jquery.validate一些方法解释及用例

Name Type 
validate( options )  Returns: Validator  
验证所选的FORM 
valid( )  Returns: Boolean  
检查是否验证通过 

rules( )  Returns: Options  
返回元素的验证规则 
rules( "add", rules )  Returns: Options  
增加验证规则。 
rules( "remove", rules )  Returns: Options  
删除验证规则 
removeAttrs( attributes )  Returns: Options  
删除特殊属性并且返回他们 

Custom selectors 
Name Type 
Custom selectors: Name Type 
:blank  Returns: Array <Element >  
没有值的筛选器 
:filled  Returns: Array <Element >  
有值的筛选器 
:unchecked  Returns: Array <Element >  
没选择的元素的筛选器 

Utilities 
Name Type 
String utilities: Name Type 
jQuery.format( template, argument , argumentN... )  Returns: String  
用参数代替模板中的 {n}。 

Validator 
validate方法返回一个Validator对象, 它有很多方法， 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. 

Name Type 
Validator methods: Name Type 
form( )  Returns: Boolean  
验证form返回成功还是失败 
element( element )  Returns: Boolean  
验证单个元素是成功还是失败 
resetForm( )  Returns: undefined  
把前面验证的FORM恢复到验证前原来的状态  
showErrors( errors )  Returns: undefined  
显示特定的错误信息 

There are a few static methods on the validator object: 

Name Type 
Validator functions: Name Type 
setDefaults( defaults )  Returns: undefined  
改变默认的设置 
addMethod( name, method, message )  Returns: undefined  
添加一个新的验证方法. 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 
addClassRules( name, rules )  Returns: undefined  
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 
addClassRules( rules )  Returns: undefined  
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 

[edit ] 
List of built-in Validation methods 
A set of standard validation methods is provided: 

Name Type 
Methods: 
  

Name Type 
required( )  Returns: Boolean  
必填验证元素 
required( dependency-expression )  Returns: Boolean  
必填元素依赖于表达式的结果. 
required( dependency-callback )  Returns: Boolean  
必填元素依赖于回调函数的结果. 
remote( url )  Returns: Boolean  
请求远程校验。url通常是一个远程调用方法 

minlength( length )  Returns: Boolean  
设置最小长度 
maxlength( length )  Returns: Boolean  
设置最大长度 
rangelength( range )  Returns: Boolean  
设置一个长度范围[min,max] 
min( value )  Returns: Boolean  
设置最小值. 
max( value )  Returns: Boolean  
设置最大值. 
range( range )  Returns: Boolean  
设置值的范围  
email( )  Returns: Boolean  
验证电子邮箱格式  
url( )  Returns: Boolean  
验证连接格式  
date( )  Returns: Boolean  
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) 
dateISO( )  Returns: Boolean  
研制ISO类型的日期格式 
dateDE( )  Returns: Boolean  
验证德式的日期格式（29.04.1994 or 1.1.2006） 
number( )  Returns: Boolean  
验证十进制数字（包括小数的） 
numberDE( )  Returns: Boolean  
Makes the element require a decimal number with german format. 
digits( )  Returns: Boolean  
验证整数 
creditcard( )  Returns: Boolean  
验证信用卡号 
accept( extension )  Returns: Boolean  
验证相同后缀名的字符串 

equalTo( other )  Returns: Boolean  
验证两个输入框的内容是否相同 

  

  

Name Type 
phoneUS( )  Returns: Boolean  
验证美式的电话号码 


validate ()的可选项 
debug：进行调试模式 
$(".selector").validate  ({ 
   debug: true 
}) 
  把调试设置为默认 

$  .validator.setDefaults  ({ 
   debug: true 
}) 
submitHandler：用其他方式替代默认的SUBMIT,比如用AJAX的方式提交 

$  (".selector").validate  ({ 
   submitHandler: function(form) { 
   $  (form).ajaxSubmit(); 
   } 
}) 
ignore：忽略某些元素不验证 

$  ("#myform").validate  ({ 
   ignore: ".ignore" 
}) 
rules： 默认下根据form的classes, attributes, metadata判断，但也可以在validate函数里面声明 
Key/value 可自定义规则. Key是对象的名字 value是对象的规则，可以组合使用 class/attribute/metadata rules. 

以下代码特别验证selector类中name='name'是必填项并且 email是既是必填又要符合email的格式 

$  (".selector").validate  ({ 
   rules: { 
     // simple rule, converted to {required:true} 
     name: "required", 
     // compound rule 
     email: { 
       required: true, 
       email: true 
     } 
   } 
}) 
messages：更改默认的提示信息 

$  (".selector").validate  ({ 
   rules: { 
     name: "required", 
     email: { 
       required: true, 
       email: true 
     } 
   }, 
   messages: { 
     name: "Please specify your name", 
     email: { 
       required: "We need your email address to contact you", 
       email: "Your email address must be in the format of [email protected]" 
     } 
   } 
}) 
groups：定义一个组，把几个地方的出错信息同意放在一个地方，用error Placement控制把出错信息放在哪里 

$  ("#myform").validate  ({ 
  groups: { 
    username: "fname lname" 
  }, 
  error 
Placement: function(error 
, element) { 
     if (element.attr("name") == "fname" || element.attr("name") == "lname" ) 
       error 
.insertAfter("#lastname"); 
     else 
       error 
.insertAfter(element); 
   }, 
   debug:true 
}) 
nsubmit Boolean  Default: true  
提交时验证. 设置唯false就用其他方法去验证 
Code 
不用onsubmit验证,就允许用户无论用什么方法去验证,而是提交时, 用 keyup/blur/click 等方法. 

$  (".selector").validate  ({ 
   onsubmit: false 
}) 

onfocusout Boolean  Default: true  
Validate elements (except checkboxes/radio buttons) on blur. If nothing is entered, all rules are skipped, except when the field was already marked as invalid. 
Code 
Disables onblur validation. 

$  (".selector").validate  ({ 
   onfocusout: false 
}) 

onkeyup Boolean  Default: true  
在keyup时验证. As long as the field is not marked as invalid, nothing happens. Otherwise, all rules are checked on each key up event. 
Code 
Disables onkeyup validation. 

$  (".selector").validate  ({ 
   onkeyup: false 
}) 

onclick Boolean  Default: true  
在checkboxes 和 radio 点击时验证. 
Code 
Disables onclick validation of checkboxes and radio buttons. 

$  (".selector").validate  ({ 
   onclick: false 
}) 

focusInvalid Boolean  Default: true  
把焦点聚焦在最后一个动作或者最近的一次出错上via validator.focusInvalid(). The last active element is the one that had focus when the form was submitted, avoiding to steal its focus. If there was no element focused, the first one in the form gets it, unless this option is turned off. 
Code 
Disables focusing of invalid elements. 

$  (".selector").validate  ({ 
   focusInvalid: false 
}) 

focusCleanup Boolean  Default: false  
如果是true那么删除出错类从出错的元素上并且隐藏出错信息当这个元素被聚焦 .避免和 focusInvalid.一起用 
Code 
Enables cleanup when focusing elements, removing the error class and hiding error messages when an element is focused. 

$  (".selector").validate  ({ 
   focusCleanup: true 
}) 

meta String  

为了元数据使用其他插件你要包装 你的验证规则 在他们自己的项目中可以用这个特殊的选项 
Tell the validation plugin to look inside a validate-property in metadata for validation rules. 

$  ("#myform").validate  ({ 
   meta: "validate", 
   submitHandler: function() { alert("Submitted!") } 
}) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
  <script src="http://code.jquery.com/jquery-latest.js"></script> 
  <script> 
  $(document).ready(function(){ 
    $  ("#myform").validate  ({ 
     meta: "validate", 
     submitHandler: function() { alert("Submitted!") } 
    }) 
  }); 
  </script> 
  
</head> 
<body> 
  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/lib/jquery.metadata.js"></script> 
  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script> 
<form id="myform"> 
  <input type="text" name="email" class="{validate:{ required: true, email:true }}" /> 
  <br/> 
  <input type="submit" value="Submit" /> 
</form> 
</body> 
</html> 

errorClass String  Default: "error"  
创建错误类的名字为了去寻找存在的错误标签和增加它到验证失败的元素中去。 
Code 
Sets the error class to "invalid". 

$  (".selector").validate  ({ 
   errorClass: "invalid" 
}) 

errorElement String  Default: "label"  
设置错误的元素，默认的是label你可以改成em.Use this element type to create error messages and to look for existing error messages. The default, "label", has the advantage of creating a meaningful link between error message and invalid field using the for attribute (which is always used, no matter the element type). 
Code 
Sets the error element to "em". 
$  (".selector").validate ({
   errorElement: "em" 
}) 

wrapper String  

在出错信息外用其他的元素包装一层。Wrap error labels with the specified element. Useful in combination with errorLabelContainer to create a list of error messages. 
Code 
Wrap each error element with a list item, useful when using an ordered or unordered list as the error container. 

$  (".selector").validate  ({ 
   wrapper: "li" 
}) 

errorLabelContainer Selector  

把错误信息统一放在一个容器里面。Hide and show this container when validating. 
All error labels are displayed inside an unordered list with the ID "messageBox", as specified by the selector passed as errorContainer option. All error elements are wrapped inside an li element, to create a list of messages. 

$  ("#myform").validate  ({ 
   errorLabelContainer: "#messageBox", 
   wrapper: "li", 
   submitHandler: function() { alert("Submitted!") } 
}) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd "> 
<html> 
<head> 
  <script src="http://code.jquery.com/jquery-latest.js  "></script> 
  
  <script> 
    $(document).ready(function(){ 
      $("#myform").validate  ({ 
        errorLabelContainer: "#messageBox", 
        wrapper: "li", 
        submitHandler: function() { alert("Submitted!") } 
      }) 
    }); 
  </script> 
  
</head> 
<body> 
  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script> 
<ul id="messageBox"></ul> 
<form id="myform" action="/login" method="post"> 
   <label>Firstname</label> 
   <input name="fname" class="required" /> 
   <label>Lastname</label> 
   <input name="lname" title="Your lastname, please!" class="required" /> 
   <br/> 
   <input type="submit" value="Submit"/> 
</form> 
</body> 
</html> 

errorContainer Selector  

显示或者隐藏验证信息 
使用一个额外的容器去显示错误信息 

Uses an additonal container for error messages. The elements given as the errorContainer are all shown and hidden when errors occur. But the error labels themselve are added to the element(s) given as errorLabelContainer, here an unordered list. Therefore the error labels are also wrapped into li elements (wrapper option). 

$  ("#myform").validate  ({ 
   errorContainer: "#messageBox1, #messageBox2", 
   errorLabelContainer: "#messageBox1 ul", 
   wrapper: "li", debug:true, 
   submitHandler: function() { alert("Submitted!") } 
}) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 

  <script src="http://code.jquery.com/jquery-latest.js"></script> 

  
  <script> 
  $(document).ready(function(){ 
    $  ("#myform").validate  ({ 
       errorContainer: "#messageBox1, #messageBox2", 
       errorLabelContainer: "#messageBox1 ul", 
       wrapper: "li", debug:true, 
       submitHandler: function() { alert("Submitted!") } 
    }) 
  }); 
  </script> 
  <style>#messageBox1, #messageBox2 { display: none }</style> 
</head> 
<body> 
  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script> 
<div id="messageBox1"> 
  <ul></ul> 
</div> 
<form id="myform" action="/login" method="post"> 
  <label>Firstname</label> 
  <input name="fname" class="required" /> 
  <label>Lastname</label> 
  <input name="lname" title="Your lastname, please!" class="required" /> 
  <br/> 
  <input type="submit" value="Submit"/> 
</form> 
<div id="messageBox2"> 
  <h3>There are errors in your form, see details above!</h3> 
</div> 
</body> 
</html> 

showErrors Callback  Default: None, uses built-in message disply.  
得到错误的显示句柄 

Gets the map of errors as the first argument and and array of errors as the second, called in the context of the validator object. The arguments contain only those elements currently validated, which can be a single element when doing validation onblur/keyup. You can trigger (in addition to your own messages) the default behaviour by calling this.defaultShowErrors(). 

Code 
Update the number of invalid elements each time an error is displayed. Delegates to the default implementation for the actual error display. 

$  (".selector").validate  ({ 
   showErrors: function(errorMap, errorList) { 
$("#summary").html("Your form contains " + this.numberOfInvalids() + " errors, see details below."); 
this.defaultShowErrors(); 
   } 
}) 

errorPlacement Callback  Default: 把错误label放在验证的元素后面  
可选错误label的放置位置. First argument: The created error label as a jQuery object. Second argument: The invalid element as a jQuery object. 
Use a table layout for the form, placing error messags in the next cell after the input. 

$  ("#myform").validate  ({ 
  errorPlacement: function(error, element) { 
     error.appendTo( element.parent("td").next("td") ); 
   }, 
   debug:true 
}) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 

  <script src="http://code.jquery.com/jquery-latest.js"></script> 

  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script> 
  <script> 
  $(document).ready(function(){ 
    $  ("#myform").validate  ({ 
       errorPlacement: function(error, element) { 
         error.appendTo( element.parent("td").next("td") ); 
       }, 
       debug:true 
     }) 
  }); 
  </script> 
  
</head> 
<body> 
  <form id="myform" action="/login" method="post"> 
<table> 
<tr> 
<td><label>Firstname</label> 
<td><input name="fname" class="required" value="Pete" /></td> 
<td></td> 
</tr> 
<tr> 
<td><label>Lastname</label></td> 
<td><input name="lname" title="Your lastname, please!" class="required" /></td> 
<td></td> 
</tr> 
<tr> 
<td></td><td><input type="submit" value="Submit"/></td><td></td> 
</table> 
</form> 
</body> 
</html> 

success String , Callback  

成功时的class.If specified, the error label is displayed to show a valid element. If a String is given, its added as a class to the label. If a Function is given, its called with the label (as a jQuery object) as its only argument. That can be used to add a text like "ok!". 
添加"valid" 到验证验证元素, 在CSS中定义的样式 

$  ("#myform").validate  ({ 
success: "valid", 
submitHandler: function() { alert("Submitted!") } 
}) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 

  <script src="http://code.jquery.com/jquery-latest.js"></script> 

  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script> 
  <script> 
  $(document).ready(function(){ 
    $  ("#myform").validate  ({ 
   success: "valid", 
   submitHandler: function() { alert("Submitted!") } 
     }) 
  }); 
  </script> 
  <style>label.valid { 
background: url('http://dev.jquery.com/view/trunk/plugins/validate/demo/images/checked.gif') no-repeat; 
height:16px; 
width:16px; 
display: block; 
position: absolute; 
top: 4px; 
left: 152px; 
}</style> 
</head> 
<body> 
  
<form id="myform"> 
  <input type="text" name="email" class="required" /> 
  <br/> 
  <input type="submit" value="Submit" /> 
</form> 
</body> 
</html> 

添加"valid" 到验证验证元素, 在CSS中定义的样式,并加入“ok”的文字 
$  ("#myform").validate  ({ 
   success: function(label) { 
     label.addClass("valid").text("Ok!") 
   }, 
   submitHandler: function() { alert("Submitted!") } 
}) 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 

  <script src="http://code.jquery.com/jquery-latest.js"></script> 

  <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script> 
  <script> 
  $(document).ready(function(){ 
        $  ("#myform").validate  ({ 
   success: function(label) { 
     label.addClass("valid").text("Ok!") 
     }, 
     submitHandler: function() { alert("Submitted!") } 
        }) 
   }); 
  </script> 
  <style>label.valid { 
background: url('http://dev.jquery.com/view/trunk/plugins/validate/demo/images/checked.gif') no-repeat; 
height:16px; 
width:16px; 
display: block; 
position: absolute; 
top: 4px; 
left: 152px; 
padding-left: 18px; 
}</style> 
</head> 
<body> 
  
<form id="myform"> 
  <input type="text" name="email" class="required" /> 
  <br/> 
  <input type="submit" value="Submit" /> 
</form> 
</body> 
</html> 

highlight Callback  Default: Adds errorClass (see the option) to the Element  
高亮显示错误信息。 或者说重写出错时的出错元素的显示。Override to decide which fields and how to highlight.
Code  Highlights an invalid element by fading it out and in again. 

$  (".selector").validate  ({ 
  highlight: function(element, errorClass) { 
     $(element).fadeOut(function() { 
       $(element).fadeIn() 
     }) 
  } 
}) 

Code  Adds the error class to both the invalid element and it's label 

$  (".selector").validate  ({ 
  highlight: function(element, errorClass) { 
     $  (element).addClass(errorClass); 
     $  (element.form).find("label[for=" + element.id + "]").addClass(errorClass); 
  }, 
  unhighlight: function(element, errorClass) { 
     $  (element).removeClass(errorClass); 
     $  (element.form).find("label[for=" + element.id + "]").removeClass(errorClass); 
  } 
});