After the streaming call ends, client response.tailer() returns empty

[YarBor]

Environment

• Server: v3.1.1
• Client: v3.1.1
• Protocol: tri
• Registry: -

Issue description

client-code

func testBidiStream(cli greet.GreetService) error {
	stream, err := cli.GreetStream(context.Background())
	if err != nil {
		return err
	}
	for i := 0; i < 10; i++ {
		if sendErr := stream.Send(&greet.GreetStreamRequest{Name: "triple"}); sendErr != nil {
			return err
		}
		_, err := stream.Recv()
		if err != nil {
			return err
		}
	}
	if err := stream.CloseRequest(); err != nil {
		return err
	}
	if err := stream.CloseResponse(); err != nil {
		return err
	}

	fmt.Printf("%v\n", stream.ResponseTrailer())
	return nil
}

---

server-code

func (srv *GreetTripleServer) GreetStream(ctx context.Context, stream greet.GreetService_GreetStreamServer) error {
	str, _ := json.MarshalIndent(ctx.Value(constant.AttachmentKey), "", "\t")
	fmt.Printf("%v\n", string(str))
	for {
		req, err := stream.Recv()
		if err != nil {
			if triple.IsEnded(err) {
				break
			}
			return fmt.Errorf("triple BidiStream recv error: %s", err)
		}
		if err := stream.Send(&greet.GreetStreamResponse{Greeting: req.Name}); err != nil {
			return fmt.Errorf("triple BidiStream send error: %s", err)
		}
	}
	stream.ResponseTrailer().Set("responeTrailerKey", strconv.Itoa(rand.Int()))
	stream.ResponseTrailer().Add("responeTrailerKey", strconv.Itoa(rand.Int()))
	return nil
}

是我的使用方式有问题吗

Logs

Click me to check logs

2024-04-10 19:12:50	INFO	logger/logging.go:42	URL specified explicitly tri://127.0.0.1:20000
2024-04-10 19:12:50	INFO	logger/logging.go:42	[TRIPLE Protocol] Refer service: tri://127.0.0.1:20000/greet.GreetService?app.version=&application=dubbo.io&async=false&bean.name=greet.GreetService&cluster=failover&config.tracing=&environment=&generic=&group=&interface=greet.GreetService&loadbalance=&metadata-type=local&module=sample&name=dubbo.io&organization=dubbo-go&owner=dubbo-go&peer=true&provided-by=&reference.filter=cshutdown&registry.role=0&release=dubbo-golang-3.2.0&remote.timestamp=&retries=&serialization=protobuf&side=consumer&sticky=false&timestamp=1712747570&version=
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