jquery.validate表单验证插件使用方法解析

<input id="complex" value="hi" class="{required:true,minlength:3, maxlength:5,
messages:{required:'为什么不输入一点文字呢',minlength:'输入的太少了',maxlength:'输入那么多干嘛'}}" />

$().ready(function() {
 $("#form2").validate({
 rules: {
  password: {
  required: true,
  minlength: 5
  },
  confirm_password: {
  required: true,
  minlength: 5,
  equalTo: "#password"
  }
 },
 messages: {
  password: {
  required: "没有填写密码",
  minlength: jQuery.format("密码不能小于{0}个字符")
  },
  confirm_password: {
  required: "没有确认密码",
  minlength: "确认密码不能小于{0}个字符",
  equalTo: "两次输入密码不一致嘛"
  }
 }
 });
});

$("#form2").validate({
 rules: {
 funcvalidate: {
 required: function() {return $("#password").val()!=""; }
 }
 },
 messages: {
 funcvalidate: {
 required: "有密码的情况下必填"
 }
 }
});

email<input class="{validate:{required:true, email:true, 
messages:{required:'输入email地址', email:'你输入的不是有效的邮件地址'}}}"/>

$().ready(function() {
 $.metadata.setType("attr", "validate");
 $("#form1").validate();
});

// 字符验证 
jQuery.validator.addMethod("userName", function(value, element) {
 return this.optional(element) || /^[\u0391-\uFFE5\w]+$/.test(value);
}, "用户名只能包括中文字、英文字母、数字和下划线"); 

//然后就可以使用这个规则了
$("#form1").validate({
 // 验证规则
 rules: {
 userName: {
  required: true,
  userName: true,
  rangelength: [5,10]
 }
 },
 /* 设置错误信息 */
 messages: {
 userName: {
  required: "请填写用户名",
  rangelength: "用户名必须在5-10个字符之间" 
 }  
 },
}); 

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

<span>
 选项1<input type="checkbox" id="check_1" value="1" name="checkGroup" 
 class="{required:true,minlength:2, messages:{required:'必须选择',minlength:'至少选择2项'}}" /><br />
 选项2<input type="checkbox" id="check_2" value="2" name="checkGroup" /><br />
 选项3<input type="checkbox" id="check_3" value="3" name="checkGroup" /><br />
</span>

<span>
 <select id="selectbox" name="selectbox" class="{required:true}">
 <option value=""></option>
 <option value="1">1</option>
 <option value="2">2</option>
 <option value="3">3</option>
 </select>
</span>

remote: {
url: "url", //url地址
type: "post",  //发送方式
dataType: "json", //数据格式 data: {   //要传递的数据
 username: function() {
 return $("#username").val();
 }}
}

<script type="text/javascript"></script>
// 手机号码验证
jQuery.validator.addMethod("mobile", function(value, element) {
 var length = value.length;
 var mobile = /^(((13[0-9]{1})|(15[0-9]{1}))+\d{8})$/
 return this.optional(element) || (length == 11 && mobile.test(value));
}, "手机号码格式错误"); 

// 电话号码验证 
jQuery.validator.addMethod("phone", function(value, element) {
 var tel = /^(0[0-9]{2,3}\-)?([2-9][0-9]{6,7})+(\-[0-9]{1,4})?$/;
 return this.optional(element) || (tel.test(value));
}, "电话号码格式错误");

// 邮政编码验证 
jQuery.validator.addMethod("zipCode", function(value, element) {
 var tel = /^[0-9]{6}$/;
 return this.optional(element) || (tel.test(value));
}, "邮政编码格式错误");

// QQ号码验证 
jQuery.validator.addMethod("qq", function(value, element) {
 var tel = /^[1-9]\d{4,9}$/;
 return this.optional(element) || (tel.test(value));
}, "qq号码格式错误");

// IP地址验证
jQuery.validator.addMethod("ip", function(value, element) {
 var ip = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
 return this.optional(element) || (ip.test(value) && (RegExp.$1 < 256 && RegExp.$2 < 256 && RegExp.$3 < 256 && RegExp.$4 < 256));
}, "Ip地址格式错误");

// 字母和数字的验证
jQuery.validator.addMethod("chrnum", function(value, element) {
 var chrnum = /^([a-zA-Z0-9]+)$/;
 return this.optional(element) || (chrnum.test(value));
}, "只能输入数字和字母(字符A-Z, a-z, 0-9)");

// 中文的验证
jQuery.validator.addMethod("chinese", function(value, element) {
 var chinese = /^[\u4e00-\u9fa5]+$/;
 return this.optional(element) || (chinese.test(value));
}, "只能输入中文");

// 下拉框验证
$.validator.addMethod("selectNone", function(value, element) {
 return value == "请选择";
}, "必须选择一项");

// 字节长度验证
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)"));