生产者:
package main import ( "github.com/Shopify/sarama" "fmt" "time" ) func main() { config := sarama.NewConfig() config.Producer.RequiredAcks = sarama.WaitForAll config.Producer.Partitioner = sarama.NewRandomPartitioner config.Producer.Return.Successes = true client, err := sarama.NewSyncProducer([]string{"localhost:9092"}, config) if err != nil { fmt.Println("producer close, err:", err) return } defer client.Close() for true { msg := &sarama.ProducerMessage{} msg.Topic = "nginx_log" msg.Value = sarama.StringEncoder("this is s good test") pid, offset, err := client.SendMessage(msg) if err != nil { fmt.Println("send msg failed err :", err) return } fmt.Printf("pid:%v offset:%v ", pid, offset) time.Sleep(10*time.Second) } }
消费者
package main import ( "sync" "github.com/Shopify/sarama" "strings" "fmt" "time" ) var wg sync.WaitGroup //用来等待一组goroutine结束 func main() { consumer, err := sarama.NewConsumer(strings.Split("localhost:9092", ","), nil) if err != nil { fmt.Println("failed to start consumer:%s", err) return } partitionList, err := consumer.Partitions("nginx_long") if err != nil { fmt.Println("failed to get the list of partitions:", err) } fmt.Println(partitionList) for partition := range partitionList{ pc, err := consumer.ConsumePartition("nginx_log", int32(partition),sarama.OffsetNewest) if err != nil { fmt.Println("failed to start consumer for partition %d:%s ", partition, err) return } defer pc.AsyncClose() go func(sarama.PartitionConsumer) { //kafka里有几个分区就起几个goroutine for msg := range pc.Messages(){//返回一个channel fmt.Printf("Partition:%d, Offset:%d, key:%s, value:%s", msg.Partition, msg.Offset, string(msg.Key), string(msg.Value)) fmt.Println() } }(pc) } time.Sleep(time.Hour) consumer.Close() }
生产者执行结果界面
消费者执行结果界面