jquery validate 詳解一

jQuery校驗

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>

2、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:                    輸入擁有合法後綴名的字符串（上傳文件的後綴）
(12)maxlength:5                輸入長度最可能是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]         輸入長度必須介於 5 和 10 之間的字符串")(漢字算一個字符)
(15)range:[5,10]               輸入值必須介於 5 和 10 之間
(16)max:5                      輸入值不能大於5
(17)min:10                     輸入值不能小於10

 

3、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}.")
},

如須要修改，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: "請輸入擁有合法後綴名的字符串",
  maxlength: jQuery.validator.format("請輸入一個 長度最可能是 {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 一個長度介於 {0} 和 {1} 之間的字符串"),
  range: jQuery.validator.format("請輸入一個介於 {0} 和 {1} 之間的值"),
  max: jQuery.validator.format("請輸入一個最大爲{0} 的值"),
  min: jQuery.validator.format("請輸入一個最小爲{0} 的值")
});

推薦作法，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>

4、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

能夠使用以下的方法，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，後面的內容必須加上引號，以下代碼：
class="{required:true,minlength:5,equalTo:'#password'}"

 

 

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("密碼不能小於{0}個字 符")
   },
   confirm_password: {
    required: "請輸入確認密碼",
    minlength: "確認密碼不能小於5個字符",
    equalTo: "兩次輸入密碼不一致不一致"
   }
  }
    });
});

//messages處，若是某個控件沒有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"表達式的值爲真，則須要驗證 required:function(){}返回爲真，表時須要驗證後邊兩種經常使用於，表單中須要同時填或不填的元素