判断mqtt客户端是否在线

iot-access/access-api/src/main/java/com/njcn/access/config/MqttInfo.java

@@ -0,0 +1,29 @@
+package com.njcn.access.config;
+
+import lombok.Data;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.annotation.Order;
+
+/**
+ * 类的介绍：
+ *
+ * @author xuyang
+ * @version 1.0.0
+ * @createTime 2023/7/14 15:16
+ */
+@Data
+@Configuration
+@Order(10)
+public class MqttInfo {
+
+    @Value("${mqtt.clientUrl}")
+    private String url;
+
+    @Value("${mqtt.secretKeyUserName}")
+    private String userName;
+
+    @Value("${mqtt.secretKeyPassword}")
+    private String password;
+
+}

iot-access/access-api/src/main/java/com/njcn/access/enums/AccessResponseEnum.java

@@ -16,6 +16,7 @@ public enum AccessResponseEnum {
      */
     NDID_NO_FIND("A0301", "nDid在平台端未找到或者已注册"),
 
+    MISSING_CLIENT("A0302","设备客户端不在线!"),
     MODEL_REPEAT("A0302", "模板重复,请勿重复录入!"),
     MODEL_NO_FIND("A0302", "模板不存在,请先录入模板数据!"),
 

iot-access/access-api/src/main/java/com/njcn/access/pojo/dto/mqtt/MqttClientDto.java

@@ -0,0 +1,26 @@
+package com.njcn.access.pojo.dto.mqtt;
+
+import com.alibaba.nacos.shaded.com.google.gson.annotations.SerializedName;
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 类的介绍：
+ *
+ * @author xuyang
+ * @version 1.0.0
+ * @createTime 2023/7/17 9:09
+ */
+@Data
+public class MqttClientDto implements Serializable {
+
+    @SerializedName("clientid")
+    private String clientId;
+
+    @SerializedName("username")
+    private String userName;
+
+    private boolean connected;
+
+}