jquery validate 详细说明

jQuery校验

官网地址：http://bassistance.de/jquery-plugins/jquery-plugin-validation

一导入js库

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

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

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)。比如：2009-06-23，1998/01/22 仅仅验证格式。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同样

(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}.")

},

如须要改动。可在js代码中增加：

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: "仅仅能输入整数",

creditcard: "请输入合法的信用卡号",

equalTo: "请再次输入同样的值",

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>

<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>

使用class="{}"的方式。必须引入包：jquery.metadata.js

能够使用例如以下的方法，改动提示内容：

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

在使用equalTokeyword时。后面的内容必须加上引號，例如以下代码：

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password",

minlength: jQuery.format("password不能小于{0}个字 符")

},

confirm_password: {

required: "请输入确认password",

minlength: "确认password不能小于5个字符",

equalTo: "两次输入password不一致不一致"

}

}

});

});

//messages处，假设某个控件没有message，将调用默认的信息

<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">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>

required:true 必须有值

required:"#aa:checked"表达式的值为真。则须要验证

required:function(){}返回为真，表时须要验证

后面的两个种通常所用，表单同时需要填写或不填元素