jquery 表单验证

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例子:

 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 (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 默认的提示 复制代码 代码如下: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: 复制代码 代码如下: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") }); 


<!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><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>jQuery validation plug-in - comment form example</title><link rel="stylesheet" type="text/css" media="screen" href="css/screen.css" /><style type="text/css">        /************jQuery.Validate插件样式开始********************/label.error        {            background: url(images/error.png) no-repeat 0px 0px;            color: Red;            padding-left: 20px;        }label.success{           background:url("images/checked.gif") no-repeat 0px 0px; }        input.error        {            border: dashed 1px red;        }        /************jQuery.Validate插件样式结束********************/</style><script src="jquery.js" type="text/javascript"></script><script src="jquery.metadata.js" type="text/javascript"></script><script src="jquery.validate.js" type="text/javascript"></script><script type="text/javascript">$(document).ready(function() {$("#commentForm").validate({//自定义验证,成功时提示信息success: function(label) {label.text("验证通过!").addClass("success");}   });});</script><style type="text/css">#commentForm { width: 500px; }#commentForm label { width: 250px; }#commentForm label.error, #commentForm input.submit { margin-left: 253px; }</style></head><body><form class="cmxform" id="commentForm" method="post" action=""><fieldset><legend>请输入姓名和邮件地址!</legend><p><label for="cname">姓名 (必填,至少两个字符)</label><input id="cname" name="name" class="required" minlength="2" /></p><p><label for="cemail">邮箱 (必填)</label><input id="cemail" name="email" class="required email" /></p><p><label for="curl">网址 (可选)</label><input id="curl" name="url" class="url" value="" /></p><p><label for="ccomment">留言 (必填)</label><textarea id="ccomment" name="comment" class="required"></textarea></p><p><input class="submit" type="submit" value="Submit"/></p></fieldset></form></body></html>
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