微信公衆號硬件功能開發

設備功能

在“設備功能”處添加產品，接入方案選擇“平臺基礎接入方案”

添加成功後，就有100個配額

服務器配置

URL是後臺回調接口地址，Token是爲了驗證回調信息的合法性的，EncodingAESKey隨機生成即可

服務器配置回調校驗開發

配置校驗回調是以GET方式回調的，同消息事件回調是一個地址，只是請求方式不同。
如果驗證成功，則響應回調請求的echostr值，否則啥也不返回。
代碼示例：

/**
 * 微信硬件平臺配置校驗
 *
 * @param appId
 * @param request
 * @param response
 */
@RequestMapping(value = "/hardware/{appId}", method = RequestMethod.GET)
@ApiOperation(value="微信硬件平臺配置校驗回調", notes="微信硬件平臺配置校驗回調")
public void receiveIotMsg(@PathVariable("appId") String appId, HttpServletRequest request, HttpServletResponse response) {
    logger.info("收到微信硬件消息回調GET:{}", appId);

    // 微信加密簽名
    String signature = request.getParameter("signature");
    // 時間戳
    String timestamp = request.getParameter("timestamp");
    // 隨機數
    String nonce = request.getParameter("nonce");
    // 隨機字符串
    String echostr = request.getParameter("echostr");

    Map<String, String[]> map = request.getParameterMap();
    for (Map.Entry<String, String[]> entry : map.entrySet()) {
        logger.info("{}={}", entry.getKey(), entry.getValue() != null ? entry.getValue()[0] : "");
    }

    // 獲取公衆號信息
    SingleParamRequest<String> singleParamRequest = new SingleParamRequest<>();
    singleParamRequest.setData(appId);
    ServiceJsonBean<OfficialAccount> officialAccountJsonBean = weiXinOfficialAccountService.getOfficialAccountByAppId(singleParamRequest);
    String iotToken = "";
    if (officialAccountJsonBean.getCode() == ErrorCode.SUCCESS.getCode() && officialAccountJsonBean.getData() != null) {
        iotToken = officialAccountJsonBean.getData().getIotToken();
    }

    String curSign = SecurityUtils.encryptSHA1(iotToken, timestamp, nonce);
    if (StringUtils.isEquals(signature, curSign) && StringUtils.isNotEmpty(echostr)) {
        logger.info("驗證成功！");
        try {
            response.getWriter().write(echostr);
        } catch (IOException e) {
            logger.error("response輸出異常", e);
        }
    }
}

設備消息、事件回調開發

消息、事件回調跟校驗回調是同一個接口地址，但是請求方式爲POST，Content-Type: application/json
消息、事件會以json格式的傳輸到後臺

/**
* 微信硬件平臺消息回調接口
*
* @param appId
* @return
*/
@RequestMapping(value = "/hardware/{appId}", method = {RequestMethod.POST}, headers = "Accept=application/json")
@ResponseBody
@ApiOperation(value="微信硬件平臺消息回調", notes="微信硬件平臺消息回調")
public WebJsonBean receiveIotMsg(@PathVariable("appId") String appId, @RequestBody DeviceBindMsg deviceBindMsg) {
   logger.info("收到微信硬件消息回調POST:{}", JSONObject.toJSONString(deviceBindMsg));

   HardwareMsgEvent hardwareMsgEvent = new HardwareMsgEvent(applicationContext, deviceBindMsg, appId);
   applicationContext.publishEvent(hardwareMsgEvent);

   return new WebJsonBean(ErrorCode.SUCCESS);
}