您需要在生产者端使用proto#Marshal和sarama#ByteEncoder，在消费者端使用proto#Unmarshal。

制作人：

            pixelToSend := &pixel.Pixel{SessionId: t.String()}
            pixelToSendBytes,err := proto.Marshal(pixelToSend)
            if err != nil {
                log.Fatalln("Failed to marshal pixel:",err)
            }

            msg := &sarama.ProducerMessage{
                Topic: topic,Value: sarama.ByteEncoder(pixelToSendBytes),}

消费者：

        receivedPixel := &pixel.Pixel{}
        err := proto.Unmarshal(msg.Value,receivedPixel)
        if err != nil {
            log.Fatalln("Failed to unmarshal pixel:",err)
        }

        log.Printf("Pixel received: %s",receivedPixel)

完整示例：

package main

import (
    pixel "example/pixel"
    "log"
    "os"
    "os/signal"
    "syscall"
    "time"

    "github.com/Shopify/sarama"
    "github.com/golang/protobuf/proto"
)

func main() {
    topic := "your-topic-name"
    brokerList := []string{"localhost:29092"}

    producer,err := newSyncProducer(brokerList)
    if err != nil {
        log.Fatalln("Failed to start Sarama producer:",err)
    }

    go func() {
        ticker := time.NewTicker(time.Second)
        for {
            select {
            case t := <-ticker.C:
                pixelToSend := &pixel.Pixel{SessionId: t.String()}
                pixelToSendBytes,err := proto.Marshal(pixelToSend)
                if err != nil {
                    log.Fatalln("Failed to marshal pixel:",err)
                }

                msg := &sarama.ProducerMessage{
                    Topic: topic,}

                producer.SendMessage(msg)
                log.Printf("Pixel sent: %s",pixelToSend)
            }
        }

    }()

    signals := make(chan os.Signal,1)
    signal.Notify(signals,syscall.SIGHUP,syscall.SIGINT,syscall.SIGTERM)

    partitionConsumer,err := newPartitionConsumer(brokerList,topic)
    if err != nil {
        log.Fatalln("Failed to create Sarama partition consumer:",err)
    }

    log.Println("Waiting for messages...")

    for {
        select {
        case msg := <-partitionConsumer.Messages():
            receivedPixel := &pixel.Pixel{}
            err := proto.Unmarshal(msg.Value,receivedPixel)
            if err != nil {
                log.Fatalln("Failed to unmarshal pixel:",err)
            }

            log.Printf("Pixel received: %s",receivedPixel)
        case <-signals:
            log.Print("Received termination signal. Exiting.")
            return
        }
    }
}

func newSyncProducer(brokerList []string) (sarama.SyncProducer,error) {
    config := sarama.NewConfig()
    config.Producer.Return.Successes = true
    // TODO configure producer

    producer,err := sarama.NewSyncProducer(brokerList,config)
    if err != nil {
        return nil,err
    }

    return producer,nil
}

func newPartitionConsumer(brokerList []string,topic string) (sarama.PartitionConsumer,error) {
    conf := sarama.NewConfig()
    // TODO configure consumer
    consumer,err := sarama.NewConsumer(brokerList,conf)
    if err != nil {
        return nil,err
    }

    partitionConsumer,err := consumer.ConsumePartition(topic,sarama.OffsetOldest)
    if err != nil {
        return nil,err
    }

    return partitionConsumer,err
}