golang框架是否能满足物联网应用的需求？（gola

package main

import ( zvvq好，好zvvq

"fmt"

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"time" copyright 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zvvq，别采集哟

)

func main() { zvvq

// MQTT client options

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opts := mqtt.NewClientOptions() 本文来自zvvq

opts.AddBroker("mqtt://localhost:1883") zvvq.cn

// Connect to MQTT broker

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client, err := mqtt.NewClient(opts)

copyright zvvq

if err != nil { 内容来自samhan666

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

return

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} 内容来自zvvq

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

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

return

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}

// Create a timer to simulate sensor data

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

for range ticker.C { 内容来自zvvq，别采集哟

// Generate random sensor data

data := struct { 内容来自zvvq，别采集哟

Temperature float64 zvvq好，好zvvq

Humidity    float64 zvvq好，好zvvq

}{

Temperature: rand.Float64() * 100, 内容来自samhan666

Humidity:    rand.Float64() * 100,

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}

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// Marshal data to JSON zvvq好，好zvvq

jsonData, err := json.Marshal(data) 本文来自zvvq

if err != nil {

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

return 内容来自samhan

}

// Publish data to MQTT topic

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

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

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

copyright zvvq

}

}

zvvq

}

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package main 内容来自zvvq

import ( 内容来自zvvq，别采集哟

"context"

"flag" 内容来自zvvq，别采集哟

"log" zvvq好，好zvvq

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

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

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) 本文来自zvvq

var ( 内容来自zvvq

projectId = flag.String("project_id", "", "Google Cloud project ID") 内容来自zvvq，别采集哟

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

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

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)

func main() {

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flag.Parse()

// Create an IoT client 内容来自zvvq，别采集哟

ctx := context.Background() 内容来自zvvq

client, err := iot.NewDeviceManagerClient(ctx)

if err != nil {

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

}

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defer client.Close() zvvq.cn

// Get the device 内容来自samhan666

req := &iotpb.GetDeviceRequest{

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

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*projectId, "us-central1", *registryId, *deviceId), copyright zvvq

}

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

if err != nil { zvvq

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

} 内容来自samhan

// Update the device config

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

req = &iotpb.UpdateDeviceRequest{ 内容来自zvvq，别采集哟

Device: device, 内容来自zvvq

UpdateMask: &fieldmask.FieldMask{ zvvq.cn

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

}, 内容来自samhan666

}

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

if err != nil { zvvq.cn

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

}

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

}

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