jQuery验证控件jquery.validate.js使用说明+中文API

清疚 2022-04-14 03:40 241阅读 0赞

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### 一、导入js库 ###

### 二、默认校验规则 ###

(1)required:true                必输字段  
(2)remote:"check.php"      使用ajax方法调用check.php验证输入值  
(3)email:true                      必须输入正确格式的电子邮件  
(4)url:true                          必须输入正确格式的网址  
(5)date:true                       必须输入正确格式的日期 日期校验ie6出错，慎用  
(6)dateISO:true                必须输入正确格式的日期(ISO)，例如：2009-06-23，1998/01/22 只验证格式，不验证有效性  
(7)number:true                 必须输入合法的数字(负数，小数)  
(8)digits:true                    必须输入整数  
(9)creditcard:                   必须输入合法的信用卡号  
(10)equalTo:"\#field"        输入值必须和\#field相同  
(11)accept:                      输入拥有合法后缀名的字符串（上传文件的后缀）  
(12)maxlength:5              输入长度最多是5的字符串(汉字算一个字符)  
(13)minlength:10             输入长度最小是10的字符串(汉字算一个字符)  
(14)rangelength:\[5,10\]    输入长度必须介于 5 和 10 之间的字符串")(汉字算一个字符)  
(15)range:\[5,10\]              输入值必须介于 5 和 10 之间  
(16)max:5                        输入值不能大于5  
(17)min:10                       输入值不能小于10

### 三、默认的提示 ###

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代码中加入：

jQuery.extend(jQuery.validator.messages, \{  
  required: "必选字段",  
  remote: "请修正该字段",  
  email: "请输入正确格式的电子邮件",  
  url: "请输入合法的网址",  
  date: "请输入合法的日期",  
  dateISO: "请输入合法的日期 (ISO).",  
  number: "请输入合法的数字",  
  digits: "只能输入整数",  
  creditcard: "请输入合法的信用卡号",  
  equalTo: "请再次输入相同的值",  
  accept: "请输入拥有合法后缀名的字符串",  
  maxlength: jQuery.validator.format("请输入一个 长度最多是 \{0\} 的字符串"),  
  minlength: jQuery.validator.format("请输入一个 长度最少是 \{0\} 的字符串"),  
  rangelength: jQuery.validator.format("请输入 一个长度介于 \{0\} 和 \{1\} 之间的字符串"),  
  range: jQuery.validator.format("请输入一个介于 \{0\} 和 \{1\} 之间的值"),  
  max: jQuery.validator.format("请输入一个最大为\{0\} 的值"),  
  min: jQuery.validator.format("请输入一个最小为\{0\} 的值")  
\});

推荐做法，将此文件放入messages\_cn.js中，在页面中引入 
<script src="../js/messages\_cn.js" type="text/javascript"></script>

### 四、使用方式 ###

1.将校验规则写到控件中<script src="../js/jquery.js" type="text/javascript"></script>

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

2.将校验规则写到js代码中

$().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: "请输入姓名",
       email: {
        required: "请输入Email地址",
        email: "请输入正确的email地址"
       },
       password: {
        required: "请输入密码",
        minlength: jQuery.format("密码不能小于{0}个字 符")
       },
       confirm_password: {
        required: "请输入确认密码",
        minlength: "确认密码不能小于5个字符",
        equalTo: "两次输入密码不一致不一致"
       }
      }
        });
    });

//messages处，如果某个控件没有message，将调用默认的信息

<form id="signupForm" method="get" action="">
     
         <label for="firstname">Firstname</label>
         <input id="firstname" name="firstname" />
     
  
   <label for="email">E-Mail</label>
   <input id="email" name="email" />
  
  
   <label for="password">Password</label>
   <input id="password" name="password" type="password" />
  
  
   <label for="confirm_password">确认密码</label>
   <input id="confirm_password" name="confirm_password" type="password" />
  
     
         <input class="submit" type="submit" value="Submit"/>
     
 </form>

required:true 必须有值  
required:"\#aa:checked"表达式的值为真，则需要验证  
required:function()\{\}返回为真，表时需要验证  
后边两种常用于，表单中需要同时填或不填的元素

### 五、常用方法及注意问题 ###

1.用其他方式替代默认的SUBMIT  
$().ready(function() \{  
 $("\#signupForm").validate(\{  
        submitHandler:function(form)\{  
            alert("submitted");     
            form.submit();  
        \}      
    \});  
\});

使用ajax方式

$(".selector").validate(\{       
 submitHandler: function(form)   
   \{        
      $(form).ajaxSubmit();       
   \}    
 \})

可以设置validate的默认值，写法如下：  
$.validator.setDefaults(\{  
 submitHandler: function(form) \{ alert("submitted!");form.submit(); \}  
\});

如果想提交表单, 需要使用form.submit()而不要使用$(form).submit()

2.debug，只验证不提交表单  
如果这个参数为true，那么表单不会提交，只进行检查，调试时十分方便

$().ready(function() \{  
 $("\#signupForm").validate(\{  
        debug:true  
    \});  
\});  
如果一个页面中有多个表单都想设置成为debug，用  
$.validator.setDefaults(\{  
   debug: true  
\})

3.ignore：忽略某些元素不验证  
ignore: ".ignore"  
4.更改错误信息显示的位置  
errorPlacement：Callback

Default: 把错误信息放在验证的元素后面   
指明错误放置的位置，默认情况是：error.appendTo(element.parent());即把错误信息放在验证的元素后面   
errorPlacement: function(error, element) \{    
    error.appendTo(element.parent());    
\}

//示例：

<tr>
     <td class="label"><label id="lfirstname" for="firstname">First Name</label></td>
     <td class="field"><input id="firstname" name="firstname" type="text" value="" maxlength="100" /></td>
     <td class="status"></td>
 </tr>
 <tr>
     <td style="padding-right: 5px;">
         <input id="dateformat_eu" name="dateformat" type="radio" value="0" />
         <label id="ldateformat_eu" for="dateformat_eu">14/02/07</label>
     </td>
     <td style="padding-left: 5px;">
         <input id="dateformat_am" name="dateformat" type="radio" value="1"  />
         <label id="ldateformat_am" for="dateformat_am">02/14/07</label>
     </td>
     <td></td>
 </tr>
 <tr>
     <td class="label"> </td>
     <td class="field" colspan="2">
         <div id="termswrap">
             <input id="terms" type="checkbox" name="terms" />
             <label id="lterms" for="terms">I have read and accept the Terms of Use.</label>
         </div>
     </td>
 </tr>
 
 errorPlacement: function(error, element) {
     if ( element.is(":radio") )
         error.appendTo( element.parent().next().next() );
     else if ( element.is(":checkbox") )
         error.appendTo ( element.next() );
     else
         error.appendTo( element.parent().next() );
 }

代码的作用是：一般情况下把错误信息显示在<td class="status"></td>中，如果是radio显示在<td></td>中，如果是 checkbox显示在内容的后面

errorClass：String  Default: "error"   
指定错误提示的css类名，可以自定义错误提示的样式

errorElement：String  Default: "label"   
用什么标签标记错误，默认的是label你可以改成em

errorContainer：Selector   
显示或者隐藏验证信息，可以自动实现有错误信息出现时把容器属性变为显示，无错误时隐藏，用处不大  
errorContainer: "\#messageBox1, \#messageBox2"

errorLabelContainer：Selector  
把错误信息统一放在一个容器里面。

wrapper：String  
用什么标签再把上边的errorELement包起来

一般这三个属性同时使用，实现在一个容器内显示所有错误提示的功能，并且没有信息时自动隐藏

errorContainer: "div.error",  
errorLabelContainer: $("\#signupForm div.error"),  
wrapper: "li"

5更改错误信息显示的样式  
设置错误提示的样式，可以增加图标显示，在该系统中已经建立了一个validation.css专门用于维护校验文件的样式

input.error \{ border: 1px solid red; \}  
label.error \{  
  background:url("./demo/images/unchecked.gif") no-repeat 0px 0px;

padding-left: 16px;

padding-bottom: 2px;

font-weight: bold;

color: \#EA5200;  
\}  
label.checked \{  
  background:url("./demo/images/checked.gif") no-repeat 0px 0px;  
\}

6每个字段验证通过执行函数 
success：String,Callback 
要验证的元素通过验证后的动作，如果跟一个字符串，会当做一个css类，也可跟一个函数 
success: function(label) \{ 
    // set &nbsp; as text for IE 
    label.html("&nbsp;").addClass("checked"); 
    //label.addClass("valid").text("Ok!") 
\} 
添加"valid" 到验证元素, 在CSS中定义的样式<style>label.valid \{\}</style> 
success: "valid"

7验证的触发方式修改  
下面的虽然是boolean型的，但建议除非要改为false,否则别乱添加。

onsubmit：Boolean  Default: true   
提交时验证. 设置唯false就用其他方法去验证  
onfocusout：Boolean  Default: true   
失去焦点是验证(不包括checkboxes/radio buttons)  
onkeyup：Boolean  Default: true   
在keyup时验证.  
onclick：Boolean  Default: true   
在checkboxes 和 radio 点击时验证  
focusInvalid：Boolean  Default: true   
提交表单后，未通过验证的表单(第一个或提交之前获得焦点的未通过验证的表单)会获得焦点  
focusCleanup：Boolean  Default: false   
如果是true那么当未通过验证的元素获得焦点时，移除错误提示。避免和 focusInvalid 一起用

// 重置表单  
$().ready(function() \{  
 var validator = $("\#signupForm").validate(\{  
        submitHandler:function(form)\{  
            alert("submitted");     
            form.submit();  
        \}      
    \});  
    $("\#reset").click(function() \{  
        validator.resetForm();  
    \});

\});

8异步验证  
remote：URL  
使用ajax方式进行验证，默认会提交当前验证的值到远程地址，如果需要提交其他的值，可以使用data选项

remote: "check-email.php"

remote: \{  
    url: "check-email.php",     //后台处理程序  
    type: "post",               //数据发送方式  
    dataType: "json",           //接受数据格式     
    data: \{                     //要传递的数据  
        username: function() \{  
            return $("\#username").val();  
        \}  
    \}  
\}

远程地址只能输出 "true" 或 "false"，不能有其它输出

9添加自定义校验  
addMethod：name, method, message  
自定义验证方法

// 中文字两个字节 
jQuery.validator.addMethod("byteRangeLength", function(value, element, param) \{ 
    var length = value.length; 
    for(var i = 0; i < value.length; i++)\{ 
        if(value.charCodeAt(i) > 127)\{ 
            length++; 
        \} 
    \} 
  return this.optional(element) || ( length >= param\[0\] && length <= param\[1\] );    
\}, $.validator.format("请确保输入的值在\{0\}-\{1\}个字节之间(一个中文字算2个字节)"));

// 邮政编码验证     
jQuery.validator.addMethod("isZipCode", function(value, element) \{     
    var tel = /^\[0-9\]\{6\}$/;  
    return this.optional(element) || (tel.test(value));  
\}, "请正确填写您的邮政编码");

1.要在additional-methods.js文件中添加或者在jquery.validate.js添加  
建议一般写在additional-methods.js文件中

2.在messages\_cn.js文件添加：isZipCode: "只能包括中文字、英文字母、数字和下划线",

调用前要添加对additional-methods.js文件的引用。

10radio和checkbox、select的验证

1.radio的required表示必须选中一个 
<input  type="radio" id="gender\_male" value="m" name="gender" class="\{required:true\}" /> 
<input  type="radio" id="gender\_female" value="f" name="gender"/>

2.checkbox的required表示必须选中 
<input type="checkbox" class="checkbox" id="agree" name="agree" class="\{required:true\}" />

checkbox的minlength表示必须选中的最小个数,maxlength表示最大的选中个数,rangelength:\[2,3\]表 示选中个数区间

3.select的required表示选中的value不能为空 
<select id="jungle" name="jungle" title="Please select something!" class="\{required:true\}"> 
    <option value=""></option> 
    <option value="1">Buga</option> 
    <option value="2">Baga</option> 
    <option value="3">Oi</option> 
</select>

select的minlength表示选中的最小个数（可多选的select）,maxlength表示最大的选中个 数,rangelength:\[2,3\]表示选中个数区间 
<select id="fruit" name="fruit" title="Please select at least two fruits" class="\{required:true, minlength:2\}" multiple="multiple"> 
    <option value="b">Banana</option> 
    <option value="a">Apple</option> 
    <option value="p">Peach</option> 
    <option value="t">Turtle</option> 
</select>

jQuery.validate 中文API

<table style="width:680px;"> 
 <tbody> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; 名称 </td> 
 <td style="vertical-align:top;">&nbsp; 返回类型 </td> 
 <td style="vertical-align:top;">&nbsp; 描述 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; validate(options) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Validator </td> 
 <td style="vertical-align:top;">&nbsp; 验证所选的FORM </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; valid() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 检查是否验证通过 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; rules() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Options </td> 
 <td style="vertical-align:top;">&nbsp; 返回元素的验证规则 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; rules("add",rules) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Options </td> 
 <td style="vertical-align:top;">&nbsp; 增加验证规则 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; rules("remove",rules) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Options </td> 
 <td style="vertical-align:top;">&nbsp; 删除验证规则 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; removeAttrs(attributes) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Options </td> 
 <td style="vertical-align:top;">&nbsp; 删除特殊属性并且返回他们 </td> 
 </tr> 
 <tr> 
 <td colspan="3" style="vertical-align:top;">&nbsp; Custom selectors </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; :blank </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Validator </td> 
 <td style="vertical-align:top;">&nbsp; 没有值的筛选器 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; :filled </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Array &lt;Element&nbsp; &gt; </td> 
 <td style="vertical-align:top;">&nbsp; 有值的筛选器 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; :unchecked </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Array &lt;Element&nbsp; &gt; </td> 
 <td style="vertical-align:top;">&nbsp; 没选择的元素的筛选器 </td> 
 </tr> 
 <tr> 
 <td colspan="3" style="vertical-align:top;">&nbsp; Utilities </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; jQuery.format &nbsp; (template,argument&nbsp; ,argumentN...) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:String </td> 
 <td style="vertical-align:top;">&nbsp; 用参数代替模板中的&nbsp; {n} </td> 
 </tr> 
 </tbody> 
</table>

<table style="width:680px;"> 
 <tbody> 
 <tr> 
 <td colspan="3" style="vertical-align:top;">&nbsp; Validator: </td> 
 </tr> 
 <tr> 
 <td colspan="3" style="vertical-align:top;">&nbsp; validate方法返回一个Validator对象,它有很多方法,&nbsp;让你能使用引发校验程序或者改变form的内容. validator对象有很多方法,但下面只是列出常用的 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; form() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证form返回成功还是失败 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; element(element) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证单个元素是成功还是失败 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; resetForm() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:undefined </td> 
 <td style="vertical-align:top;">&nbsp; 把前面验证的FORM恢复到验证前原来的状态 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; showErrors(errors) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:undefined </td> 
 <td style="vertical-align:top;">&nbsp; 显示特定的错误信息 </td> 
 </tr> 
 <tr> 
 <td colspan="3" style="vertical-align:top;"> &nbsp; </td> 
 </tr> 
 <tr> 
 <td colspan="3" style="vertical-align:top;">&nbsp; Validator functions: </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; setDefaults(defaults) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:undefined </td> 
 <td style="vertical-align:top;">&nbsp; 改变默认的设置 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; addMethod(name,method,message) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:undefined </td> 
 <td style="vertical-align:top;">&nbsp; 添加一个新的验证方法.&nbsp;必须包括一个独一无二的名字,一个JAVASCRIPT的方法和一个默认的信息 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; addClassRules(name,rules) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:undefined </td> 
 <td style="vertical-align:top;">&nbsp; 增加组合验证类型 在一个类里面用多种验证方法里比较有用 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; addClassRules(rules) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:undefined </td> 
 <td style="vertical-align:top;">&nbsp; 增加组合验证类型 在一个类里面用多种验证方法里比较有用,这个是一下子加多个 </td> 
 </tr> 
 </tbody> 
</table>

<table style="width:680px;"> 
 <tbody> 
 <tr> 
 <td colspan="3" style="vertical-align:top;">&nbsp; 内置验证方式： </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; required() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 必填验证元素 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; required(dependency-expression) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 必填元素依赖于表达式的结果 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; required(dependency-callback) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 必填元素依赖于回调函数的结果 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; remote(url) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 请求远程校验。url通常是一个远程调用方法 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; minlength(length) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 设置最小长度 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; maxlength(length) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 设置最大长度 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; rangelength(range) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 设置一个长度范围[min,max] </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; min(value) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 设置最大值 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; max(value) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 设置最小值 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; email() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证电子邮箱格式 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; range(range) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 设置值的范围 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; url() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证URL格式 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; date() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证日期格式(类似30/30/2008的格式,不验证日期准确性只验证格式) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; dateISO() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证ISO类型的日期格式 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; dateDE() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证德式的日期格式（29.04.1994 or&nbsp; 1.1.2006） </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; number() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证十进制数字（包括小数的） </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; digits() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证整数 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; creditcard() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证信用卡号 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; accept(extension) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证相同后缀名的字符串 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; equalTo(other) </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证两个输入框的内容是否相同 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; phoneUS() </td> 
 <td style="vertical-align:top;">&nbsp; 返回:Boolean </td> 
 <td style="vertical-align:top;">&nbsp; 验证美式的电话号码 </td> 
 </tr> 
 </tbody> 
</table>

<table style="width:680px;"> 
 <tbody> 
 <tr> 
 <td colspan="2" style="vertical-align:top;">&nbsp; validate ()的可选项： </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; debug:进行调试模式（表单不提交）: </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate &nbsp; ({ &nbsp; &nbsp;&nbsp;&nbsp;debug:true &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; 把调试设置为默认: </td> 
 <td style="vertical-align:top;">&nbsp; $.validator.setDefaults({ &nbsp; &nbsp;&nbsp;&nbsp;debug:true &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; submitHandler: &nbsp; 通过验证后运行的函数,里面要加上表单提交的函数,否则表单不会提交 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;submitHandler:function(form)&nbsp; { &nbsp; $(form).ajaxSubmit(); &nbsp; &nbsp;&nbsp;&nbsp;} &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; ignore: &nbsp; 对某些元素不进行验证 </td> 
 <td style="vertical-align:top;">&nbsp; $("#myform").validate({ &nbsp; &nbsp;&nbsp;&nbsp;ignore:".ignore" &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; rules: &nbsp; 自定义规则,key:value的形式,key是要验证的元素,value可以是字符串或对象 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;rules:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;name:"required", &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;email:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;required:true, &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;email:true &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} &nbsp; &nbsp;&nbsp;&nbsp;} &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; messages: &nbsp; 自定义的提示信息key:value的形式key是要验证的元素,值是字符串或函数 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;rules:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;name:"required", &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;email:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;required:true, &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;email:true &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} &nbsp; &nbsp;&nbsp;&nbsp;}, &nbsp; &nbsp;&nbsp;&nbsp;messages:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;name:"Name不能为空", &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;email:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; required:"E-mail不能为空", &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;email:"E-mail地址不正确" &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} &nbsp; &nbsp;&nbsp;&nbsp;} &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; groups: &nbsp; 对一组元素的验证,用一个错误提示,用error Placement控制把出错信息放在哪里 </td> 
 <td style="vertical-align:top;">&nbsp; $("#myform").validate({ &nbsp; &nbsp;&nbsp;groups:{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;username:"fname&nbsp; lname" &nbsp; &nbsp;&nbsp;}, &nbsp; &nbsp;&nbsp; errorPlacement:function(error,element) { &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (element.attr("name") ==&nbsp; "fname" || element.attr("name") == "lname") &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; error.insertAfter("#lastname"); &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; error.insertAfter(element); &nbsp; &nbsp;&nbsp;&nbsp;}, &nbsp; &nbsp;&nbsp;&nbsp;debug:true &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; Onubmit Boolean&nbsp;默认:true &nbsp; 是否提交时验证 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp; onsubmit:false &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; onfocusout Boolean&nbsp;默认:true&nbsp;&nbsp; &nbsp; 是否在获取焦点时验证 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp; onfocusout:false &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; onkeyup Boolean&nbsp;默认:true&nbsp;&nbsp; &nbsp; 是否在敲击键盘时验证 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;onkeyup:false &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; onclick Boolean&nbsp;默认:true &nbsp; 是否在鼠标点击时验证（一般验证checkbox,radiobox） </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;onclick:false &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; focusInvalid Boolean&nbsp;默认:true &nbsp; 提交表单后,未通过验证的表单(第一个或提交之前获得焦点的未通过验证的表单)会获得焦点 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;focusInvalid:false &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; focusCleanup Boolean&nbsp;默认:false &nbsp; 当未通过验证的元素获得焦点时,并移除错误提示（避免和&nbsp;focusInvalid.一起使用） </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;focusCleanup:true &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; errorClass String&nbsp;默认:"error" &nbsp; 指定错误提示的css类名,可以自定义错误提示的样式 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp; errorClass:"invalid" &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; errorElement String&nbsp;默认:"label" &nbsp; 使用什么标签标记错误 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate &nbsp; &nbsp;&nbsp;&nbsp;errorElement:"em" &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; wrapper String &nbsp; 使用什么标签再把上边的errorELement包起来 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp;wrapper:"li" &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; errorLabelContainer Selector &nbsp; 把错误信息统一放在一个容器里面 </td> 
 <td style="vertical-align:top;">&nbsp; $("#myform").validate({ &nbsp; &nbsp;&nbsp;&nbsp; errorLabelContainer:"#messageBox", &nbsp; &nbsp;&nbsp;&nbsp;wrapper:"li", &nbsp; &nbsp;&nbsp;&nbsp;submitHandler:function() {&nbsp; alert("Submitted!") } &nbsp; }) &nbsp; &nbsp; </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; showErrors: &nbsp; 跟一个函数,可以显示总共有多少个未通过验证的元素 </td> 
 <td style="vertical-align:top;">&nbsp; $(".selector").validate({ &nbsp; &nbsp;&nbsp;&nbsp; showErrors:function(errorMap,errorList) { &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$("#summary").html("Your&nbsp; form contains " + this.numberOfInvalids() + " errors,see details&nbsp; below."); &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.defaultShowErrors(); &nbsp; &nbsp;&nbsp;&nbsp;} &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; errorPlacement: &nbsp; 跟一个函数,可以自定义错误放到哪里 </td> 
 <td style="vertical-align:top;">&nbsp; $("#myform").validate({ &nbsp; &nbsp;&nbsp; rrorPlacement:function(error,element) {&nbsp;&nbsp; error.appendTo(element.parent("td").next("td")); &nbsp; &nbsp;&nbsp;&nbsp;}, &nbsp; &nbsp;&nbsp;&nbsp;debug:true &nbsp; &nbsp; &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; success: &nbsp; 要验证的元素通过验证后的动作,如果跟一个字符串,会当做一个css类,也可跟一个函数 </td> 
 <td style="vertical-align:top;">&nbsp; $("#myform").validate({ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; success:"valid", &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;submitHandler:function()&nbsp; { alert("Submitted!") } &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; highlight: &nbsp; 可以给未通过验证的元素加效果,闪烁等 </td> 
 <td style="vertical-align:top;">&nbsp; &nbsp; </td> 
 </tr> 
 </tbody> 
</table>

<table style="width:680px;"> 
 <tbody> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; addMethod(name,method,message)方法： </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; 参数name是添加的方法的名字 </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; 参数method是一个函数,接收三个参数(value,element,param)&nbsp; value是元素的值,element是元素本身&nbsp; param是参数,我们可以用addMethod来添加除built-in Validation&nbsp; methods之外的验证方法 比如有一个字段,只能输一个字母,范围是a-f,写法如下: &nbsp; &nbsp; &nbsp; $.validator.addMethod("af",function(value,element,params){ &nbsp; &nbsp;&nbsp;&nbsp; if(value.length&gt;1){ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;return false; &nbsp; &nbsp;&nbsp;&nbsp;} &nbsp; &nbsp;&nbsp;&nbsp;if(value&gt;=params[0]&nbsp; &amp;&amp; value&lt;=params[1]){ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;return true; &nbsp; &nbsp;&nbsp;&nbsp;}else{ &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;return false; &nbsp; &nbsp;&nbsp;&nbsp;} &nbsp; },"必须是一个字母,且a-f"); &nbsp; 用的时候,比如有个表单字段的id="username",则在rules中写 &nbsp; username:{ &nbsp; &nbsp;&nbsp;&nbsp;af:["a","f"] &nbsp; } &nbsp; &nbsp; &nbsp; addMethod的第一个参数,就是添加的验证方法的名子,这时是af &nbsp; addMethod的第三个参数,就是自定义的错误提示,这里的提示为:"必须是一个字母,且a-f" &nbsp; addMethod的第二个参数,是一个函数,这个比较重要,决定了用这个验证方法时的写法 &nbsp; 如果只有一个参数,直接写,如果af:"a",那么a就是这个唯一的参数,如果多个参数,用在[]里,用逗号分开 </td> 
 </tr> 
 </tbody> 
</table>

<table style="width:680px;"> 
 <tbody> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; meta String方式： </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; $("#myform").validate({ &nbsp; &nbsp;&nbsp;&nbsp;meta:"validate", &nbsp; &nbsp;&nbsp;&nbsp;submitHandler:function() {&nbsp; alert("Submitted!") } &nbsp; }) </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;">&nbsp; &lt;script type="text/javascript"&nbsp; src="js/jquery.metadata.js"&gt;&lt;/script&gt; &nbsp; &lt;script type="text/javascript"&nbsp; src="js/jquery.validate.js"&gt;&lt;/script&gt; &nbsp; &lt;form id="myform"&gt; &nbsp; &nbsp;&nbsp;&lt;input type="text"&nbsp; name="email" class="{validate:{ required:true,email:true }}" /&gt; &nbsp; &nbsp;&nbsp;&lt;input type="submit"&nbsp; value="Submit" /&gt; &nbsp; &lt;/form&gt; </td> 
 </tr> 
 </tbody> 
</table>

列子：

<!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 runat="server">
 <title>JQuery表单验证插件jQuery.validate.js</title>
 <style type="text/css">
 /******/
 form.cmxform label.error, label.error {
 color: red;
 font-style: italic;
 }
 </style>
 </head>
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
 <script type="text/javascript" src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js"></script>
 <body>
 <form class="cmxform" id="commentForm" method="get" action="">
 <fieldset>
 <legend>注册账号</legend>
 
 <label for="cusername">用户名</label>
 <input id="username" name="username" />
 
 <label for="cemail">邮箱</label>
 <input id="email" name="email" />
 
 
 <label for="cpassword">密码</label>
 <input type="password" id="password" name="password" value="" />
 
 
 <label for="cconfirm_password">确认密码</label>
 <input type="password" id="confirm_password" name="confirm_password" value="" />
 
 
 <input class="submit" type="submit" value="提交"/>
 
 </fieldset>
 </form>
 </body>
 </html>
 <script type="text/javascript" >
 
 $.validator.setDefaults({
 submitHandler: function() {
 alert("已经提交!");
 }
 });
 
 $().ready(function() {
 
 $("#commentForm").validate({
 rules: {
 username: {
 required:true,
 minlength:2
 },
 email: {
 required: true,
 email: true
 },
 password: {
 required: true,
 minlength: 6
 },
 confirm_password: {
 required: true,
 minlength: 6,
 equalTo: "#password"
 }
 },
 messages: {
 username: {
 required:"用户名必填",
 minlength:"至少2个字符"
 },
 email:"请输入一个邮件地址",
 password: {
 required: "请输入密码",
 minlength: "密码不能少于6个字符"
 },
 confirm_password: {
 required: "请输入确认密码",
 minlength: "确认密码不能少于6个字符",
 equalTo: "密码输入不一致"
 }
 }
 });
 
 });
 </script>

[Link 1]: http://bassistance.de/jquery-plugins/jquery-plugin-validation