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例如下： void mqtt_connect_failure(void *context, MQTTAsync_failureData *response) { retryTimes++; printf("connect failed: messageId %d, code %d
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
在查询框中输入条件，在下拉框中选择需要授权的区域。 指定所有项目与指定区域（如北京四）的区别：因使用IAM获取token时会指定scope是domain或project级别，若您用的是domain级别的token则应该选择所有项目，反之则选择指定区域。 单击右下角的“确认”，完成用户组授权。 父主题： 方案咨询
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
"projects": [ { "domain_id": "65382450e8f64ac0870cd180d...", "is_domain": false, "parent_id": "6
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
消息体为二进制格式。 物联网平台向应用返回200 OK，携带命令状态为SENT。（如果设备不在线或者设备没收到指令则下发失败，命令状态为FAILED） 设备收到命令后返回ACK响应。 若应用订阅了命令的状态变更通知，物联网平台通过命令状态更新通知接口推送消息给应用，携带命令状态为DELIVERED。消息样例如下：
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
@Override public void onFailure(Object context, Throwable var2) { System.out.println("reportDeviceMessage fail: " + var2); } }); 订阅topic：
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
被授权方进入“授权”界面，单击在“被授权列表”下的“发起授权请求”。 图1 发起授权请求 被授权方填写授权方的账号名称或者账号ID（即IAM的Domain Name或Domain ID），单击“获取短信验证码”。 图2 发起授权请求详情 系统将向授权方绑定的手机号发送短信验证码，被授权方从授权方获取到
bcs:huaweiCloudChainInstance:list bcs:huaweiCloudChainEndpoint:list bcs:huaweiCloudChainChain:getChain bcs:huaweiCloudChainInstance:get bcs:
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
= connect(topic); var times = 0; while (!success) { await sleep(duration) if (duration < maxDuration) { duration
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
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