添加MQTT客户端id生成(uuid后5位加1-3位随机数)

mqtt/client.go

@@ -1,9 +1,13 @@
 package mqtt
 
 import (
+	"fmt"
 	"log/slog"
+	"math/rand"
+	"time"
 
 	mqtt "github.com/eclipse/paho.mqtt.golang"
+	"github.com/google/uuid"
 )
 
 // MQTT客户端连接配置
@@ -25,11 +29,12 @@ func NewMqttOptions(address, username, password string) MqttOptions {
 }
 
 var messagePubHandler mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message) {
-	slog.Debug("MQTT收到消息", "topic", msg.Topic(), "msg", msg.Payload())
+	slog.Debug("MQTT收到消息", "topic", msg.Topic(), "msg", string(msg.Payload()))
 }
 
 var connectHandler mqtt.OnConnectHandler = func(client mqtt.Client) {
-	slog.Info("MQTT连接成功")
+	or := client.OptionsReader()
+	slog.Info("MQTT连接成功", "ClientID", or.ClientID())
 	// subs := make(map[string]byte)
 	// subs["$SYS/brokers/+/clients/+/+"] = 0
 	// client.SubscribeMultiple(subs, messagePubHandler)
@@ -40,11 +45,29 @@ var connectLostHandler mqtt.ConnectionLostHandler = func(client mqtt.Client, err
 }
 
 var mqttClient mqtt.Client
+var clientId string
 
+// 初始化MQTT客户端id
+func initClientId() {
+	if clientId == "" {
+		us := uuid.New().String()
+		usl := len(us)
+		sufix5 := us[usl-5 : usl]
+		clientId = fmt.Sprintf("%s%d", sufix5, rand.New(rand.NewSource(time.Now().UnixNano())).Int()%1000)
+	}
+}
+
+// 获取MQTT客户端id
+func GetClientId() string {
+	return clientId
+}
+
+// 启动MQTT
 func Startup(options MqttOptions) {
+	initClientId()
 	opts := mqtt.NewClientOptions()
 	opts.AddBroker(options.Broker)
-	// opts.SetClientID("rtsts_service_3.7")
+	opts.SetClientID(clientId)
 	opts.SetUsername(options.Username)
 	opts.SetPassword(options.Password)
 	opts.SetDefaultPublishHandler(messagePubHandler)