官網地址：http://bassistance.de/jquery-plugins/jquery-plugin-validation

一導入js庫

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

二、默認校驗規則

(1)required:true???????????????必輸字段
(2)remote:"check.php"??????????使用ajax方法調用check.php驗證輸入值
(3)email:true??????????????????必須輸入正確格式的電子郵件
(4)url:true????????????????????必須輸入正確格式的網址
(5)date:true???????????????????必須輸入正確格式的日期 日期校驗ie6出錯，慎用
(6)dateISO:true????????????????必須輸入正確格式的日期(ISO)，例如：2009-06-23，1998/01/22?只驗證格式，不驗證有效性
(7)number:true?????????????????必須輸入合法的數字(負數，小數)
(8)digits:true?????????????????必須輸入整數
(9)creditcard:?????????????????必須輸入合法的信用卡號
(10)equalTo:"#field"???????????輸入值必須和#field相同
(11)accept:????????????????????輸入擁有合法后綴名的字符串（上傳文件的后綴）
(12)maxlength:5????????????????輸入長度最多是5的字符串(漢字算一個字符)
(13)minlength:10???????????????輸入長度最小是10的字符串(漢字算一個字符)
(14)rangelength:[5,10]?????????輸入長度必須介于?5?和?10?之間的字符串")(漢字算一個字符)
(15)range:[5,10]???????????????輸入值必須介于?5?和?10?之間
(16)max:5??????????????????????輸入值不能大于5
(17)min:10?????????????????????輸入值不能小于10

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三、默認的提示

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}.")
},

如需要修改，可在js代碼中加入：

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: "請輸入合法的數字",
??digits: "只能輸入整數",
??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")
});

推薦做法，將此文件放入messages_cn.js中，在頁面中引入
<script src="../js/messages_cn.js" type="text/javascript"></script>

四、使用方式

1.將校驗規則寫到控件中

<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>

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

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2.將校驗規則寫到js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

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轉載于:https://www.cnblogs.com/anbylau2130/archive/2013/05/21/3090158.html

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