@Override
    public void sayHello(HelloRequest req, StreamObserver<HelloReply> responseObserver) {
        HelloReply reply = HelloReply.newBuilder().setMessage("Hello ==> " + req.getName()).build();
        responseObserver.onNext(reply);
        responseObserver.onCompleted();
    }
@author Michael (yidongnan@gmail.com)
@since 2016/11/8
examples/local-grpc-server/src/main/java/net/devh/boot/grpc/examples/local/server/GrpcServerService.java