weixin-java-mp集成微信公众号自带客服功能

public class TextBuilder extends AbstractBuilder {

  @Override
  public WxMpXmlOutMessage build(String content, WxMpXmlMessage wxMessage,
      WeixinService service)   {
    WxMpXmlOutTextMessage m = WxMpXmlOutMessage.TEXT().content(content)
        .fromUser(wxMessage.getToUser()).toUser(wxMessage.getFromUser())
        .build();
    return m;
  }
  public WxMpXmlOutMessage buildKf(String content, WxMpXmlMessage wxMessage,WeixinService service) {
    WxMpXmlOutTextMessage m = WxMpXmlOutMessage.TEXT().content(content)
            .fromUser(wxMessage.getToUser()).toUser(wxMessage.getFromUser())
            .build();
    m.setToUserName(wxMessage.getFromUser());
    m.setFromUserName(wxMessage.getToUser());
    m.setCreateTime(System.currentTimeMillis() / 1000l);
    m.setMsgType("transfer_customer_service");
    return m;
  }

}

@Component
public class MsgHandler extends AbstractHandler {

    @Resource
    private WeixinService weixinService;


    @Override
    public WxMpXmlOutMessage handle(WxMpXmlMessage wxMessage, Map<String, Object> context, WxMpService wxMpService, WxSessionManager sessionManager) throws WxErrorException {
        WeixinService weixinService = (WeixinService) wxMpService;
        if(wxMessage.getMsgType().contains("text")) { //收到的是文本消息
            //回复转人工服务
            if("人工客服".equals(wxMessage.getContent())){
                return new TextBuilder().buildKf("感谢关注", wxMessage, weixinService);
            }
        }
    }

@Service
public class WeixinService extends WxMpServiceImpl {
  private final Logger logger = LoggerFactory.getLogger(this.getClass());

  @Autowired
  protected LogHandler logHandler;

  @Autowired
  protected NullHandler nullHandler;

  @Autowired
  protected KfSessionHandler kfSessionHandler;

  @Autowired
  protected StoreCheckNotifyHandler storeCheckNotifyHandler;

  @Autowired
  private WxMpConfig wxConfig;

  @Autowired
  private LocationHandler locationHandler;

  @Autowired
  private MenuHandler menuHandler;

  @Autowired
  private MsgHandler msgHandler;

  @Autowired
  private UnsubscribeHandler unsubscribeHandler;

  @Autowired
  private SubscribeHandler subscribeHandler;
  @Autowired
  private ScanHandler scanHandler;

  private WxMpMessageRouter router;

  @PostConstruct
  public void init() {
    final WxMpInMemoryConfigStorage config = new WxMpInMemoryConfigStorage();
    config.setAppId(this.wxConfig.getAppid());// 设置微信公众号的appid
    config.setSecret(this.wxConfig.getAppsecret());// 设置微信公众号的app corpSecret
    config.setToken(this.wxConfig.getToken());// 设置微信公众号的token
    config.setAesKey(this.wxConfig.getAesKey());// 设置消息加解密密钥
    super.setWxMpConfigStorage(config);

    this.refreshRouter();
  }

  private void refreshRouter() {
    final WxMpMessageRouter newRouter = new WxMpMessageRouter(this);

    // 记录所有事件的日志
    newRouter.rule().handler(this.logHandler).next();

    // 接收客服会话管理事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT).event(WxConsts.EVT_KF_CREATE_SESSION)
        .handler(this.kfSessionHandler).end();
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT).event(WxConsts.EVT_KF_CLOSE_SESSION)
        .handler(this.kfSessionHandler).end();
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT).event(WxConsts.EVT_KF_SWITCH_SESSION)
        .handler(this.kfSessionHandler).end();

    // 门店审核事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
      .event(WxConsts.EVT_POI_CHECK_NOTIFY)
      .handler(this.storeCheckNotifyHandler)
      .end();

    // 自定义菜单事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
        .event(WxConsts.BUTTON_CLICK).handler(this.getMenuHandler()).end();

    // 点击菜单连接事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
        .event(WxConsts.BUTTON_VIEW).handler(this.nullHandler).end();

    // 关注事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
        .event(WxConsts.EVT_SUBSCRIBE).handler(this.getSubscribeHandler())
        .end();

    // 取消关注事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
        .event(WxConsts.EVT_UNSUBSCRIBE).handler(this.getUnsubscribeHandler())
        .end();

    // 上报地理位置事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
        .event(WxConsts.EVT_LOCATION).handler(this.getLocationHandler()).end();

    // 接收地理位置消息
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_LOCATION)
        .handler(this.getLocationHandler()).end();

    // 扫码事件
    newRouter.rule().async(false).msgType(WxConsts.XML_MSG_EVENT)
        .event(WxConsts.EVT_SCAN).handler(this.getScanHandler()).end();

    // 默认
    newRouter.rule().async(false).handler(this.getMsgHandler()).end();

    this.router = newRouter;
  }


  public WxMpXmlOutMessage route(WxMpXmlMessage message) {
    try {
      return this.router.route(message);
    } catch (Exception e) {
      this.logger.error(e.getMessage(), e);
    }

    return null;
  }

  public boolean hasKefuOnline() {
    try {
      WxMpKfOnlineList kfOnlineList = this.getKefuService().kfOnlineList();
      return kfOnlineList != null && kfOnlineList.getKfOnlineList().size() > 0;
    } catch (Exception e) {
      this.logger.error("获取客服在线状态异常: " + e.getMessage(), e);
    }

    return false;
  }

  protected MenuHandler getMenuHandler() {
    return this.menuHandler;
  }

  protected SubscribeHandler getSubscribeHandler() {
    return this.subscribeHandler;
  }

  protected UnsubscribeHandler getUnsubscribeHandler() {
    return this.unsubscribeHandler;
  }

  protected AbstractHandler getLocationHandler() {
    return this.locationHandler;
  }

  protected MsgHandler getMsgHandler() {
    return this.msgHandler;
  }

  protected AbstractHandler getScanHandler() {
    return scanHandler;
  }


  /**
   * 为生成二维码准备ticket
   * @return
   */
  public WxMpQrCodeTicket generateTicketForTwoDimensionCode(Long customerId) throws WxErrorException {
    //永久二维码
    return this.getQrcodeService().qrCodeCreateLastTicket(customerId.intValue());
    //临时二维码
    //return this.getQrcodeService().qrCodeCreateTmpTicket(customerId.intValue(), 2592000);
  }
}