微信订阅后台自动回复功能的实现

3.1. 订阅号后台自动回复功能的实现

3.1.1. 官网文档地址

3.1.2. 订阅号管理平台的配置

  • 由于微信只支持80端口,因此经过ittun.com搭建模拟80端口的服务器html

    • ittun官网网址:http://www.ittun.com/
    • 下载客户端文件并解压缩node

    • 修改startup.bat文件的内容以下 git

    • 双击启动startup.bat文件 github

  • 来到订阅号后台并进入开发-基本配置页面进行配置 web

3.1.3. node后端接入

3.1.3.1. 原生代码实现

// 使用原生模块的写法
const express = require("express");
const {parseString} = require("xml2js");
const app = express();

// 接收微信服务器发过来的消息
app.post("/wx", (req, res, next) => {
    // 微信订阅号传过来的数据都是xml格式
    req.on("data", (buffer)=> {
        let msg = buffer.toString();
        //console.log(buffer.toString());
        //<xml><ToUserName><![CDATA[gh_fdfc0bf0bb5a]]></ToUserName>
        //<FromUserName><![CDATA[oryIWwNJ0Sgn8LyyxHsD6OLGxR9g]]></FromUserName>
        //<CreateTime>1479613848</CreateTime>
        //<MsgType><![CDATA[text]]></MsgType>
        //<Content><![CDATA[大好河山]]></Content>
        //<MsgId>6354893088312947331</MsgId>
        //</xml>


        //解析xml
        parseString(msg, (err, result) => {
            //console.log(result);

            //console.log(result.xml.Content[0]);
            //{ xml:
            //{ ToUserName: [ 'gh_fdfc0bf0bb5a' ],
            //    FromUserName: [ 'oryIWwAKciQIskVv3TCcI6LsY8kY' ],
            //    CreateTime: [ '1479613991' ],
            //    MsgType: [ 'text' ],
            //    Content: [ '你那了' ],
            //    MsgId: [ '6354893702493270691' ] } }


            let touser = result.xml.FromUserName[0];
            let fromuser = result.xml.ToUserName[0];
            //若是收到的是文本消息
            if (result.xml.MsgType[0] === "text") {
                if (result.xml.Content[0] === "你好") {
                    let txt = "你也好";

                    let sendmsg = `
                                    <xml>
                                        <ToUserName><![CDATA[${touser}]]></ToUserName>
                                        <FromUserName><![CDATA[${fromuser}]]></FromUserName>
                                        <CreateTime>${Date.now()}</CreateTime>
                                        <MsgType><![CDATA[text]]></MsgType>
                                        <Content><![CDATA[${txt}]]></Content>
                                    </xml>
                                `;
                    res.send(sendmsg);
                } else if (result.xml.Content[0] === "吃了么") {
                    let txt = "没吃呢,走一块儿食堂";

                    let sendmsg = `
                                    <xml>
                                        <ToUserName><![CDATA[${touser}]]></ToUserName>
                                        <FromUserName><![CDATA[${fromuser}]]></FromUserName>
                                        <CreateTime>${Date.now()}</CreateTime>
                                        <MsgType><![CDATA[text]]></MsgType>
                                        <Content><![CDATA[${txt}]]></Content>
                                    </xml>
                                  `;
                    res.send(sendmsg);
                } else if (result.xml.Content[0] === "看牙") {
                    //发送图文消息

                    let sendmsg = `
                                    <xml>
                                        <ToUserName><![CDATA[${touser}]]></ToUserName>
                                        <FromUserName><![CDATA[${fromuser}]]></FromUserName>
                                        <CreateTime>${Date.now()}</CreateTime>
                                        <MsgType><![CDATA[news]]></MsgType>
                                        <ArticleCount>1</ArticleCount>
                                        <Articles>
                                        <item>
                                        <Title><![CDATA[预定看牙]]></Title>
                                        <Description><![CDATA[咱们一块儿看牙去吧]]></Description>
                                        <PicUrl><![CDATA[http://wx001.ittun.com/img/logo.png]]></PicUrl>
                                        <Url><![CDATA[http://wx001.ittun.com/order.html]]></Url>
                                        </item>
                                        </Articles>
                                    </xml>
                                   `;

                    res.send(sendmsg);
                } else {
                    // 不符合条件的回复
                    let txt = "滚蛋";

                    let sendmsg = `
                                    <xml>
                                        <ToUserName><![CDATA[${touser}]]></ToUserName>
                                        <FromUserName><![CDATA[${fromuser}]]></FromUserName>
                                        <CreateTime>${Date.now()}</CreateTime>
                                        <MsgType><![CDATA[text]]></MsgType>
                                        <Content><![CDATA[${txt}]]></Content>
                                    </xml>
                                   `;
                    res.send(sendmsg);
                }

            }
            else if (result.xml.MsgType[0] === "event") {
                //是点击事件click
                if (result.xml.Event[0] === "CLICK") {
                    if (result.xml.EventKey[0] === "V1001_TODAY_MUSIC") {
                        let txt = "收到今日歌曲";

                        let sendmsg = `
                                        <xml>
                                            <ToUserName><![CDATA[${touser}]]></ToUserName>
                                            <FromUserName><![CDATA[${fromuser}]]></FromUserName>
                                            <CreateTime>${Date.now()}</CreateTime>
                                            <MsgType><![CDATA[text]]></MsgType>
                                            <Content><![CDATA[${txt}]]></Content>
                                        </xml>
                                       `
                        res.send(sendmsg);
                    }
                }
            }

        });
    });
})

// 启动server
const server = app.listen(3002, function () {
    const host = server.address().address;
    const port = server.address().port;
    console.log('Example app listening at http://%s:%s', host, port);
});

3.1.3.2. wechat模块的实现

// 使用wechat模块的写法
const wechat = require('wechat');
const express = require("express");

const app = express();
const config = {
    token: 'dingyuehaohoutai',
    appid: 'wx263a41ae72347',
    encodingAESKey: 'T5766o1ql3lXrPIN0C4Tv1Udf3CkHhzFG'
};

app.use('/wx', wechat(config, function (req, res, next) {
    // 微信输入信息都在req.weixin上
    const message = req.weixin;
    console.log(message.Content);
   // {
   //      ToUserName: 'gh_dbd933de052c',
   //      FromUserName: 'oB3MDvytZho2Xs6ed-U5-QEeDJ3o',
   //      CreateTime: '1479632080',
   //      MsgType: 'text',
   //      Content: 'hehe',
   //      MsgId: '6354971394159447836'
   //  }


    if (message.Content === 'diaosi') {
        // 回复屌丝(普通回复)
        res.reply('hehe');
    } else if (message.Content === 'text') {
        //你也能够这样回复text类型的信息
        res.reply({
            content: 'text object',
            type: 'text'
        });
    } else if (message.Content === 'hehe') {
        // 回复一段音乐
        res.reply({
            type: "music",
            content: {
                title: "来段音乐吧",
                description: "一无全部",
                musicUrl: "http://m5.file.xiami.com/884/884/1706253944/1773374767_15591128_l.mp3?auth_key=d26a837c4b087ee74ec512b8206d9dc1-1479870000-0-null",
                hqMusicUrl: "http://m5.file.xiami.com/884/884/1706253944/1773374767_15591128_l.mp3?auth_key=d26a837c4b087ee74ec512b8206d9dc1-1479870000-0-null"

            }
        });
    } else {
        // 回复高富帅(图文回复)
        res.reply([
            {
                title: '你来我家接我吧',
                description: '这是女神与高富帅之间的对话',
                picurl: 'http://nodeapi.cloudfoundry.com/qrcode.jpg',
                url: 'http://nodeapi.cloudfoundry.com/'
            }
        ]);
    }
}));

// 启动server
const server = app.listen(3002, function () {
    const host = server.address().address;
    const port = server.address().port;
    console.log('Example app listening at http://%s:%s', host, port);
});

3.1.3.3. 其余第三方模块的实现

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