C# TCP 侦听器崩溃

Question

多次（随机）发送消息时，TCP 侦听器崩溃，并抛出此异常，有解决方案吗？

例外情况：

System.IO.IOException: Unable to read data from the transport connection: An 
established connection was aborted by the software in your host machine. ---
> System.Net.Sockets.SocketException: An established connection was aborted 
by the software in your host machine

at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 
size, SocketFlags socketFlags)
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 
size)
--- End of inner exception stack trace ---
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 
size)

这是我的 TCP 侦听器代码（标记了抛出异常的错误行）：

static string serverstatus = "0";

try
{

server.Start();

Byte[] bytes = new Byte[256];
String data = null;

while (true)
{
    TcpClient client = server.AcceptTcpClient();

    data = null;

    NetworkStream stream = client.GetStream();

    int i;

    //THROW THE ERROR
    while ((i = stream.Read(bytes, 0, bytes.Length)) > 0)
    {
        data = System.Text.Encoding.UTF8.GetString(bytes, 0, i);
        if (data != "0" && data != serverstatus)
        {
             serverstatus = data;
             Console.WriteLine("Current Status is: " + serverstatus);
        }

data = serverstatus.ToUpper();

byte[] msg = System.Text.Encoding.ASCII.GetBytes(serverstatus);

stream.Write(msg, 0, msg.Length);
Console.WriteLine("Server Sending Back: {0}", serverstatus);
         }
    }
}
catch (Exception _ex)
{
     Console.WriteLine(_ex.ToString());
     Console.ReadKey();
}

Answer 1

.NET API 通过您在此处遇到的异常公开关闭或失败的连接。您需要处理异常（关闭流、清理事物等）并继续处理下一个客户端。

顺便说一句：

stream.Read(bytes, 0, bytes.Length) 不会准确读取 bytes.Length 字节，而是 1 到 bytes.Length 字节之间的任何内容。如果您恰好需要那么多字节，则需要在循环中调用它。

如果 serverStatus 不完全是 bytes.Length 字节，协议也会丢失一些帧信息，因为客户端可能不知道在尝试将数据解码为留言。

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