微信小程序前端开发框架没有自带的验证功能，虽然有表单的数据控制属性，但是略显简陋，且不成体系，尤其是结合后端很别扭，因此小女子开发校友录小程序的表单验证时候一般有两种方法，一是自己裸写验证规则，但是需要比较扎实的正则表达式基础，一种是自己封装Validate插件进行表单验证，基于以上原因，小女子自己封装了前端数据校验规则一套，并且与云开发后端数据校验的写法和规则一致（云开发后端数据校验体系参见上一篇笔记：））

校友录小程序集中校验路由

function check(data, rules, that) {
    let returnData = {};
    for (let k in rules) {
        let arr = rules[k].split('|');
        let desc = '';

        // 校友录小程序数据项说明
        for (let i = 0; i < arr.length; i++) {
            if (arr[i].indexOf('name=') > -1) {
                desc = arr[i].replace('name=', '');
                break;
            }
        }

        // 校验 
        let formName = arr[0];
        let val = data[formName];
        if (val === undefined) val = '';
        if (!Array.isArray(val))
            val = String(val).trim(); // 前后去校友录小程序空格
        returnData[k] = val;

        for (let i = 1; i < arr.length; i++) {
            let result = '';

            let rules = arr[i].split(':');

            // 校友录小程序空不校验
            if (rules[0] != 'required' && val == '') continue;

            switch (rules[0]) {
                case 'required':
                    result = checkRequired(val, desc);
                    break;
                case 'array':
                    result = checkArray(val, desc);
                    break;
                case 'date':
                    result = checkDate(val, desc);
                    break;
                case 'time':
                    result = checkTime(val, desc);
                    break;
                case 'datetime':
                    result = checkDatimeTime(val, desc);
                    break;
                case 'min':
                    result = checkMin(val, Number(rules[1]), desc);
                    break;
                case 'max':
                    result = checkMax(val, Number(rules[1]), desc);
                    break;
                case 'len':
                    result = checkLen(val, Number(rules[1]), desc);
                    break;
                case 'in':
                    result = checkIn(val, rules[1], desc);
                    break;
                case 'email':
                    result = checkEmail(val, desc);
                    break;
                case 'mobile':
                    result = checkMobile(val, desc);
                    break;
                case 'int':
                    result = checkInt(val, desc);
                    break;
                case 'id':
                    result = checkId(val, desc);
                    break;
                case 'letter':
                    result = checkLetter(val, desc);
                    break;
                case 'letter_num':
                    result = checkLetterNum(val, desc);
                    break;
            }

            if (result) {
                wx.showModal({
                    title: '温馨提示',
                    content: result,
                    showCancel: false,
                    success(res) {
                        // 校友录小程序自动聚焦
                        if (that)
                            that.setData({
                                [formName + 'Focus']: true
                            });
                    }
                });
                return false;
            } else {
                if (that) {
                    // 删除校友录小程序原有的自动聚焦
                    if (helper.isDefined(that.data[formName + 'Focus'])) {
                        that.setData({ //TODO delete?
                            [formName + 'Focus']: false
                        });
                    }
                }
            }

        }
    }
    return returnData;
}

校友录小程序分项数据校验

function checkRequired(value, desc) {
    if (value == '')
        return desc + '不能为空';
}

/**
 * 校验校友录小程序字符长度
 * [@param](/user/param) {*} value 
 * [@param](/user/param) {*} min 
 * [@param](/user/param) {*} max 
 */
function isCheckLen(value, min, max) { //TODO 数字怎么处理
    if (!helper.isDefined(value)) return false;
    if (typeof (value) != 'string') return false;
    if (value.length < min || value.length > max) return false;
    return true;
}

/**
 * 校验校友录小程序数字大小
 * [@param](/user/param) {*} value 
 * [@param](/user/param) {*} min 
 * [@param](/user/param) {*} max 
 */
function isCheckM(value, min, max) {
    if (!helper.isDefined(value)) return false;

    if (typeof (value) == 'string' && /^[0-9]+$/.test(value))
        value = Number(value);
    if (typeof (value) != 'number') return false;

    if (value < min || value > max) return false;
    return true;
}

function checkMin(value, len, desc) {
    if (value.length < len)
        return desc + '不能小于' + len + '位';
};

function checkMax(value, len, desc) {
    if (value.length > len)
        return desc + '不能大于' + len + '位';
};

function checkLen(value, len, desc) {
    if (value.length != len)
        return desc + '必须为' + len + '位';
};

function checkMobile(value, desc) {
    if (value == '') return '';
    if (!/(^1[3|5|8][0-9]{9}$)/.test(value))
        return desc + '格式不正确';
}

function checkInt(value, desc) {
    if (value == '') return '';
    if (!/^[0-9]+$/.test(value))
        return desc + '必须为数字';
}

function checkLetter(value, desc) {
    if (value == '') return;
    if (!/^[A-Za-z]+$/.test(value))
        return desc + '必须为字母';
}

function checkLetterNum(value, desc) {
    if (value == '') return;
    if (!/^\w+$/.test(value))
        return desc + '必须为字母，数字和下划线';
}

function checkId(value, desc, min = 1, max = 32) {
    if (value == '') return;
    if (value.length < min || value.length > max) return false;
    if (!/^\w+$/.test(value))
        return desc + '必须为ID格式';
}

function isCheckId(value, min = 1, max = 32) {
    if (!helper.isDefined(value)) return false;
    if (typeof (value) != 'string') return false;
    if (value.length < min || value.length > max) return false;
    if (!/^\w+$/.test(value))
        return false;
    return true;
}

//  校友录小程序邮箱
function checkEmail(value, desc) {
    if (value == '') return;
    let hint = desc + '必须为邮箱格式';
    let reg = /^[A-Za-z0-9+]+[A-Za-z0-9\.\_\-+]*@([A-Za-z0-9\-]+\.)+[A-Za-z0-9]+$/;
    if (!reg.test(value)) return hint;
}

// 校友录小程序短日期，形如 (2008-07-22)
function checkDate(value, desc) {
    if (value == '') return;
    let hint = '请选择' + desc;
    if (value.length != 10) return hint;
    let r = value.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
    if (r == null) return hint;
    let d = new Date(r[1], r[3] - 1, r[4]);
    let chk = d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4];
    if (!chk)
        return hint;
}

// 校友录小程序短时间，形如 (13:04:06)
function checkTime(value, desc) {
    if (value == '') return;
    let hint = desc + '必须为时间格式';
    if (value.length != 8) return hint;

    let a = value.match(/^(\d{1,2})(:)?(\d{1,2})\2(\d{1,2})$/);
    if (a == null) return hint;
    if (a[1] > 24 || a[3] > 60 || a[4] > 60) return hint;
}

// 长时间，形如 (2008-07-22 13:04:06)
function checkDatimeTime(value, desc) {
    if (value == '') return;
    let hint = desc + '必须为完整时间格式';
    if (value.length != 19) return hint;

    var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
    var r = value.match(reg);
    if (r == null) return hint;
    var d = new Date(r[1], r[3] - 1, r[4], r[5], r[6], r[7]);
    let chk = d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4] && d.getHours() == r[5] && d.getMinutes() == r[6] && d.getSeconds() == r[7];
    if (!chk) return hint;
}

function checkArray(value, desc) {
    if (value == '') return;
    if (!Array.isArray(value))
        return desc + '填写错误';
}

function checkIn(value, ref, desc) {
    if (value == '') return;
    let arr = ref.split(',');
    if (!arr.includes(value) && !arr.includes(value + ''))
        return desc + '填写错误';
}

/**
 * 检查校友录小程序枚举类型 
 * [@param](/user/param) {*} value 
 * [@param](/user/param) {*} ref 格式 1,2,3 
 */
function isCheckIn(value, ref) {
    if (!helper.isDefined(value)) return false;
    let arr = ref.split(',');
    if (!arr.includes(value) && !arr.includes(value + '')) return false; //字符，数字都支持
    return true;
}

校友录小程序应用示例

static getFormCheckRules() {
         
        return {
            name: 'formName|required|string|min:2|max:20|name=校友姓名',

            sex: 'formSex|required|int|len:1|in:1,2|name=性别', 
            item: 'formItem|required|string|min:2|max:50|name=班级',
            birth: 'formBirth|required|date|name=生日', 
        
            enroll: 'formEnroll|required|int|len:4|name=入学年份',
            grad: 'formGrad|required|int|len:4|name=毕业年份',
            city: 'formCity|required|string|min:2|max:50|name=所在城市',
        
            native: 'formNative|required|string|min:2|max:50|name=籍贯',
            edu: 'formEdu|required|string|min:2|max:50|name=学历', 
        

            trade: 'formTrade|required|string|min:2|max:50|name=当前行业',
            workStatus: 'formWorkStatus|required|string|min:2|max:50|name=工作状态',
            company: 'formCompany|required|string|min:2|max:50|name=工作单位',
            companyDef: 'formCompanyDef|required|string|min:2|max:50|name=单位性质',
            companyDuty: 'formCompanyDuty|string|min:2|max:50|name=工作职位',

            openSet: 'formOpenSet|required|int|len:1|in:1,8|name=联系方式公开方式',
            mobile: 'formMobile|string|min:2|max:50|name=电话',
            wechat: 'formWechat|string|min:2|max:50|name=微信',
            email: 'formEmail|email|min:2|max:50|name=Email',
            qq: 'formQq|string|min:2|max:50|name=QQ',

            desc: 'formDesc|string|max:500|name=自我介绍',
            resource: 'formResource|string|max:500|name=需求与资源',
        }

    }

}

 代码网址: https://gitee.com/cclinux2/cc-alumni