golang框架是否能满足物联网应用的需求？（gola

package main zvvq.cn

import ( 本文来自zvvq

"fmt"

"time"

"encoding/json" 内容来自zvvq，别采集哟

"<a style=color:f60; text-decoration:underline; href="https://www.php.cn/zt/15841.html" target="_blank">git</a>hub.com/eclipse/paho.mqtt.<a style=color:f60; text-decoration:underline; href="https://www.php.cn/zt/16009.html" target="_blank">golang</a>"

)

zvvq好，好zvvq

func main() {

// MQTT client options

内容来自samhan

opts := mqtt.NewClientOptions() zvvq好，好zvvq

opts.AddBroker("mqtt://localhost:1883") 内容来自zvvq，别采集哟

// Connect to MQTT broker

内容来自zvvq

client, err := mqtt.NewClient(opts)

内容来自zvvq，别采集哟

if err != nil { 内容来自zvvq，别采集哟

fmt.Println("Error connecting to MQTT broker:", err)

copyright zvvq

return

内容来自samhan666

} 内容来自samhan666

if token := client.Connect(); token.Wait() && token.Error() != nil { 本文来自zvvq

fmt.Println("Error connecting to MQTT broker:", token.Error())

return zvvq.cn

}

// Create a timer to simulate sensor data

内容来自samhan666

ticker := time.NewTicker(1 time.Second) 内容来自zvvq

for range ticker.C {

// Generate random sensor data 内容来自zvvq，别采集哟

data := struct { zvvq

Temperature float64

Humidity    float64

}{ 内容来自samhan666

Temperature: rand.Float64() 100,

内容来自zvvq

Humidity:    rand.Float64() 100,

}

内容来自samhan666

// Marshal data to JSON

zvvq.cn

jsonData, err := json.Marshal(data) 内容来自samhan666

if err != nil { 内容来自zvvq，别采集哟

fmt.Println("Error marshalling data:", err)

return

内容来自zvvq

}

// Publish data to MQTT topic

zvvq.cn

token := client.Publish("sensor/data", 0, false, jsonData) zvvq好，好zvvq

if token.Wait() && token.Error() != nil { 内容来自zvvq

fmt.Println("Error publishing data:", token.Error()) zvvq

} zvvq好，好zvvq

}

内容来自zvvq

}

package main

import ( zvvq好，好zvvq

"context"

"flag"

内容来自samhan

"log"

本文来自zvvq

iot "cloud.google.com/go/iot/apiv1" 内容来自samhan666

"cloud.google.com/go/iot/apiv1/iotpb" 内容来自zvvq，别采集哟

) 内容来自zvvq，别采集哟

var (

zvvq.cn

projectId = flag.String("project_id", "", "Google Cloud project ID") 本文来自zvvq

registryId = flag.String("registry_id", "", "Cloud IoT registry ID")

deviceId   = flag.String("device_id", "", "Cloud IoT device ID")

zvvq.cn

)

copyright zvvq

func main() { copyright zvvq

flag.Parse()

zvvq好，好zvvq

// Create an IoT client zvvq

ctx := context.Background() zvvq好，好zvvq

client, err := iot.NewDeviceManagerClient(ctx)

if err != nil { zvvq.cn

log.Fatalf("Failed to create client: %v", err)

内容来自samhan666

}

zvvq.cn

defer client.Close() zvvq

// Get the device

req := &iotpb.GetDeviceRequest{ 本文来自zvvq

Name: fmt.Sprintf("projects/%s/locations/%s/registries/%s/devices/%s", 本文来自zvvq

projectId, "us-central1", registryId, deviceId), 本文来自zvvq

} 内容来自zvvq

device, err := client.GetDevice(ctx, req) copyright zvvq

if err != nil { 内容来自samhan666

log.Fatalf("Failed to get device: %v", err)

} zvvq

// Update the device config zvvq好，好zvvq

device.Config.BinaryData = []byte("Hello from Go!")

zvvq

req = &iotpb.UpdateDeviceRequest{

copyright zvvq

Device: device,

zvvq好，好zvvq

UpdateMask: &fieldmask.FieldMask{

Paths: []string{"config.binary_data"},

本文来自zvvq

}, 本文来自zvvq

} zvvq.cn

device, err = client.UpdateDevice(ctx, req)

if err != nil { 本文来自zvvq

log.Fatalf("Failed to update device: %v", err) 内容来自zvvq，别采集哟

}

内容来自samhan666

log.Printf("Updated device: %s", device.Id) 内容来自zvvq，别采集哟

} zvvq.cn