微信公众号关键词自动回复

今天主要给大家讲一下如何实现微信公众号关键词的自动回复功能，就如网站的文章而言，进行人机识别，需要关注公众号回复验证码获取到验证码从而展示文章内容，，具体效果如下图。

springboot 2.3.2RELEASE

在这里插入图片描述

1、微信公众平台创建公众号

首先需要自行前往微信公众平台创建公众号(博主已经有公众号就不在进行讲解这一步了(注册简单，自行百度))

2、微信公众平台基础配置

在公众号平台选择基础配置进行服务器的配置，如下图
在这里插入图片描述

1.url：填写你后端的接口地址，get请求
2.token：自己随便定义一个
3.EncodingAESKey：可以自己选择也可以随机生成
4.加解密方式：根据自己的实际情况来选择

3、pom引入依赖

    <!--微信公众号关键词自动回复--><dependency><groupId>com.github.binarywang</groupId><artifactId>weixin-java-mp</artifactId><version>3.4.0</version>
</dependency>

4、application.yml

wechat:app-id: 
# 公众号AppSecretsecret: 
# 公众号Tokentoken: 
# 公众号AES KeyaesKey:

5、新建WechatProperties类

@Data
@Configuration
@ConfigurationProperties(prefix = "wechat")
public class WechatProperties {private String appId;private String secret;private String token;private String aesKey;
}

6、新建WechatConfiguration类

@Configuration
public class WechatConfiguration {@Resourceprivate WechatProperties wechatMpProperties;@Beanpublic WxMpConfigStorage wxMpConfigStorage() {WxMpInMemoryConfigStorage configStorage = new WxMpInMemoryConfigStorage();configStorage.setAppId(wechatMpProperties.getAppId());configStorage.setSecret(wechatMpProperties.getSecret());configStorage.setToken(wechatMpProperties.getToken());configStorage.setAesKey(wechatMpProperties.getAesKey());return configStorage;}@Beanpublic WxMpService wxMpService(WxMpConfigStorage wxMpConfigStorage) {WxMpService wxMpService = new WxMpServiceImpl();wxMpService.setWxMpConfigStorage(wxMpConfigStorage);return wxMpService;}
}

7.controller层代码

此处需要注意controller接口名，需要与前面公众号接口配置填写的url要一致

/*** 微信接口相关控制器* Created by PeakGao on 2023/8/5.*/@RestController
@RequestMapping("/wechat")
@RequiredArgsConstructor
public class ApiWeChatController extends BaseController {private final WxMpService wxMpService;/*** 微信公众号服务器配置校验token(这个接口是配置在服务器配置中的)** @param signature 微信加密签名，signature结合了开发者填写的token参数和请求中的timestamp参数、nonce参数。* @param timestamp 时间戳* @param nonce     随机数* @param echostr   随机字符串* @return*/@GetMapping(produces = "text/plain;charset=utf-8")public String checkSignature(@RequestParam(name = "signature") String signature,@RequestParam(name = "timestamp") String timestamp,@RequestParam(name = "nonce") String nonce,@RequestParam(name = "echostr") String echostr) {logger.info("接收来自微信服务器得认证消息：[{},{},{},{}]", signature, timestamp, nonce, echostr);if (wxMpService.checkSignature(timestamp, nonce, signature)) {return echostr;}return "Invalid signature";}/*** 关键字回复** @param request* @return*/@PostMapping(produces = "application/xml; charset=UTF-8")public String handleMsg(HttpServletRequest request) {try {WxMpXmlMessage message = WxMpXmlMessage.fromXml(request.getInputStream());String content = message.getContent();logger.info("公众号请求类型:{};内容为:{}", message.getMsgType(), content);if (WxConsts.XmlMsgType.TEXT.equals(message.getMsgType())) {if ("验证码".equals(content)) {String code = RandomUtils.generationNumberChar(6);String msg = MessageFormat.format("您的本次验证码:{0},该验证码30分钟内有效。", code);redisUtil.set(Constant.WECHAT_CODE + code, code, 1800);return returnMsg(msg, message);}}} catch (Exception e) {e.printStackTrace();}return "";}/*** 返回消息** @param msg     消息内容* @param message* @return*/private static String returnMsg(String msg, WxMpXmlMessage message) {WxMpXmlOutTextMessage outMessage = WxMpXmlOutTextMessage.TEXT().content(msg).fromUser(message.getToUser()).toUser(message.getFromUser()).build();return outMessage.toXml();}}