golang框架是否能满足物联网应用的需求？（gola

package main

import ( zvvq

"fmt"

copyright zvvq

"time" zvvq好，好zvvq

"encoding/json"

"<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>"

内容来自samhan

)

func main() { zvvq

// MQTT client options

copyright zvvq

opts := mqtt.NewClientOptions() zvvq.cn

opts.AddBroker("mqtt://localhost:1883") 内容来自samhan

// Connect to MQTT broker zvvq好，好zvvq

client, err := mqtt.NewClient(opts)

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if err != nil {

zvvq.cn

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

return zvvq.cn

} 内容来自zvvq

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

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

return

内容来自samhan

}

// Create a timer to simulate sensor data

ticker := time.NewTicker(1 time.Second)

内容来自zvvq，别采集哟

for range ticker.C { 内容来自zvvq，别采集哟

// Generate random sensor data 内容来自samhan666

data := struct { copyright zvvq

Temperature float64

zvvq.cn

Humidity    float64

zvvq

}{

Temperature: rand.Float64() 100, zvvq好，好zvvq

Humidity:    rand.Float64() 100,

} 内容来自zvvq，别采集哟

// Marshal data to JSON

jsonData, err := json.Marshal(data)

if err != nil { copyright zvvq

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

return 内容来自samhan

} 本文来自zvvq

// Publish data to MQTT topic zvvq好，好zvvq

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

if token.Wait() && token.Error() != nil {

zvvq

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

} 内容来自zvvq，别采集哟

} 本文来自zvvq

} 内容来自samhan666

package main zvvq.cn

import (

zvvq好，好zvvq

"context" zvvq.cn

"flag" zvvq

"log" 本文来自zvvq

iot "cloud.google.com/go/iot/apiv1"

内容来自zvvq

"cloud.google.com/go/iot/apiv1/iotpb"

zvvq.cn

) zvvq.cn

var ( zvvq.cn

projectId = flag.String("project_id", "", "Google Cloud project ID") 内容来自samhan

registryId = flag.String("registry_id", "", "Cloud IoT registry ID") 本文来自zvvq

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

内容来自samhan

)

func main() { 内容来自samhan

flag.Parse() 本文来自zvvq

// Create an IoT client zvvq.cn

ctx := context.Background()

client, err := iot.NewDeviceManagerClient(ctx) 内容来自samhan

if err != nil {

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

}

zvvq好，好zvvq

defer client.Close() 内容来自zvvq

// Get the device zvvq

req := &iotpb.GetDeviceRequest{

内容来自zvvq

Name: fmt.Sprintf("projects/%s/locations/%s/registries/%s/devices/%s",

内容来自zvvq

projectId, "us-central1", registryId, deviceId), 内容来自samhan666

}

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

if err != nil {

zvvq

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

} 本文来自zvvq

// Update the device config 内容来自zvvq

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

req = &iotpb.UpdateDeviceRequest{ zvvq.cn

Device: device,

UpdateMask: &fieldmask.FieldMask{ 内容来自samhan666

Paths: []string{"config.binary_data"}, 内容来自samhan666

},

内容来自zvvq，别采集哟

} 内容来自zvvq

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

if err != nil { 内容来自samhan666

log.Fatalf("Failed to update device: %v", err) 内容来自samhan

}

内容来自samhan

log.Printf("Updated device: %s", device.Id)

zvvq

}