通过node实现阿里云短信接口，并将手机号缓存，通过Redis过期时间限制频繁发短信

1，首先安装Redis ， npm install redis --save

RedisHelper.js

const redis = require('redis');
function SetString(key,value) {
    let redishost = global.urls.controllers.RedisServer.split(":")[0];
    let redisport = global.urls.controllers.RedisServer.split(":")[1];
    const client = redis.createClient(redisport, redishost, {});
    client.select(2, function() { /* ... */ });
    //错误监听？
    client.on("error", function (err) {
        console.log("Error " + err);
    });
   
    client.set(key, value,redis.print);
    // 三分钟后过期
    client.expire(key, 180);
    client.quit();
}

function GetString(key) {
    return new Promise((resolve, reject) => {
        let redishost = global.urls.controllers.RedisServer.split(":")[0];
        let redisport = global.urls.controllers.RedisServer.split(":")[1];
        const client = redis.createClient(redisport, redishost, {});
        client.select(2, function() { /* ... */ });
        //错误监听？
        client.on("error", function (err) {
            console.log("Error " + err);
        });
        // This will return a JavaScript String
        client.get(key,function(err,reply){
            if (err) throw err;
            console.log('Got: ' + reply);
            resolve(reply)
            client.quit();
        });
    })
}
exports.SetString = SetString;
exports.GetString = GetString;

config.josn

controllers:{"RedisServer":"127.0.0.1:6379"}

//生成随机数和；将配置文件放到全局变量中
let fs = require("fs");
function RangeCode(length) {
//随机产生指定位数验证码
    var range = function (start, end) {
        var array = [];
        for (var i = start; i < end; ++i) array.push(i);
        return array;
    };
    let getnum = function () {
        let num = Math.floor(Math.random() * 10);
        if(num==0){
            return getnum();
        }
        else
            return num;
    }
    var randomstr = range(0, length).map(function (x) {
        return getnum();
    }).join('');
    return randomstr;
}
function UpdateConfig() {
    let configfile = "../config/ServerConfig.json";
    var urls = JSON.parse(fs.readFileSync(configfile));
    global.urls = urls;
    return true;

}
exports.RangeCode = RangeCode;
exports.UpdateConfig = UpdateConfig;

2，发短信

//npm install @alicloud/pop-core -S

const log = require('./logger');
const utiltools = require('./UtilTools');
const redis = require("./RedisHelper");

async function SendSMSCode(ip, phonenum, callback) {
    try {
        // 生成短信码
        let code = utiltools.RangeCode(6);
        // 设置验证码过期时间3min，实例化类
        let codeobj = new smsCode.CMSCode(ip, code, phonenum, 1, new Date((new Date()).getTime() + 3 * 60 * 1000));
        const SMSClient = require('@alicloud/sms-sdk')
        // ACCESS_KEY_ID/ACCESS_KEY_SECRET 根据实际申请的账号信息进行替换
        const accessKeyId = '***'
        const secretAccessKey = '***'
        //初始化sms_client
        var smsClient = new SMSClient({accessKeyId, secretAccessKey})
        let redisTemp =await redis.GetString(phonenum);
        if(redisTemp && new Date().getTime() - redisTemp < 1000){
            log.logger.info("获取Redis缓存手机时间:" + redisTemp);
            let returnobj = {Result: 0, Resultobj: "操作过于频繁！"};
            callback.send(returnobj);
            callback.end();
            return;
        }

        //发送短信
        smsClient.sendSMS({
            PhoneNumbers: phonenum,
            SignName: '钓鱼App',
            TemplateCode: 'SMS_***',
            TemplateParam: '{"code":' + code + '}'
        }).then(function (res) {
            let {Code} = res;
            if (Code === 'OK') {
                //处理返回参数
                log.logger.info("发送成功num:" + phonenum + "code:" + code);
                SetSMSArray(codeobj);
                let returnobj = {Result: 1};
                callback.send(returnobj);
                callback.end();
            }else {
                log.logger.error("发送失败:" + Code);
                let returnobj = {Result: 0, Resultobj: "返回失败",err};
                callback.send(returnobj);
                callback.end();
            }
        }, function (err) {
            log.logger.error(err);
            var returnobj = {Result: 0, Resultobj: "错误",err};
            callback.send(returnobj);
            callback.end();
        })
    } catch (Exception) {
        log.logger.error(Exception);
    }
}

function CompareSmsCode(phonenum, code) {
    var i = global.SMScodearray.length;
    while (i--) {
        if (global.SMScodearray[i].getPhonum() == phonenum) {
            if ((global.SMScodearray[i].getExpireTime() - new Date()) > 0) {
                log.logger.debug("验证未过期:" + global.SMScodearray[i].getExpireTime());
                return code == global.SMScodearray[i].getCode();
            }
            else {
                log.logger.debug("验证码已过期:" + global.SMScodearray[i].getExpireTime());
                return false;
            }

        }
    }
    return false;
}

function SetSMSArray(smsmodel) {
    // 定义全局存手机号和验证码
    var i = global.SMScodearray.length;
    let isexist = false;
    while (i--) {
        if (global.SMScodearray[i].getPhonum() == smsmodel.getPhonum()) {
            global.SMScodearray[i].setTimes(global.SMScodearray[i].getTimes() + 1);
            global.SMScodearray[i].setCode(smsmodel.getCode());
            global.SMScodearray[i].setExpireTime(smsmodel.getExpireTime());
            isexist = true;
        }
    }
    if (!isexist) {
        global.SMScodearray.push(smsmodel);
    }
　　//动态存手机号
    redis.SetString(smsmodel.getPhonum(), new Date().getTime())
}