golang中比較好用的kafka client有
其中 sarama的使用者應該是最多的, 然后還有一個sarama的cluster版本sarama-cluster
本文簡單描述下sarama的一些簡單使用
生產者接口
func producer_test() { fmt.Printf("producer_test\n") config := sarama.NewConfig() config.Producer.RequiredAcks = sarama.WaitForAll config.Producer.Partitioner = sarama.NewRandomPartitioner config.Producer.Return.Successes = true config.Producer.Return.Errors = true config.Version = sarama.V0_11_0_2 producer, err := sarama.NewAsyncProducer([]string{"localhost:9092"}, config) if err != nil { fmt.Printf("producer_test create producer error :%s\n", err.Error()) return } defer producer.AsyncClose() // send message msg := &sarama.ProducerMessage{ Topic: "kafka_go_test", Key: sarama.StringEncoder("go_test"), } value := "this is message" for { fmt.Scanln(&value) msg.Value = sarama.ByteEncoder(value) fmt.Printf("input [%s]\n", value) // send to chain producer.Input() <- msg select { case suc := <-producer.Successes(): fmt.Printf("offset: %d, timestamp: %s", suc.Offset, suc.Timestamp.String()) case fail := <-producer.Errors(): fmt.Printf("err: %s\n", fail.Err.Error()) } } } 消費者接口
func consumer_test() { fmt.Printf("consumer_test") config := sarama.NewConfig() config.Consumer.Return.Errors = true config.Version = sarama.V0_11_0_2 // consumer consumer, err := sarama.NewConsumer([]string{"localhost:9092"}, config) if err != nil { fmt.Printf("consumer_test create consumer error %s\n", err.Error()) return } defer consumer.Close() partition_consumer, err := consumer.ConsumePartition("kafka_go_test", 0, sarama.OffsetOldest) if err != nil { fmt.Printf("try create partition_consumer error %s\n", err.Error()) return } defer partition_consumer.Close() for { select { case msg := <-partition_consumer.Messages(): fmt.Printf("msg offset: %d, partition: %d, timestamp: %s, value: %s\n", msg.Offset, msg.Partition, msg.Timestamp.String(), string(msg.Value)) case err := <-partition_consumer.Errors(): fmt.Printf("err :%s\n", err.Error()) } } } 元數據接口
func metadata_test() { fmt.Printf("metadata test\n") config := sarama.NewConfig() config.Version = sarama.V0_11_0_2 client, err := sarama.NewClient([]string{"localhost:9092"}, config) if err != nil { fmt.Printf("metadata_test try create client err :%s\n", err.Error()) return } defer client.Close() // get topic set topics, err := client.Topics() if err != nil { fmt.Printf("try get topics err %s\n", err.Error()) return } fmt.Printf("topics(%d):\n", len(topics)) for _, topic := range topics { fmt.Println(topic) } // get broker set brokers := client.Brokers() fmt.Printf("broker set(%d):\n", len(brokers)) for _, broker := range brokers { fmt.Printf("%s\n", broker.Addr()) } }作者：yandaren
鏈接：https://www.jianshu.com/p/3d4655cd7054
來源：簡書
著作權歸作者所有。商業轉載請聯系作者獲得授權，非商業轉載請注明出處。