官方网站：http://bassistance.de/jquery-plugins/jquery-plugin-validation/
API: http://jquery.bassistance.de/api-browser/plugins.html
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}.")
},
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>
使用案例如下：
<form id="formLogin" method="post">
<div>
<label for="username">Username:</label>
<input type="text" id="username" name="username" />
</div>
<div>
<label for="password">password:</label>
<input type="text" id="password" name="password" />
</div>
<div>
<label for="password1">password1:</label>
<input type="text" id="password1" name="password1" />
</div>
<div>
<label for="sex">sex:</label>
<select id="sex" name="sex">
<option id="sexopt" value="" selected="selected">请选择</option>
<option id="sexnan" value="1">男</option>
<option id="sexnv" value="2">女</option>
</select>
</div>
<div>
<label for="favorite">level:</label>
<input type="checkbox" id="sport" name="favorite" value="sport" />sport
<input type="checkbox" id="write" name="favorite" value="write" />write
</div>
<div>
<label for="level">level:</label>
<input type="radio" id="one" name="level" value="one" />1
<input type="radio" id="two" name="level" value="two" />2
</div>
<div>
<input id="submit" type="button" value="submit" />
</div>
</form>
<script type="text/javascript">
$().ready(function () {
$("#formLogin").validate({
rules: {
username: {
required: true
},
password: {
required: true
},
sex: {
required: true
},
level: {
required: true
},
favorite: {
required: true
}
},
messages: {
username: {
required: "please input username"
},
password: {
required: "please input password"
},
sex: {
required: "please select sex"
},
level: {
required: "level requred"
},
favorite: {
required: "favorite required"
}
},
// 单选、多选的错误提示
errorPlacement: function (error, element) { //指定错误信息位置
if (element.is(':radio') || element.is(':checkbox')) { //如果是radio或checkbox
var eid = element.attr('name'); //获取元素的name属性
error.appendTo(element.parent()); //将错误信息添加当前元素的父结点后面
} else {
error.insertAfter(element);
}
}
});
});
$("#submit").click(function () {
$("#submit").submit();
});
</script>
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