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我有两个 Windows 应用程序并使用命名管道在它们之间发送和接收数据列表。通过使用 BinaryFormatter 类的序列化/反序列化机制。

服务器:

  static void StartServer()
    {
        var server = new NamedPipeServerStream("PipesEnroll", PipeDirection.InOut);

            while (true)
            {
                StreamReader reader = new StreamReader(server);
                StreamWriter writer = new StreamWriter(server);
                string terminalTemplate;
                string matcherTemplate;
                int mathVersionNumber = 9;
                int numberFingers;
                BinaryFormatter formatterDeserialize = new BinaryFormatter();
                List<byte[]> retrievedList = (List<byte[]>)formatterDeserialize.Deserialize(reader.BaseStream);
                bool isOk = Enroll.EnrollWithoutWCF(retrievedList, mathVersionNumber, out terminalTemplate, out matcherTemplate, out numberFingers);
                List<String> sendList = new List<string>();
                sendList.Add(isOk.ToString());
                sendList.Add(terminalTemplate);
                sendList.Add(matcherTemplate);
                sendList.Add(numberFingers.ToString());
                BinaryFormatter formatterSerialize = new BinaryFormatter();
                formatterSerialize.Serialize(writer.BaseStream, sendList);
                server.Disconnect();
       }

客户:

                    using (var client = new NamedPipeClientStream(".", "PipesEnroll", PipeDirection.InOut))
                        {
                            client.Connect();
                            StreamReader reader = new StreamReader(client);
                            StreamWriter writer = new StreamWriter(client);

                                BinaryFormatter formatterSerialize = new BinaryFormatter();
                                formatterSerialize.Serialize(writer.BaseStream, images);
                                // writer.Write(stream);
                                // writer.Flush();
                                BinaryFormatter formatterDeserialize = new BinaryFormatter();
                                List<String> retrievedList = (List<String>)formatterDeserialize.Deserialize(reader.BaseStream);
                                bool isOK = Convert.ToBoolean(retrievedList[0]);
                                string terminalTemplate = retrievedList[1];
                                string matcherTemplate = retrievedList[2];
                                int numberFingers = Convert.ToInt32(retrievedList[3]);

}

但是执行 formatterSerialize.Serialize(writer.BaseStream, images); 时客户端出现异常“System.IO.Exception:Pipe is broken”;在调试模式。

有人对如何避免这个问题有任何建议吗?

4

1 回答 1

1

StreamWriter 属于 NamedPipeClientStream。如果 NamedPipeClientStream 被处置,则其过程的一部分也正在处置 StreamWriter。如果由于任何原因 StreamWriter 在代码的任何其他部分被关闭/处置,结果将是管道被破坏。

1) 检查 formatterSerialize.Serialize 是否没有关闭 StreamWriter。

2) 还要确保在退出使用 NamedPipeClientStream 之前刷新 StreamWriter。

于 2016-01-17T16:53:39.457 回答