package kafka import ( log2 "Open_IM/pkg/common/log" "errors" "github.com/Shopify/sarama" "github.com/golang/protobuf/proto" ) type Producer struct { topic string addr []string config *sarama.Config producer sarama.SyncProducer } func NewKafkaProducer(addr []string, topic string) *Producer { p := Producer{} p.config = sarama.NewConfig() //Instantiate a sarama Config p.config.Producer.Return.Successes = true //Whether to enable the successes channel to be notified after the message is sent successfully p.config.Producer.RequiredAcks = sarama.WaitForAll //Set producer Message Reply level 0 1 all p.config.Producer.Partitioner = sarama.NewHashPartitioner //Set the hash-key automatic hash partition. When sending a message, you must specify the key value of the message. If there is no key, the partition will be selected randomly p.addr = addr p.topic = topic producer, err := sarama.NewSyncProducer(p.addr, p.config) //Initialize the client if err != nil { panic(err.Error()) return nil } p.producer = producer return &p } func (p *Producer) SendMessage(m proto.Message, key string) (int32, int64, error) { kMsg := &sarama.ProducerMessage{} kMsg.Topic = p.topic kMsg.Key = sarama.StringEncoder(key) bMsg, err := proto.Marshal(m) if err != nil { log2.Error("", "", "proto marshal err = %s", err.Error()) return -1, -1, err } if len(bMsg) == 0 { return 0, 0, errors.New("msg content is nil") } kMsg.Value = sarama.ByteEncoder(bMsg) return p.producer.SendMessage(kMsg) }