jQuery Validate 插件

jQuery Validate

导入 js 库

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

默认校验规则

默认提示

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 gültiges 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}.")
},

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")
});

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

使用方式

1、将校验规则写到控件中

<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">确认密码</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>

class="{required:true,minlength:5,messages:{required:'请输入内容'}}"

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"
}
}
});
});

<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">确认密码</label>
<input id="confirm_password" name="confirm_password" type="password" />
</p>
<p>
<input class="submit" type="submit" value="Submit"/>
</p>
</form>

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();
}
});
});

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

$.validator.setDefaults({
submitHandler: function(form) { alert("submitted!");form.submit(); }
});

2、debug，只验证不提交表单

$().ready(function() {
$("#signupForm").validate({
debug:true
});
});

$.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

errorPlacement: function(error, element) {
error.appendTo(element.parent());
}

<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() );
}

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

5、更改错误信息显示的样式

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

success: function(label) {
// set   as text for IE
label.html(" ").addClass("checked");
//label.addClass("valid").text("Ok!")
}

success: "valid"

7、验证的触发方式修改

// 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

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();
}
}
}

9、添加自定义校验

addMethod：name, method, message

// 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");

10、radio 和 checkbox、select 的验证

<input  type="radio" id="gender_male" value="m" name="gender" class="{required:true}" />
<input  type="radio" id="gender_female" value="f" name="gender"/>

<input type="checkbox" class="checkbox" id="agree" name="agree" class="{required:true}" />

<input type="checkbox" class="checkbox" id="spam_email" value="email" name="spam[]" class="{required:true, minlength:2}" />
<input type="checkbox" class="checkbox" id="spam_phone" value="phone" name="spam[]" />
<input type="checkbox" class="checkbox" id="spam_mail" value="mail" name="spam[]" />

<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 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

Validator

内置验证方式

validate ()的可选项

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

$.validator.setDefaults({
debug:true
})

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

$("#myform").validate({
ignore:".ignore"
})

$(".selector").validate({
rules:{
name:"required",
email:{
required:true,
email:true
}
}
})

$(".selector").validate({
rules:{
name:"required",
email:{
required:true,
email:true
}
},
messages:{
name:"Name不能为空",
email:{
required:"E-mail不能为空",
email:"E-mail地址不正确"
}
}
})

$("#myform").validate({
groups:{
username:"fname
lname"
},
errorPlacement:function(error,element) {
if (element.attr("name") == "fname" || element.attr("name") == "lname")
error.insertAfter("#lastname");
else
error.insertAfter(element);
},
debug:true
})

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

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

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

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

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

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

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

$(".selector").validate
errorElement:"em"
})

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

$("#myform").validate({
errorLabelContainer:"#messageBox",
wrapper:"li",
submitHandler:function() {
alert("Submitted!")
}
})

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

$("#myform").validate({
errorPlacement:function(error,element) {
error.appendTo(element.parent("td").next("td"));
},
debug:true
})

$("#myform").validate({
success:"valid",
submitHandler:function() {
alert("Submitted!")
}
})

addMethod(name,method,message)方法

$.validator.addMethod("af",function(value,element,params){
if(value.length>1){
return false;
}
if(value>=params[0] && value<=params[1]){
return true;
}else{
return false;
}
},"必须是一个字母,且a-f");

username:{
af:["a","f"]
}

meta String 方式

$("#myform").validate({

meta:"validate",

submitHandler:function() {
alert("Submitted!") }

})

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

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

<form id="myform">

<input type="text"
name="email" class="{validate:{ required:true,email:true }}" />

<input type="submit"
value="Submit" />

</form>

实例演示

虚构的实例

现实世界的实例