使用Socket Java NIO连接到gRPC服务器但服务器没有响应

Question

我的gRPC Java客户端连接到带有套接字和NIO的服务器Java NIO请求的客户端到服务器gRPC但服务器没有响应。

我的客户gRPC代码：

        private final  ManagedChannel channel;
        private final  MyServiceProviderGrpc.MyServiceProviderBlockingStub blockingStub;
        private final  MyServiceProviderGrpc.MyServiceProviderStub asyncStub;

        public ClientGrpc(String host, int port) 
        {
            this(ManagedChannelBuilder.forAddress(host, port).usePlaintext(true));
        }
        ClientGrpc(ManagedChannelBuilder<?> channelBuilder) 
        {
            channel = channelBuilder.build();
            blockingStub = MyServiceProviderGrpc.newBlockingStub(channel);
            asyncStub = MyServiceProviderGrpc.newStub(channel);         }

        public void greet(String name)          {
            logger.info("Will try to greet " + name + " ...");
            TemperatureRequest request = TemperatureRequest.newBuilder().setQuestion(name).build();
            TemperatureResponse response;
            try 
            {
              response = blockingStub.getTemperature(request);
            } catch (StatusRuntimeException e) 
            {
              logger.info("RPC failed: {0}"+ e.getStatus());
              return;
            }
            logger.info("Greeting: " + response.getAnswer());       }


ClientGrpc clients = new ClientGrpc("localhost",4321);
clients.greet("bap");

我在NIO收到一条消息：

  

PRI * HTTP / 2.0

     

SM