jQuery Validate验证框架详解

jQuery校验官网地址：http://bassistance.de/jquery-plugins/jquery-plugin-validation

一、导入js库

<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>

注：<%=request.getContextPath() %>返回web项目的根路径。

二、默认校验规则

(1)、required:true               必输字段
(2)、remote:"remote-valid.jsp"   使用ajax方法调用remote-valid.jsp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:true             必须输入合法的信用卡号
(10)、equalTo:"#password"        输入值必须和#password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

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：

$.extend($.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: $.validator.format("请输入一个长度最多是 {0} 的字符串"),
    minlength: $.validator.format("请输入一个长度最少是 {0} 的字符串"),
    rangelength: $.validator.format("请输入一个长度介于 {0} 和 {1} 之间的字符串"),
    range: $.validator.format("请输入一个介于 {0} 和 {1} 之间的值"),
    max: $.validator.format("请输入一个最大为 {0} 的值"),
    min: $.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 type="text/javascript" src="<%=path %>/validate/messages_cn.js"></script>

四、使用方式
1、metadata用法，将校验规则写到控件中

<%@ 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验证框架详解-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">用户名：</label>
                <!-- id和name最好同时写上 -->
                <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">登陆密码：</label>
                <input id="password" name="password" type="password"
                    class="{required:true,minlength:5}" />
            </p>
            <p>
                <label for="confirm_password">确认密码：</label>
                <input id="confirm_password" name="confirm_password" type="password"
                    class="{required:true,minlength:5,equalTo:'#password'}" />
            </p>
            <p>
                <label for="confirm_password">性别：</label>
                <!-- 表示必须选中一个 -->
                <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">爱好：</label>
                <!-- checkbox的minlength表示必须选中的最小个数,maxlength表示最大的选中个数,rangelength:[2,3]表示选中个数区间  -->
                <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">厦门</option>
                    <option value="2">泉州</option>
                <option value="3">Oi</option>
            </select>
            </p>
            <p>
                <input class="submit" type="submit" value="立即注册" />
            </p>
        </form>
    </body>
</html>

2、将校验规则写到js代码中

<%@ 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验证框架详解</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, //调试模式取消submit的默认提交功能   
                //errorClass: "label.error", //默认为错误的样式类为：error   
                focusInvalid: false, //当为false时，验证无效时，没有焦点响应  
                onkeyup: false,   
                submitHandler: function(form){   //表单提交句柄,为一回调函数，带一个参数：form   
                    alert("提交表单");   
                    form.submit();   //提交表单   
                },   
                
                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格式不正确"
                    },
                    password:{
                        required: "不能为空",
                        rangelength: $.format("密码最小长度:{0}, 最大长度:{1}。")
                    },
                    confirm_password:{
                        equalTo:"两次密码输入不一致"
                    }                                    
                }
                          
            });    
    
        });
        </script>
    </head>

    <body>
        <form id="myform" method="post" action="">
            <p>
                <label for="myname">用户名：</label>
                <!-- id和name最好同时写上 -->
                <input id="myname" name="myname" />
            </p>
            <p>
                <label for="email">E-Mail：</label>
                <input id="email" name="email" />
            </p>
            <p>
                <label for="password">登陆密码：</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="立即注册" />
            </p>
        </form>
    </body>
</html>

jQuery Validate验证框架详解

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