jQuery validator表单验证框架使用说明

<script src="../js/jquery.js" type="text/javascript"></script>
<script src="../js/jquery.validate.js" type="text/javascript"></script>
<script src="./js/jquery.metadata.js" type="text/javascript"></script>
$().ready(function() {$("#signupForm").validate();});
<form id="signupForm" method="get" action="">
    <p>
        <label for="firstname">Firstname</label>
        <input id="firstname" name="firstname" class="required" />
    </p>
    <p>
        <label for="email">E-Mail</label>
        <input id="email" name="email" class="required email" />
    </p>
    <p>
        <label for="password">Password</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>
        <input class="submit" type="submit" value="Submit"/>
    </p>
</form>

class="{required:true,minlength:5,messages:{required:'请输入内容'}}"

class="{required:true,minlength:5,equalTo:'#password'}"

$().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>

$().ready(function() {
    $("#signupForm").validate();
});
$().ready(function() {
    $("#signupForm").validate({
        submitHandler:function(form){
            alert("submitted");
            form.submit();
        }
    });
});

$(".selector").validate({
    submitHandler: function(form)
    {
        $(form).ajaxSubmit();
    }
})

$.validator.setDefaults({
    submitHandler: function(form) { alert("submitted!");form.submit(); }
});

$().ready(function() {
    $("#signupForm").validate({
        debug:true
    });
});

$.validator.setDefaults({
    debug: true
})

ignore: ".ignore"

errorPlacement: function(error, element) {
    error.appendTo(element.parent());
}

<tr>
   <td class="label"><label id="lfirstname" for="firstname">First Name</label></td>
   <td class="field"><input id="firstname" name="firstname" type="text" value="" maxlength="100" /></td>
   <td class="status"></td>
</tr>
<tr>
   <td style="padding-right: 5px;">
       <input id="dateformat_eu" name="dateformat" type="radio" value="0" />
       <label id="ldateformat_eu" for="dateformat_eu">14/02/07</label>
   </td>
   <td style="padding-left: 5px;">
       <input id="dateformat_am" name="dateformat" type="radio" value="1"  />
       <label id="ldateformat_am" for="dateformat_am">02/14/07</label>
   </td>
   <td></td>
</tr>
<tr>
   <td class="label"> </td>
   <td class="field" colspan="2">
       <div id="termswrap">
           <input id="terms" type="checkbox" name="terms" />
           <label id="lterms" for="terms">I have read and accept the Terms of Use.</label>
       </div>
   </td>
</tr>

errorPlacement: function(error, element) {
    if ( element.is(":radio") )
        error.appendTo( element.parent().next().next() );
    else if ( element.is(":checkbox") )
        error.appendTo ( element.next() );
    else
        error.appendTo( element.parent().next() );
}

errorClass：String Default: "error"

errorElement：String Default: "label"

errorContainer：Selector

errorContainer: "#messageBox1, #messageBox2" errorLabelContainer：Selector

wrapper：String

errorContainer: "div.error", errorLabelContainer: $("#signupForm div.error"), wrapper: "li"

input.error { border: 1px solid red; }
label.error {
    background:url("./demo/images/unchecked.gif") no-repeat 0px 0px;
    padding-left: 16px;
    padding-bottom: 2px;
    font-weight: bold;
    color: #EA5200;
}
label.checked {
    background:url("./demo/images/checked.gif") no-repeat 0px 0px;
}

errorElement：String Default: "label"

success: function(label) {
    // set   as text for IE
    label.html(" ").addClass("checked");
    //label.addClass("valid").text("Ok!")
}

success: "valid"

onsubmit：Boolean Default: true

onfocusout：Boolean Default: true

onkeyup：Boolean Default: true

onclick：Boolean Default: true

focusInvalid：Boolean Default: true

focusCleanup：Boolean Default: false

// 重置表单
$().ready(function() {
    var validator = $("#signupForm").validate({
        submitHandler:function(form){
            alert("submitted");
            form.submit();
        }
    });
    $("#reset").click(function() {
        validator.resetForm();
    });
});

remote：URL

remote: "check-email.php"
remote: {
    url: "check-email.php", //后台处理程序
    type: "post", //数据发送方式
    dataType: "json", //接受数据格式
    data: { //要传递的数据
        username: function() {
            return $("#username").val();
        }
    }
}

addMethod：name, method, message

// 中文字两个字节
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)"));

// 邮政编码验证
jQuery.validator.addMethod("isZipCode", function(value, element) {
    var tel = /^[0-9]{6}$/;
    return this.optional(element) || (tel.test(value));
}, "请正确填写您的邮政编码");

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

<input type="checkbox" class="checkbox" id="agree" name="agree" class="{required:true}" />

<input type="checkbox" class="checkbox" id="spam_email" value="email" name="spam[]" class="{required:true, minlength:2}" />
<input type="checkbox" class="checkbox" id="spam_phone" value="phone" name="spam[]" />
<input type="checkbox" class="checkbox" id="spam_mail" value="mail" name="spam[]" />

<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 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>