golang操作rocketmq的示例代码

下载

go get github.com/apache/rocketmq-client-go/v2

代码

func main() {
	// 1. 创建主题
	//CreateTopic("test-04", 10909)
	// 2. 生产者向主题中发送消息
	//SendSyncMessage("hello world0002")
	// 3. 消费者订阅主题并消费
	SubscribeMessage()
}
func CreateTopic(topicName string, port int) {
	// 创建主题
	testAdmin, err := admin.NewAdmin(admin.WithResolver(primitive.NewPassthroughResolver([]string{"ip:server_port"})))
	if err != nil {
		fmt.Println(err)
	}
	err = testAdmin.CreateTopic(
		context.Background(),
		admin.WithTopicCreate(topicName),
		admin.WithBrokerAddrCreate(fmt.Sprintf("ip:%d", port)),
	)
	fmt.Println(err)
func SendSyncMessage(message string) {
	endPoint := []string{"ip:server_port"}
	p, err := rocketmq.NewProducer(
		producer.WithNameServer(endPoint),
		//producer.WithNsResolver(primitive.NewPassthroughResolver(endPoint)),
		producer.WithRetry(2),
	err = p.Start()
	result, err := p.SendSync(context.Background(), &primitive.Message{
		Topic: "test",
		Body:  []byte(message),
	})
	fmt.Println(result.Status, result)
func SubscribeMessage() {
	// 订阅主题、并消费
	c, err := rocketmq.NewPushConsumer(
		consumer.WithNameServer(endPoint),
		consumer.WithConsumerModel(consumer.Clustering),
		consumer.WithGroupName("GID_TEST01"),
		//fmt.Println(err)
	err = c.Subscribe("test", consumer.MessageSelector{}, func(ctx context.Context,
		msgs ...*primitive.MessageExt) (consumer.ConsumeResult, error) {
		for i := range msgs {
			fmt.Printf("subscribe callback: %v \n", msgs[i])
		}
		return consumer.ConsumeSuccess, nil
		//fmt.Println(err.Error())
	// Note: start after subscribe
	err = c.Start()
		os.Exit(-1)
	c.Shutdown()

参考文档

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