TNW 简介
TNW: TypeScript(The) + Node.js(Next) + WeChat 微信公众号开发脚手架，支持任何 Node.js 的服务端框架
测试号申请
开启开发者模式
这里说的各种消息交互是指的 开发者模式下的消息交互 如果还没有开启开发者模式可以参考之前写文章 开启公众号开发者模式
在 TNW 中实现微信公众号各种消息交互非常简单，步骤如下：
- 接收各种消息
- 调用
WeChat.handleMsg(...)方法处理分发消息 - 实现
MsgAdapter接口，实现业务逻辑以及各种消息回复
接收各种消息
开发者 URL 的 POST 方法下接收各种消息 具体实现代码如下
Express 示例如下:
// 接收微信消息入口
app.post('/msg', function (req: any, res: any) {
console.log('post...', req.query);
// 支持多公众号
let appId: string = req.query.appId;
if (appId) {
ApiConfigKit.setCurrentAppId(appId);
}
// 获取签名相关的参数用于消息解密(测试号以及明文模式无此参数)
let msgSignature = req.query.msg_signature,
timestamp = req.query.timestamp,
nonce = req.query.nonce;
//监听 data 事件 用于接收数据
let buffer: Uint8Array[] = [];
req.on('data', function (data: any) {
buffer.push(data);
});
req.on('end', function () {
let msgXml = Buffer.concat(buffer).toString('utf-8');
// 处理消息并响应对应的回复
// ....
});
});
Nest 示例如下:
@Post("/msg")
PostMsg(@Req() req: Request, @Res() res: Response) {
let that = this;
console.log('post...', req.query);
// 支持多公众号
let appId: string = req.query.appId;
if (appId) {
ApiConfigKit.setCurrentAppId(appId);
}
// 获取签名相关的参数用于消息解密(测试号以及明文模式无此参数)
let msgSignature = req.query.msg_signature,
timestamp = req.query.timestamp,
nonce = req.query.nonce;
//监听 data 事件 用于接收数据
let buffer: Uint8Array[] = [];
req.on('data', function (data: any) {
buffer.push(data);
});
req.on('end', function () {
let msgXml = Buffer.concat(buffer).toString('utf-8');
// 处理消息并响应对应的回复
// ...
});
}
处理并分发消息
WeChat.handleMsg(msgAdapter: MsgAdapter, msgXml: string, msgSignature?: string, timestamp?: string, nonce?: string)
handleMsg 中包含了消息的解密、各种消息分发、消息加密、各种消息回复。这里就不贴源码了，感兴趣的可以看看源码，源码也有详细的注释。
其中 msgXml 、msgSignature、timestamp 、nonce 已在上面的 接收各种消息中 获得，就差 MsgAdapter 了。
MsgAdapter 介绍
MsgAdapter 接口中定义的方法如下：
export interface MsgAdapter {
// 处理文本消息
processInTextMsg(inTextMsg: InTextMsg): OutMsg;
// 处理图片消息
processInImageMsg(inImageMsg: InImageMsg): OutMsg;
// 处理声音消息
processInVoiceMsg(inVoiceMsg: InVoiceMsg): OutMsg;
// 处理视频消息
processInVideoMsg(inVideoMsg: InVideoMsg): OutMsg;
// 处理小视频消息
processInShortVideoMsg(inShortVideoMsg: InShortVideoMsg): OutMsg;
// 处理地理位置消息
processInLocationMsg(inLocationMsg: InLocationMsg): OutMsg;
// 处理链接消息
processInLinkMsg(inLinkMsg: InLinkMsg): OutMsg;
// 处理语音识别结果
processInSpeechRecognitionResults(inSpeechRecognitionResults: InSpeechRecognitionResults): OutMsg;
// 处理未定义的消息(其他消息...小哥该扩展了)
processIsNotDefinedMsg(inNotDefinedMsg: InNotDefinedMsg): OutMsg;
// 处理关注、取消关注事件
processInFollowEvent(inFollowEvent: InFollowEvent): OutMsg;
// 处理扫码事件
processInQrCodeEvent(inQrCodeEvent: InQrCodeEvent): OutMsg;
// 处理地理位置事件
processInLocationEvent(inLocationEvent: InLocationEvent): OutMsg;
// 处理地理位置事件
processInMenuEvent(inMenuEvent: InMenuEvent): OutMsg;
// 处理模板消息事件
processInTemplateMsgEvent(inTemplateMsgEvent: InTemplateMsgEvent): OutMsg;
// 处理摇一摇周边事件
processInShakearoundUserShakeEvent(inShakearoundUserShakeEvent: InShakearoundUserShakeEvent): OutMsg;
}
InXxxxMsg 统一继承自 InMsg ，InXxxxEvent 统一继承自 EventInMsg 而 EventInMsg 又继承自 InMsg ，所以在任何的 inXxxxx 中都很容易获取到 toUserName(开发者微信号即appId)、 fromUserName(发送方帐号openId) 。 TNW 支持多公众，后面会使用到此 appId 来实现不同公众号回复不同的消息
响应对应的回复
代码实现比较简单就不过多介绍了，请看源码
提醒：回复消息时可以对不同的公众号做特殊的处理
export class MsgController implements MsgAdapter {
processInTextMsg(inTextMsg: InTextMsg): OutMsg {
let outMsg: any;
let content: string = "IJPay 让支付触手可及 \n\nhttps://gitee.com/javen205/IJPay";
if ("极速开发微信公众号" == inTextMsg.getContent) {
// 多公众号支持 分别给不同的公众号发送不同的消息
if (ApiConfigKit.getApiConfig.getAppId == 'wx614c453e0d1dcd12') {
content = "极速开发微信公众号 \n\nhttps://github.com/javen205/weixin_guide"
outMsg = new OutTextMsg(inTextMsg);
outMsg.setContent(content);
} else {
content = "极速开发微信公众号 \n\nhttps://github.com/javen205/TNW"
outMsg = new OutTextMsg(inTextMsg);
outMsg.setContent(content);
}
} else if ("聚合支付" == inTextMsg.getContent) {
// 最新规则：开发者只能回复1条图文消息；其余场景最多可回复8条图文消息
outMsg = new OutNewsMsg(inTextMsg);
outMsg.addArticle("聚合支付了解下", "IJPay 让支付触手可及",
"https://gitee.com/javen205/IJPay/raw/master/assets/img/IJPay-t.png", "https://gitee.com/javen205/IJPay")
outMsg.addArticle("jfinal-weixin", "极速开发微信公众号",
"https://gitee.com/javen205/IJPay/raw/master/assets/img/IJPay-t.png", "https://gitee.com/JFinal/jfinal-weixin")
} else {
// outMsg = new OutTextMsg(inTextMsg);
// outMsg.setContent(content);
// 转发给多客服PC客户端
outMsg = new OutCustomMsg(inTextMsg);
console.log("转发给多客服PC客户端");
}
return outMsg;
}
processInImageMsg(inImageMsg: InImageMsg): OutMsg {
let outMsg = new OutImageMsg(inImageMsg);
outMsg.setMediaId = inImageMsg.getMediaId;
return outMsg;
}
processInVoiceMsg(inVoiceMsg: InVoiceMsg): OutMsg {
let outMsg = new OutVoiceMsg(inVoiceMsg);
outMsg.setMediaId = inVoiceMsg.getMediaId;
return outMsg;
}
processInVideoMsg(inVideoMsg: InVideoMsg): OutMsg {
let outMsg = new OutVideoMsg(inVideoMsg);
outMsg.setMediaId = inVideoMsg.getMediaId;
outMsg.setDescription = "IJPay 让支付触手可及";
outMsg.setTitle = "视频消息";
return outMsg;
}
processInShortVideoMsg(inShortVideoMsg: InShortVideoMsg): OutMsg {
let outMsg = new OutVideoMsg(inShortVideoMsg);
outMsg.setMediaId = inShortVideoMsg.getMediaId;
outMsg.setDescription = "TypeScript + Node.js 开发微信公众号";
outMsg.setTitle = "短视频消息";
return outMsg;
}
processInLocationMsg(inLocationMsg: InLocationMsg): OutMsg {
return this.renderOutTextMsg(inLocationMsg,
"位置消息... \n\nX:" + inLocationMsg.getLocation_X + " Y:" + inLocationMsg.getLocation_Y + "\n\n" + inLocationMsg.getLabel);
}
processInLinkMsg(inLinkMsg: InLinkMsg): OutMsg {
let text = new OutTextMsg(inLinkMsg);
text.setContent("链接频消息..." + inLinkMsg.getUrl);
return text;
}
processInSpeechRecognitionResults(inSpeechRecognitionResults: InSpeechRecognitionResults): OutMsg {
let text = new OutTextMsg(inSpeechRecognitionResults);
text.setContent("语音识别消息..." + inSpeechRecognitionResults.getRecognition);
return text;
}
processInFollowEvent(inFollowEvent: InFollowEvent): OutMsg {
if (InFollowEvent.EVENT_INFOLLOW_SUBSCRIBE == inFollowEvent.getEvent) {
return this.renderOutTextMsg(inFollowEvent,
"感谢你的关注 么么哒 \n\n交流群：114196246");
}
else if (InFollowEvent.EVENT_INFOLLOW_UNSUBSCRIBE == inFollowEvent.getEvent) {
console.error("取消关注：" + inFollowEvent.getFromUserName);
return this.renderOutTextMsg(inFollowEvent);
} else {
return this.renderOutTextMsg(inFollowEvent);
}
}
processInQrCodeEvent(inQrCodeEvent: InQrCodeEvent): OutMsg {
if (InQrCodeEvent.EVENT_INQRCODE_SUBSCRIBE == inQrCodeEvent.getEvent) {
console.debug("扫码未关注：" + inQrCodeEvent.getFromUserName);
return this.renderOutTextMsg(inQrCodeEvent,
"感谢您的关注，二维码内容：" + inQrCodeEvent.getEventKey);
}
else if (InQrCodeEvent.EVENT_INQRCODE_SCAN == inQrCodeEvent.getEvent) {
console.debug("扫码已关注：" + inQrCodeEvent.getFromUserName);
return this.renderOutTextMsg(inQrCodeEvent);
} else {
return this.renderOutTextMsg(inQrCodeEvent);
}
}
processInLocationEvent(inLocationEvent: InLocationEvent): OutMsg {
console.debug("发送地理位置事件：" + inLocationEvent.getFromUserName);
return this.renderOutTextMsg(inLocationEvent,
"地理位置是：" + inLocationEvent.getLatitude);
}
processInMenuEvent(inMenuEvent: InMenuEvent): OutMsg {
console.debug("菜单事件：" + inMenuEvent.getFromUserName);
return this.renderOutTextMsg(inMenuEvent,
"菜单事件内容是：" + inMenuEvent.getEventKey);
}
processInTemplateMsgEvent(inTemplateMsgEvent: InTemplateMsgEvent): OutMsg {
console.debug("模板消息事件：" + inTemplateMsgEvent.getFromUserName + " " + inTemplateMsgEvent.getStatus);
return this.renderOutTextMsg(inTemplateMsgEvent,
"消息发送状态：" + inTemplateMsgEvent.getStatus);
}
processInShakearoundUserShakeEvent(inShakearoundUserShakeEvent: InShakearoundUserShakeEvent): OutMsg {
console.debug("摇一摇事件：" + inShakearoundUserShakeEvent.getFromUserName + " " + inShakearoundUserShakeEvent.getUuid);
return this.renderOutTextMsg(inShakearoundUserShakeEvent,
"uuid：" + inShakearoundUserShakeEvent.getUuid);
}
processIsNotDefinedMsg(inNotDefinedMsg: InNotDefinedMsg): OutMsg {
return this.renderOutTextMsg(inNotDefinedMsg,
"未知消息");
}
renderOutTextMsg(inMsg: InMsg, content?: string): OutTextMsg {
let outMsg = new OutTextMsg(inMsg);
outMsg.setContent(content ? content : " ");
return outMsg;
}
}
开源推荐
-
TNW微信公众号开发脚手架：https://gitee.com/javen205/TNW -
IJPay让支付触手可及：https://gitee.com/javen205/IJPay - SpringBoot 微服务高效开发
mica工具集：https://gitee.com/596392912/mica -
Avue一款基于 vue 可配置化的神奇框架：https://gitee.com/smallweigit/avue -
pig宇宙最强微服务（架构师必备）：https://gitee.com/log4j/pig -
SpringBlade完整的线上解决方案（企业开发必备）：https://gitee.com/smallc/SpringBlade
