原博客
jQuery Validate驗證框架詳解
jQuery校驗官網地址：https://jqueryvalidation.org/
一、導入js庫
<script type="text/javascript" src="<%=path %>/validate/jquery-1.6.2.min.js"></script> <script type="text/javascript" src="<%=path %>/validate/jquery.validate.min.js"></script>
二、默認校驗規則
(1)、required:true 必輸字段 (2)、remote:"remote-valid.jsp" 使用ajax方法調用remote-valid.jsp驗證輸入值 (3)、email:true 必須輸入正確格式的電子郵件 (4)、url:true 必須輸入正確格式的網址 (5)、date:true 必須輸入正確格式的日期，日期校驗ie6出錯，慎用 (6)、dateISO:true 必須輸入正確格式的日期(ISO)，例如：2009-06-23，1998/01/22 只驗證格式，不驗證有效性 (7)、number:true 必須輸入合法的數字(負數，小數) (8)、digits:true 必須輸入整數 (9)、creditcard:true 必須輸入合法的信用卡號 (10)、equalTo:"#password" 輸入值必須和#password相同 (11)、accept: 輸入擁有合法后綴名的字符串（上傳文件的后綴） (12)、maxlength:5 輸入長度最多是5的字符串(漢字算一個字符) (13)、minlength:10 輸入長度最小是10的字符串(漢字算一個字符) (14)、rangelength:[5,10] 輸入長度必須介於 5 和 10 之間的字符串")(漢字算一個字符) (15)、range:[5,10] 輸入值必須介於 5 和 10 之間 (16)、max:5 輸入值不能大於5 (17)、min:10 輸入值不能小於10
三、默認的提示
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}.") },
如需要修改，可在js代碼中加入：
$.extend($.validator.messages, { required: "必選字段", remote: "請修正該字段", email: "請輸入正確格式的電子郵件", url: "請輸入合法的網址", date: "請輸入合法的日期", dateISO: "請輸入合法的日期 (ISO).", number: "請輸入合法的數字", digits: "只能輸入整數", creditcard: "請輸入合法的信用卡號", equalTo: "請再次輸入相同的值", accept: "請輸入擁有合法后綴名的字符串", maxlength: $.validator.format("請輸入一個長度最多是 {0} 的字符串"), minlength: $.validator.format("請輸入一個長度最少是 {0} 的字符串"), rangelength: $.validator.format("請輸入一個長度介於 {0} 和 {1} 之間的字符串"), range: $.validator.format("請輸入一個介於 {0} 和 {1} 之間的值"), max: $.validator.format("請輸入一個最大為 {0} 的值"), min: $.validator.format("請輸入一個最小為 {0} 的值") });
推薦做法，將此文件放入一個單獨的js,messages_cn.js中，在頁面中引入
<script type="text/javascript" src="<%=path %>/validate/messages_cn.js"></script>
四、使用方式
1、metadata用法，將校驗規則寫到控件中
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":"
+ request.getServerPort() + path + "/"; %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>jQuery Validate驗證框架詳解-metadata用法</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="<%=request.getContextPath()%>/validate/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/validate/jquery.validate.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/validate/jquery.metadata.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/validate/messages_zh.js"></script>
<script type="text/javascript"> $(function(){ $("#myform").validate(); }); </script>
</head>
<body>
<form id="myform" method="post" action="">
<p>
<label for="myname">用戶名：</label>
<!-- id和name最好同時寫上 -->
<input id="myname" name="myname" class="required" />
</p>
<p>
<label for="email">E-Mail：</label>
<input id="email" name="email" class="required email" />
</p>
<p>
<label for="password">登陸密碼：</label>
<input id="password" name="password" type="password"
class="{required:true,minlength:5}" />
</p>
<p>
<label for="confirm_password">確認密碼：</label>
<input id="confirm_password" name="confirm_password" type="password"
class="{required:true,minlength:5,equalTo:'#password'}" />
</p>
<p>
<label for="confirm_password">性別：</label>
<!-- 表示必須選中一個 -->
<input type="radio" id="gender_male" value="m" name="gender" class="{required:true}" />
<input type="radio" id="gender_female" value="f" name="gender"/>
</p>
<p>
<label for="confirm_password">愛好：</label>
<!-- checkbox的minlength表示必須選中的最小個數,maxlength表示最大的選中個數,rangelength:[2,3]表示選中個數區間 -->
<input type="checkbox" id="spam_email" value="email" name="spam[]" class="{required:true, minlength:2}" />
<input type="checkbox" id="spam_phone" value="phone" name="spam[]" />
<input type="checkbox" id="spam_mail" value="mail" name="spam[]" />
</p>
<p>
<label for="confirm_password">城市：</label>
<select id="jungle" name="jungle" title="Please select something!" class="{required:true}">
<option value=""></option>
<option value="1">廈門</option>
<option value="2">泉州</option>
<option value="3">Oi</option>
</select>
</p>
<p>
<input class="submit" type="submit" value="立即注冊" />
</p>
</form>
</body>
</html>
使用class="{}"的方式，必須引入包：jquery.metadata.js；
可以使用如下的方法，修改提示內容：class="{required:true,minlength:5,messages:{required:'請輸入內容'}}"；
在使用equalTo關鍵字時，后面的內容必須加上引號，如下代碼：class="{required:true,minlength:5,equalTo:'#password'}"。
2、將校驗規則寫到js代碼中
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":"
+ request.getServerPort() + path + "/"; %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>jQuery Validate驗證框架詳解</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="<%=request.getContextPath()%>/validate/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/validate/jquery.validate.min.js"></script>
<script type="text/javascript"> $(function(){ var validate = $("#myform").validate({ debug: true, //調試模式取消submit的默認提交功能 //errorClass: "label.error", //默認為錯誤的樣式類為：error
focusInvalid: false, //當為false時，驗證無效時，沒有焦點響應
onkeyup: false, submitHandler: function(form){ //表單提交句柄,為一回調函數，帶一個參數：form
alert("提交表單"); form.submit(); //提交表單
}, rules:{ myname:{ required:true }, email:{ required:true, email:true }, password:{ required:true, rangelength:[3,10] }, confirm_password:{ equalTo:"#password" } }, messages:{ myname:{ required:"必填" }, email:{ required:"必填", email:"E-Mail格式不正確" }, password:{ required: "不能為空", rangelength: $.format("密碼最小長度:{0}, 最大長度:{1}。") }, confirm_password:{ equalTo:"兩次密碼輸入不一致" } } }); }); </script>
</head>
<body>
<form id="myform" method="post" action="">
<p>
<label for="myname">用戶名：</label>
<!-- id和name最好同時寫上 -->
<input id="myname" name="myname" />
</p>
<p>
<label for="email">E-Mail：</label>
<input id="email" name="email" />
</p>
<p>
<label for="password">登陸密碼：</label>
<input id="password" name="password" type="password" />
</p>
<p>
<label for="confirm_password">確認密碼：</label>
<input id="confirm_password" name="confirm_password" type="password" />
</p>
<p>
<input class="submit" type="submit" value="立即注冊" />
</p>
</form>
</body>
</html>
五、常用方法及注意問題
1、用其他方式替代默認的submit
$(function(){ $("#signupForm").validate({ submitHandler:function(form){ alert("submit!"); form.submit(); } }); });
可以設置validate的默認值，寫法如下：
$.validator.setDefaults({
submitHandler: function(form) { alert("submit!"); form.submit(); }
});
如果想提交表單，需要使用form.submit()，而不要使用$(form).submit()
2、radio和checkbox、select的驗證
1.radio的required表示必須選中一個 <input type="radio" id="gender_male" value="m" name="gender" class="{required:true}" />
<input type="radio" id="gender_female" value="f" name="gender"/>
2.checkbox的required表示必須選中 <input type="checkbox" class="checkbox" id="agree" name="agree" class="{required:true}" /> checkbox的minlength表示必須選中的最小個數,maxlength表示最大的選中個數,rangelength:[2,3]表示選中個數區間 <input type="checkbox" id="spam_email" value="email" name="spam[]" class="{required:true, minlength:2}" />
<input type="checkbox" id="spam_phone" value="phone" name="spam[]" />
<input type="checkbox" id="spam_mail" value="mail" name="spam[]" />
3.select的required表示選中的value不能為空 <select id="jungle" name="jungle" title="Please select something!" class="{required:true}">
<option value=""></option>
<option value="1">Buga</option>
<option value="2">Baga</option>
<option value="3">Oi</option>
</select> select的minlength表示選中的最小個數（可多選的select）,maxlength表示最大的選中個 數,rangelength:[2,3]表示選中個數區間 <select id="fruit" name="fruit" title="Please select at least two fruits" class="{required:true, minlength:2}" multiple="multiple">
<option value="b">Banana</option>
<option value="a">Apple</option>
<option value="p">Peach</option>
<option value="t">Turtle</option>
</select>