jquery validate验证表单的例子

$(document).ready(function () {
    /* 设置默认属性 */
    $.validator.setDefaults({
        submitHandler: function (form) { form.submit(); }
    });
    // 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]);
    }, "请确保输入的值在3-15个字节之间(一个中文字算2个字节)");

    /* 追加自定义验证方法 */
    // 身份证号码验证   
    jQuery.validator.addMethod("isIdCardNo", function (value, element) {
        return this.optional(element) || isIdCardNo(value);
    }, "请正确输入您的身份证号码");

    // 字符验证   
    jQuery.validator.addMethod("userName", function (value, element) {
        return this.optional(element) || /^[u0391-uFFE5w]+$/.test(value);
    }, "用户名只能包括中文字、英文字母、数字和下划线");

    // 手机号码验证   
    jQuery.validator.addMethod("isMobile", function (value, element) {
        var length = value.length;
        return this.optional(element) || (length == 11 && /^(((13[0-9]{1})|(15[0-9]{1}))+d{8})$/.test(value));
    }, "请正确填写您的手机号码");

    // 电话号码验证   
    jQuery.validator.addMethod("isPhone", function (value, element) {
        var tel = /^(d{3,4}-?)?d{7,9}$/g;
        return this.optional(element) || (tel.test(value));
    }, "请正确填写您的电话号码");

    // 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");
    $(regFrom).validate({
        /* 设置验证规则 */
        rules: {
            userName: {
                required: true,
                userName: true,
                byteRangeLength: [3, 15]
            },
            password: { // www.jb200.com
                required: true,
                minLength: 5
            },
            repassword: {
                required: true,
                minLength: 5,
                equalTo: "#password"
            },
            question: {
                required: true
            },
            answer: {
                required: true
            },
            realName: {
                required: true
            },
            cardNumber: {
                isIdCardNo: true
            },
            mobilePhone: {
                isMobile: true
            },
            phone: {
                isPhone: true
            },
            email: {
                required: true,
                email: true
            },
            zipCode: {
                isZipCode: true
            }
        },
        /* 设置错误信息 */
        messages: {
            userName: {
                required: "请填写用户名",
                byteRangeLength: "用户名必须在3-15个字符之间(一个中文字算2个字符)"
            },
            password: {
                required: "请填写密码",
                minlength: jQuery.format("输入{0}.")
            },
            repassword: {
                required: "请填写确认密码",
                equalTo: "两次密码输入不相同"
            },
            question: {
                required: "请填写您的密码提示问题"
            },
            answer: {
                required: "请填写您的密码提示答案"
            },
            realName: {
                required: "请填写您的真实姓名"
            },
            email: {
                required: "请输入一个Email地址",
                email: "请输入一个有效的Email地址"
            }
        },
        /* 错误信息的显示位置 */
        errorPlacement: function (error, element) {
            error.appendTo(element.parent());
        },
        /* 验证通过时的处理 */
        success: function (label) {
            // set   as text for IE   
            label.html(" ").addClass("checked");
        },
        /* 获得焦点时不验证 */
        focusInvalid: false,
        onkeyup: false
    });

    // 输入框获得焦点时，样式设置   
    $('input').focus(function () {
        if ($(this).is(":text") || $(this).is(":password"))
            $(this).addClass('focus');
        if ($(this).hasClass('have_tooltip')) {
            $(this).parent().parent().removeClass('field_normal').addClass('field_focus');
        }
    });

    // 输入框失去焦点时，样式设置   
    $('input').blur(function () {
        $(this).removeClass('focus');
        if ($(this).hasClass('have_tooltip')) {
            $(this).parent().parent().removeClass('field_focus').addClass('field_normal');
        }
    });
});