Detailed explanation of how to use jQuery Validation PlugIn_jquery
May 16, 2016 pm 03:24 PM
1. Necessary before use
Official website: http://bassistance.de/jquery-plugins/jquery-plugin-validation/
API: http://jquery.bassistance.de/api-browser/plugins.html
Current version: 1.5.5
Requires JQuery version: 1.2.6+, compatible with 1.3.2
2. Default verification rules
- (1)required:true Required fields
- (2)remote:"check.php" Use the ajax method to call check.php to verify the input value
- (3)email:true You must enter an email in the correct format
- (4)url:true You must enter the URL in the correct format
- (5)date:true You must enter the date in the correct format
- (6)dateISO:true You must enter the date (ISO) in the correct format, for example: 2009-06-23, 1998/01/22 Only the format is verified, not the validity
- (7)number:true You must enter a legal number (negative number, decimal)
- (8)digits:true You must enter an integer
- (9)creditcard: You must enter a legal credit card number
- (10)equalTo:"#field" The input value must be the same as #field
- (11)accept: Enter a string with a legal suffix (the suffix of the uploaded file)
- (12)maxlength:5 Enter a string with a maximum length of 5 (Chinese characters count as one character)
- (13)minlength:10 Enter a string with a minimum length of 10 (Chinese characters count as one character)
- (14)rangelength:[5,10] The input length must be a string between 5 and 10") (Chinese characters count as one character)
- (15)range:[5,10] The input value must be between 5 and 10
- (16)max:5 The input value cannot be greater than 5
- (17)min:10 The input value cannot be less than 10
3. Default prompts
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}.")
},
If you need to modify it, you can add it to the js code:
jQuery.extend(jQuery.validator.messages, {
required: "必選字段",
remote: "請修正該字段",
email: "請輸入正確格式的電子郵件",
url: "請輸入合法的網(wǎng)址",
date: "請輸入合法的日期",
dateISO: "請輸入合法的日期 (ISO).",
number: "請輸入合法的數(shù)字",
digits: "只能輸入整數(shù)",
creditcard: "請輸入合法的信用卡號",
equalTo: "請再次輸入相同的值",
accept: "請輸入擁有合法后綴名的字符串",
maxlength: jQuery.validator.format("請輸入一個長度最多是 {0} 的字符串"),
minlength: jQuery.validator.format("請輸入一個長度最少是 {0} 的字符串"),
rangelength: jQuery.validator.format("請輸入一個長度介于 {0} 和 {1} 之間的字符串"),
range: jQuery.validator.format("請輸入一個介于 {0} 和 {1} 之間的值"),
max: jQuery.validator.format("請輸入一個最大為 {0} 的值"),
min: jQuery.validator.format("請輸入一個最小為 {0} 的值")
});
Recommended practice, Put this file into messages_cn.js and introduce it into the page
[codept src="../js/messages_cn.js" type="text/javascript"> [/code
4. How to use
1. Write the verification rules into the control
<script src="../js/jquery.js" type="text/javascript"></script>
<script src="../js/jquery.validate.js" type="text/javascript"></script>
<script src="./js/jquery.metadata.js" type="text/javascript"></script>
$().ready(function() {
$("#signupForm").validate();
});
<form id="signupForm" method="get" action="">
<p>
<label for="firstname">Firstname</label>
<input id="firstname" name="firstname" class="required" />
</p>
<p>
<label for="email">E-Mail</label>
<input id="email" name="email" class="required email" />
</p>
<p>
<label for="password">Password</label>
<input id="password" name="password" type="password" class="{required:true,minlength:5}" />
</p>
<p>
<label for="confirm_password">確認密碼</label>
<input id="confirm_password" name="confirm_password" type="password" class="{required:true,minlength:5,equalTo:'#password'}" />
</p>
<p>
<input class="submit" type="submit" value="Submit"/>
</p>
</form>
To use class="{}", the package must be imported: jquery.metadata.js
You can use the following method to modify the prompt content:
在使用equalTo關(guān)鍵字時，后面的內(nèi)容必須加上引號，如下代碼：
另外一個方式，使用關(guān)鍵字：meta（為了元數(shù)據(jù)使用其他插件你要包裝 你的驗證規(guī)則 在他們自己的項目中可以用這個特殊的選項）
再有一種方式：
$.metadata.setType("attr", "validate");
這樣可以使用validate="{required:true}"的方式，或者class="required"，但class="{required:true,minlength:5}"將不起作用
2.將校驗規(guī)則寫到代碼中
$().ready(function() {
$("#signupForm").validate({
rules: {
firstname: "required",
email: {
required: true,
email: true
},
password: {
required: true,
minlength: 5
},
confirm_password: {
required: true,
minlength: 5,
equalTo: "#password"
}
},
messages: {
firstname: "請輸入姓名",
email: {
required: "請輸入Email地址",
email: "請輸入正確的email地址"
},
password: {
required: "請輸入密碼",
minlength: jQuery.format("密碼不能小于{0}個字符")
},
confirm_password: {
required: "請輸入確認密碼",
minlength: "確認密碼不能小于5個字符",
equalTo: "兩次輸入密碼不一致不一致"
}
}
});
});
//messages處，如果某個控件沒有message，將調(diào)用默認的信息
<form id="signupForm" method="get" action="">
<p>
<label for="firstname">Firstname</label>
<input id="firstname" name="firstname" />
</p>
<p>
<label for="email">E-Mail</label>
<input id="email" name="email" />
</p>
<p>
<label for="password">Password</label>
<input id="password" name="password" type="password" />
</p>
<p>
<label for="confirm_password">確認密碼</label>
<input id="confirm_password" name="confirm_password" type="password" />
</p>
<p>
<input class="submit" type="submit" value="Submit"/>
</p>
</form>
required:true 必須有值
required:"#aa:checked"表達式的值為真，則需要驗證
required:function(){}返回為真，表時需要驗證
后邊兩種常用于，表單中需要同時填或不填的元素
五、實例講解
實例一：精簡驗證，通過表單對象調(diào)用validate()方法進行驗證，驗證規(guī)則通過html標簽屬性定義：以下為常用屬性定義距離
class='required' //必須字段
class='mail' //郵箱驗證
class='url' //URL網(wǎng)址驗證
class='date' //正確的日期 格式滿足 2012，0204，2012-02-04
class='number' //輸入合法的數(shù)字
class='digits' //輸入整數(shù)
minlength='' //最小輸入長度
maxlength='' //最長輸入長度(該值不會提示，當值達到一定字符數(shù)不可再增長)
max='' //輸入的數(shù)值小于指定值
min='' //輸入的數(shù)值大于指定值
<!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>
<title>jQuery PlugIn - 表單驗證插件實例 Validate </title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="jquery.validate.min.js"></script>
<script type="text/javascript" src="messages_cn.js"></script>
<style type="text/css">
* { font-family: Verdana; font-size:13px; }
input[type='text']{width:200px;}
textarea{width:155px;}
label { width: 10em; float: left; }
label.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
</style>
<script>
$(document).ready(function(){
$("#commentForm").validate();
});
</script>
</head>
<body>
<form id="commentForm" method="get" action="" >
<fieldset>
<legend>表單驗證</legend>
<p><label>Name</label><input name="name" class="required" maxlength="4" minlength="2" /></p>
<p><label >E-Mail</label><input name="email" class="required email" /></p>
<p><label >URL</label><input name="url" class="url"/></p>
<p><label>text</label><textarea name="text" cols="22" class="required"></textarea></p>
<p><input class="submit" type="submit" value="提交"/></p>
</fieldset>
</form>
</body>
</html>
實例二：方法驗證，通過自定義表單規(guī)則來驗證表單
<!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>
<title>jQuery PlugIn - 表單驗證插件實例 Validate </title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="jquery.validate.min.js"></script>
<script type="text/javascript" src="messages_cn.js"></script>
<style type="text/css">
* { font-family: Verdana; font-size:13px; }
input[type='text']{width:200px;}
textarea{width:155px;}
.title{float:left;width:10em}
em.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
.field_notice{display:none;}
.checking{display:none;}
</style>
<script>
$(document).ready(function(){
$("#commentForm").validate({
errorPlacement: function(error, element){
var error_td = element.next('em');
error_td.find('.field_notice').hide();
error_td.append(error);
},
success: function(label){
label.addClass('validate_right').text('OK!');
},
onkeyup: false,
rules: {
name: {
required:true,
minlength:3,
maxlength:40,
remote:{
url :'index.php?ajax=1',
type:'get',
data:{
name : function(){
return $('#name').val();
}
},
beforeSend:function(){
var _checking = $('#checking');
_checking.prev('.field_notice').hide();
_checking.next('label').hide();
$(_checking).show();
},
complete :function(){
$('#checking').hide();
}
}
},
email: {required: true, email: true },
url:{required:true,url:true},
text:"required"
},
messages: {
name: {required:"需要輸入名稱", minlength:"名稱長度在3-40個字符之間", maxlength:"名稱長度在3-40個字符之間",remote:"用戶名已存在"},
email: {required:"需要輸入電子郵箱", email:"電子郵箱格式不正確"},
url: {required:"需要輸入URL地址", url:"URL地址格式不正確"},
text:"需要輸入文本內(nèi)容"
},
});
});
</script>
</head>
<body>
<form id="commentForm" method="get" action="" >
<fieldset>
<legend>表單驗證</legend>
<p><label class="title" >Name</label><input id="name" name="name"/>
<em><label class="field_notice"></label><label id="checking" class="checking">檢查中...</label></em>
</p>
<p><label class="title" >E-Mail</label><input name="email"/>
<em><label class="field_notice"></label></em>
</p>
<p><label class="title" >URL</label><input name="url"/>
<em><label class="field_notice"></label></em>
</p>
<p><label class="title" >text</label><textarea name="text" cols="22"></textarea>
<em><label class="field_notice"></label></em>
</p>
<p><input class="submit" type="submit" value="提交"/></p>
</fieldset>
</form>
</body>
</html>
以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助。
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