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云原生消息引擎BMQ 实例用户指南SDK 参考Go SDK
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问问助手本文介绍如何通过 Go SDK 接入云原生消息引擎 BMQ 并收发消息。
背景信息
前提条件
- 创建资源实例，并获取接入点地址，请参见创建 BMQ 实例。
- 您需要提前在实例所属安全组中放开 9092 端口。具体操作，请参见添加安全组访问规则。
- （可选）您如果需要通过 SASL 用户名和密码进行鉴权，还需提前创建用户并获取密码。具体操作，请参见创建 SASL 用户。
发送消息
编写并运行BmqProducerDemo.go发送消息。
PLAINTEXT
使用PLAINTEXT协议接入点地址连接 BMQ 实例时，无需鉴权。
import (
"log"
"github.com/IBM/sarama"
)
func main() {
brokers := []string{"xxx"} // 接入点地址
config := sarama.NewConfig()
config.Version = sarama.V0_10_2_0
config.Producer.Return.Successes = true
// 创建生产者
producer, err := sarama.NewSyncProducer(brokers, config)
if err != nil {
log.Println("Failed to create producer: ", err)
return
}
defer producer.Close()
// 生产消息
message := &sarama.ProducerMessage{
Topic: "my_topic", //Topic名称
Key: sarama.StringEncoder("test_key"),
Value: sarama.StringEncoder("test_value"),
}
partition, offset, err := producer.SendMessage(message)
if err != nil {
log.Println("Failed to send message: ", err)
return
}
log.Printf("Message sent successfully. Partition: %d, Offset: %d\n", partition, offset)
}
SASL_PLAINTEXT
import (
"log"
"github.com/IBM/sarama"
)
func main() {
brokers := []string{"xxx"} // 接入点地址
config := sarama.NewConfig()
config.Version = sarama.V0_10_2_0
config.Producer.Return.Successes = true
// SASL_PLAINTEXT配置
config.Net.SASL.Enable = true
config.Net.SASL.User = "用户名"
config.Net.SASL.Password = "密码"
config.Net.SASL.Mechanism = sarama.SASLTypePlaintext
config.Net.SASL.Version = 0
// 创建生产者
producer, err := sarama.NewSyncProducer(brokers, config)
if err != nil {
log.Println("Failed to create producer: ", err)
return
}
defer producer.Close()
// 生产消息
message := &sarama.ProducerMessage{
Topic: "my_topic", //Topic名称
Key: sarama.StringEncoder("test_key"),
Value: sarama.StringEncoder("test_value"),
}
partition, offset, err := producer.SendMessage(message)
if err != nil {
log.Println("Failed to send message: ", err)
return
}
log.Printf("Message sent successfully. Partition: %d, Offset: %d\n", partition, offset)
}
SASL_SSL
import (
"log"
"github.com/IBM/sarama"
)
func main() {
brokers := []string{"xxx"} // 接入点地址
config := sarama.NewConfig()
config.Version = sarama.V0_10_2_0
config.Producer.Return.Successes = true
config.Net.SASL.Version = 0
config.Net.TLS.Config = &tls.Config{}
config.Net.TLS.Config.InsecureSkipVerify = true
// SASL_SSL配置
config.Net.SASL.Enable = true
config.Net.SASL.User = "用户"
config.Net.SASL.Password = "密码"
config.Net.SASL.Mechanism = sarama.SASLTypePlaintext
config.Net.TLS.Enable = true
// 创建生产者
producer, err := sarama.NewSyncProducer(brokers, config)
if err != nil {
log.Println("Failed to create producer: ", err)
return
}
defer producer.Close()
// 生产消息
message := &sarama.ProducerMessage{
Topic: "my_topic", //Topic名称
Key: sarama.StringEncoder("test_key"),
Value: sarama.StringEncoder("test_value"),
}
partition, offset, err := producer.SendMessage(message)
if err != nil {
log.Println("Failed to send message: ", err)
return
}
log.Printf("Message sent successfully. Partition: %d, Offset: %d\n", partition, offset)
}
消费消息
编写并运行BmqConsumerDemo.go消费消息。
PLAINTEXT
使用PLAINTEXT协议接入点地址连接 BMQ 实例时，无需鉴权。
package main
import (
"fmt"
"os"
"os/signal"
"sync"
"github.com/IBM/sarama"
)
func main() {
brokers := []string{"xxx"} // 接入点地址
topic := "my_topic" //要消费的topic
cg := "test_cg" //消费者组
config := sarama.NewConfig()
config.Version = sarama.V0_10_2_0
// 1. create client
var client sarama.Client
var err error
client, err = sarama.NewClient(brokers, config)
if err != nil {
fmt.Println("create sarama client error:", err)
}
defer func() {
if err := client.Close(); err != nil {
fmt.Println("client close error:", err)
} else {
fmt.Println("Close client!")
}
}()
// 2. create consumer
consumer, err := sarama.NewConsumerFromClient(client)
defer func() {
if err := consumer.Close(); err != nil {
fmt.Println("consumer close error:", err)
} else {
fmt.Println("Close consumer!")
}
}()
if err != nil {
fmt.Println("new consumer error:", err)
}
// 3. offset manager
offsetManager, err := sarama.NewOffsetManagerFromClient(cg, client)
defer func() {
if err := offsetManager.Close(); err != nil {
fmt.Println("close offset manager error:", err)
} else {
fmt.Println("Close offset manager!")
}
}()
if err != nil {
fmt.Println("new offset manager error:", err)
}
if !config.Consumer.Offsets.AutoCommit.Enable {
defer offsetManager.Commit()
}
thr := sync.WaitGroup{}
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt)
quit := make(chan int)
// 4. start to consume partitions
partitions, err := client.Partitions(topic)
if err != nil {
fmt.Println("get partitions error:", err)
}
fmt.Println("start consume. topic:", topic, "partitions:", partitions)
for _, partition := range partitions {
thr.Add(1)
go consumePartition(quit, &thr, consumer, offsetManager, int32(partition), topic)
}
<-signals
close(quit)
thr.Wait()
}
func consumePartition(quit <-chan int, thr *sync.WaitGroup, consumer sarama.Consumer,
offsetManager sarama.OffsetManager, partition int32, topic string) {
defer thr.Done()
partitionOffsetManager, err := offsetManager.ManagePartition(topic, partition)
if err != nil {
fmt.Println("create partitionOffsetManager err:", err)
}
offset, _ := partitionOffsetManager.NextOffset()
if offset == -1 {
offset = sarama.OffsetNewest
}
var partitionConsumer sarama.PartitionConsumer
partitionConsumer, err = consumer.ConsumePartition(topic, partition, offset)
if err != nil {
fmt.Println("create partition consumer err:", err)
return
}
defer func() {
if err := partitionConsumer.Close(); err != nil {
fmt.Println(err)
} else {
fmt.Println("Close partition", partition)
}
}()
for {
select {
case msg := <-partitionConsumer.Messages():
fmt.Println("[Consume] topic:",
msg.Topic, "parition:", msg.Partition, "offset:", msg.Offset, "key:", msg.Key, "value:", msg.Value)
partitionOffsetManager.MarkOffset(msg.Offset+1, "")
case err := <-partitionConsumer.Errors():
fmt.Println("consume error:", err)
case <-quit:
return
}
}
}
SASL_PLAINTEXT
package main
import (
"fmt"
"os"
"os/signal"
"sync"
"github.com/IBM/sarama"
)
func main() {
brokers := []string{"xxx"} // 接入点地址
topic := "my_topic" //要消费的topic
cg := "test_cg" //消费者组
config := sarama.NewConfig()
config.Version = sarama.V0_10_2_0
// SASL_PLAINTEXT配置
config.Net.SASL.Enable = true
config.Net.SASL.User = "用户名"
config.Net.SASL.Password = "密码"
config.Net.SASL.Mechanism = sarama.SASLTypePlaintext
config.Net.SASL.Version = 0
// 1. create client
var client sarama.Client
var err error
client, err = sarama.NewClient(brokers, config)
if err != nil {
fmt.Println("create sarama client error:", err)
}
defer func() {
if err := client.Close(); err != nil {
fmt.Println("client close error:", err)
} else {
fmt.Println("Close client!")
}
}()
// 2. create consumer
consumer, err := sarama.NewConsumerFromClient(client)
defer func() {
if err := consumer.Close(); err != nil {
fmt.Println("consumer close error:", err)
} else {
fmt.Println("Close consumer!")
}
}()
if err != nil {
fmt.Println("new consumer error:", err)
}
// 3. offset manager
offsetManager, err := sarama.NewOffsetManagerFromClient(cg, client)
defer func() {
if err := offsetManager.Close(); err != nil {
fmt.Println("close offset manager error:", err)
} else {
fmt.Println("Close offset manager!")
}
}()
if err != nil {
fmt.Println("new offset manager error:", err)
}
if !config.Consumer.Offsets.AutoCommit.Enable {
defer offsetManager.Commit()
}
thr := sync.WaitGroup{}
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt)
quit := make(chan int)
// 4. start to consume partitions
partitions, err := client.Partitions(topic)
if err != nil {
fmt.Println("get partitions error:", err)
}
fmt.Println("start consume. topic:", topic, "partitions:", partitions)
for _, partition := range partitions {
thr.Add(1)
go consumePartition(quit, &thr, consumer, offsetManager, int32(partition), topic)
}
<-signals
close(quit)
thr.Wait()
}
func consumePartition(quit <-chan int, thr *sync.WaitGroup, consumer sarama.Consumer,
offsetManager sarama.OffsetManager, partition int32, topic string) {
defer thr.Done()
partitionOffsetManager, err := offsetManager.ManagePartition(topic, partition)
if err != nil {
fmt.Println("create partitionOffsetManager err:", err)
}
offset, _ := partitionOffsetManager.NextOffset()
if offset == -1 {
offset = sarama.OffsetNewest
}
var partitionConsumer sarama.PartitionConsumer
partitionConsumer, err = consumer.ConsumePartition(topic, partition, offset)
if err != nil {
fmt.Println("create partition consumer err:", err)
return
}
defer func() {
if err := partitionConsumer.Close(); err != nil {
fmt.Println(err)
} else {
fmt.Println("Close partition", partition)
}
}()
for {
select {
case msg := <-partitionConsumer.Messages():
fmt.Println("[Consume] topic:",
msg.Topic, "parition:", msg.Partition, "offset:", msg.Offset, "key:", msg.Key, "value:", msg.Value)
partitionOffsetManager.MarkOffset(msg.Offset+1, "")
case err := <-partitionConsumer.Errors():
fmt.Println("consume error:", err)
case <-quit:
return
}
}
}
SASL_SSL
package main
import (
"fmt"
"os"
"os/signal"
"sync"
"github.com/IBM/sarama"
)
func main() {
brokers := []string{"xxx"} // 接入点地址
topic := "my_topic" //要消费的topic
cg := "test_cg" //消费者组
config := sarama.NewConfig()
config.Version = sarama.V0_10_2_0
// SASL_SSL配置
config.Net.SASL.Enable = true
config.Net.SASL.User = "用户"
config.Net.SASL.Password = "密码"
config.Net.SASL.Mechanism = sarama.SASLTypePlaintext
config.Net.TLS.Enable = true
config.Net.SASL.Version = 0
config.Net.TLS.Config = &tls.Config{}
config.Net.TLS.Config.InsecureSkipVerify = true
// 1. create client
var client sarama.Client
var err error
client, err = sarama.NewClient(brokers, config)
if err != nil {
fmt.Println("create sarama client error:", err)
}
defer func() {
if err := client.Close(); err != nil {
fmt.Println("client close error:", err)
} else {
fmt.Println("Close client!")
}
}()
// 2. create consumer
consumer, err := sarama.NewConsumerFromClient(client)
defer func() {
if err := consumer.Close(); err != nil {
fmt.Println("consumer close error:", err)
} else {
fmt.Println("Close consumer!")
}
}()
if err != nil {
fmt.Println("new consumer error:", err)
}
// 3. offset manager
offsetManager, err := sarama.NewOffsetManagerFromClient(cg, client)
defer func() {
if err := offsetManager.Close(); err != nil {
fmt.Println("close offset manager error:", err)
} else {
fmt.Println("Close offset manager!")
}
}()
if err != nil {
fmt.Println("new offset manager error:", err)
}
if !config.Consumer.Offsets.AutoCommit.Enable {
defer offsetManager.Commit()
}
thr := sync.WaitGroup{}
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt)
quit := make(chan int)
// 4. start to consume partitions
partitions, err := client.Partitions(topic)
if err != nil {
fmt.Println("get partitions error:", err)
}
fmt.Println("start consume. topic:", topic, "partitions:", partitions)
for _, partition := range partitions {
thr.Add(1)
go consumePartition(quit, &thr, consumer, offsetManager, int32(partition), topic)
}
<-signals
close(quit)
thr.Wait()
}
func consumePartition(quit <-chan int, thr *sync.WaitGroup, consumer sarama.Consumer,
offsetManager sarama.OffsetManager, partition int32, topic string) {
defer thr.Done()
partitionOffsetManager, err := offsetManager.ManagePartition(topic, partition)
if err != nil {
fmt.Println("create partitionOffsetManager err:", err)
}
offset, _ := partitionOffsetManager.NextOffset()
if offset == -1 {
offset = sarama.OffsetNewest
}
var partitionConsumer sarama.PartitionConsumer
partitionConsumer, err = consumer.ConsumePartition(topic, partition, offset)
if err != nil {
fmt.Println("create partition consumer err:", err)
return
}
defer func() {
if err := partitionConsumer.Close(); err != nil {
fmt.Println(err)
} else {
fmt.Println("Close partition", partition)
}
}()
for {
select {
case msg := <-partitionConsumer.Messages():
fmt.Println("[Consume] topic:",
msg.Topic, "parition:", msg.Partition, "offset:", msg.Offset, "key:", msg.Key, "value:", msg.Value)
partitionOffsetManager.MarkOffset(msg.Offset+1, "")
case err := <-partitionConsumer.Errors():
fmt.Println("consume error:", err)
case <-quit:
return
}
}
}
最近更新时间：2025.08.04 17:30:00
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