jquery validate 详解一
原文:http://blog.sina.com.cn/s/blog_608475eb0100h3h1.html
jQuery校验官网地址:http://bassistance.de/jquery-plugins/jquery-plugin-validation
一导入js库
1 <script src="../js/jquery.js" type="text/javascript"></script> 2 <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),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
三、默认的提示
1 messages: { 2 required: "This field is required.", 3 remote: "Please fix this field.", 4 email: "Please enter a valid email address.", 5 url: "Please enter a valid URL.", 6 date: "Please enter a valid date.", 7 dateISO: "Please enter a valid date (ISO).", 8 dateDE: "Bitte geben Sie ein g眉ltiges Datum ein.", 9 number: "Please enter a valid number.", 10 numberDE: "Bitte geben Sie eine Nummer ein.", 11 digits: "Please enter only digits", 12 creditcard: "Please enter a valid credit card number.", 13 equalTo: "Please enter the same value again.", 14 accept: "Please enter a value with a valid extension.", 15 maxlength: $.validator.format("Please enter no more than {0} characters."), 16 minlength: $.validator.format("Please enter at least {0} characters."), 17 rangelength: $.validator.format("Please enter a value between {0} and {1} characters long."), 18 range: $.validator.format("Please enter a value between {0} and {1}."), 19 max: $.validator.format("Please enter a value less than or equal to {0}."), 20 min: $.validator.format("Please enter a value greater than or equal to {0}.") 21 },
如需要修改,可在js代码中加入:
1 jQuery.extend(jQuery.validator.messages, { 2 required: "必选字段", 3 remote: "请修正该字段", 4 email: "请输入正确格式的电子邮件", 5 url: "请输入合法的网址", 6 date: "请输入合法的日期", 7 dateISO: "请输入合法的日期 (ISO).", 8 number: "请输入合法的数字", 9 digits: "只能输入整数", 10 creditcard: "请输入合法的信用卡号", 11 equalTo: "请再次输入相同的值", 12 accept: "请输入拥有合法后缀名的字符串", 13 maxlength: jQuery.validator.format("请输入一个 长度最多是 {0} 的字符串"), 14 minlength: jQuery.validator.format("请输入一个 长度最少是 {0} 的字符串"), 15 rangelength: jQuery.validator.format("请输入 一个长度介于 {0} 和 {1} 之间的字符串"), 16 range: jQuery.validator.format("请输入一个介于 {0} 和 {1} 之间的值"), 17 max: jQuery.validator.format("请输入一个最大为{0} 的值"), 18 min: jQuery.validator.format("请输入一个最小为{0} 的值") 19 });
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
1 <script src="../js/jquery.js" type="text/javascript"></script> 2 <script src="../js/jquery.validate.js" type="text/javascript"></script> 3 <script src="./js/jquery.metadata.js" type="text/javascript"></script> 4 5 $().ready(function() { 6 $("#signupForm").validate(); 7 }); 8 9 10 <form id="signupForm" method="get" action=""> 11 <p> 12 <label for="firstname">Firstname</label> 13 <input id="firstname" name="firstname" class="required" /> 14 </p> 15 <p> 16 <label for="email">E-Mail</label> 17 <input id="email" name="email" class="required email" /> 18 </p> 19 <p> 20 <label for="password">Password</label> 21 <input id="password" name="password" type="password" class="{required:true,minlength:5}" /> 22 </p> 23 <p> 24 <label for="confirm_password">确认密码</label> 25 <input id="confirm_password" name="confirm_password" type="password" class="{required:true,minlength:5,equalTo:‘#password‘}" /> 26 </p> 27 <p> 28 <input class="submit" type="submit" value="Submit"/> 29 </p> 30 </form>
使用class="{}"的方式,必须引入包:jquery.metadata.js
可以使用如下的方法,修改提示内容: class="{required:true,minlength:5,messages:{required:‘请输入内容‘}}"
在使用equalTo关键字时,后面的内容必须加上引号,如下代码: 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" } } }); }); //messages处,如果某个控件没有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,则需要验证
required:function(){}返回为真,表时需要验证后边两种常用于,表单中需要同时填或不填的元素