c# - NetworkStream.Read() 不起作用并抛出 ArgumentOutOfRangeException

Question

只是想创建一个聊天服务器客户端

1. 这是等待客户端连接的服务器(可选)*

       TcpListener serverSocket = new TcpListener(8888);
       int requestCount = 0;
       TcpClient clientSocket = default(TcpClient);
       serverSocket.Start();
       Console.WriteLine(" >> Server Started");
       clientSocket = serverSocket.AcceptTcpClient();
       Console.WriteLine(" >> Accept connection from client");
   

2. 然后，客户端连接到服务器(可选)*

       System.Net.Sockets.TcpClient clientSocket = new System.Net.Sockets.TcpClient();
       clientSocket.Connect("127.0.0.1", 8888);
   

3. 然后，在客户端，我从 Windows 窗体发送消息，按钮单击事件执行此操作:

   NetworkStream serverStream = clientSocket.GetStream();
   byte[] outStream = System.Text.Encoding.ASCII.GetBytes(textBox2.Text + "$");
   serverStream.Write(outStream, 0, outStream.Length);
   serverStream.Flush();
   //this goes to the server  ------> to the part (4)
   
   //returning from the server <------
   byte[] inStream = new byte[10025];
   serverStream.Read(inStream, 0, (int)clientSocket.ReceiveBufferSize);
   string returndata = System.Text.Encoding.ASCII.GetString(inStream);
   textBox2.Text = "";
   textBox2.Focus();
   

4. 最后，在服务器端，客户端请求的无限循环。这是我在 networkStream.Read() 上遇到问题的地方

   while ((true))
       {
           try
           {
               requestCount = requestCount + 1;
               NetworkStream networkStream = clientSocket.GetStream();
               byte[] bytesFrom = new byte[10025];
               if (networkStream.DataAvailable)
               {
                   **networkStream.Read(bytesFrom, 0, (int) clientSocket.ReceiveBufferSize);**
                   string dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
                   dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$"));
                   Console.WriteLine(" >> Data from client - " + dataFromClient);
                   string serverResponse = "Last Message from client" + dataFromClient;
                   Byte[] sendBytes = Encoding.ASCII.GetBytes(serverResponse);
                   networkStream.Write(sendBytes, 0, sendBytes.Length);
                   networkStream.Flush();
                   Console.WriteLine(" >> " + serverResponse);
               }
           }
           catch (Exception ex)
           {
               Console.WriteLine(ex.ToString());
           }
       }
   

我逐步调试(在服务器和客户端上)，一切正常，直到我进入 networkStream.Read() 方法，并抛出 ArgumentOutOfRangeException...拜托，任何人帮助我或告诉我错误在哪里。

*我说可选是因为 1. 和 2. 步骤很好(至少，我认为)

Answer 1

来自MSDN , ArgumentOutOfRangeException 表示 offset 或 count 为负数(第 2 个和第 3 个参数)，或者“size(count)”参数大于 buffer 的长度减去“偏移量”参数。

我会尝试传递 bytesFrom.Length 而不是 clientSocket.ReceiveBufferSize。