
<input id="lastname" name="lastname" type="text">
</p>
<p>
<label for="username">Username</label>
<input id="username" name="username" type="text">
</p>
<p>
<label for="password">Password</label>
<input id="password" name="password" type="password">
</p>
<p>
<label for="confirm_password">Confirm password</label>
<input id="confirm_password" name="confirm_password" type="password">
</p>
<p>
<label for="email">Email</label>
<input id="email" name="email" type="email">
</p>
<p>
<label for="agree">Please agree to our policy</label>
<input type="checkbox" class="checkbox" id="agree" name="agree">
</p>
<p>
<label for="newsletter">I'd like to receive the newsletter</label>
<input type="checkbox" class="checkbox" id="newsletter" name="newsletter">
</p>
<fieldset id="newsletter_topics">
<legend>Topics (select at least two)</legend>
<label for="topic_marketflash">
<input type="checkbox" id="topic_marketflash" value="marketflash" name="topic">Marketflash
</label>
<label for="topic_fuzz">
<input type="checkbox" id="topic_fuzz" value="fuzz" name="topic">Latest fuzz
</label>
<label for="topic_digester">
<input type="checkbox" id="topic_digester" value="digester" name="topic">Mailing list digester
</label>
<label for="topic" class="error">Please select at least two topics you'd like to receive.</label>
</fieldset>
<p>
<input class="submit" type="submit" value="Submit">
</p>
</fieldset>
</form>
</body>
</html>
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