比较通过NetworkStream发送到/从服务器的值 [英] comparing values sent to/from server by NetworkStream

问题描述

当你知道为什么发送的字符串kamote到服务器和从服务器收到的kamote不一样..

When u know why the sent string "kamote" to server and the string received "kamote" from server are not the same..

客户端

    tcpClient = new TcpClient();
    tcpClient.Connect(ServerIP, Port);
    connectionState = (HandShake("kamote", tcpClient)) ? "Connected to " + ServerIP.ToString() : "Host unreachable.";

    private bool HandShake(String str, TcpClient tcpClient)
    {
        using (NetworkStream ns = tcpClient.GetStream())
        {
            byte[] toServer = Encoding.ASCII.GetBytes(str);
            ns.Write(toServer,0,toServer.Length);                
            ns.Flush();

            byte[] fromServer = new byte[10025];
            ns.Read(fromServer, 0, (int)tcpClient.ReceiveBufferSize);

            return Encoding.ASCII.GetString(fromServer).Equals(str);
        }
    }

SERVER

    TcpClient tcpClient = new TcpClient();
    tcpClient = tcpListener.AcceptTcpClient();

    NetworkStream ns = tcpClient.GetStream();

    byte[] fromClient = new byte[10025];
    ns.Read(fromClient, 0, (int)tcpClient.ReceiveBufferSize);

    byte[] toClient = fromClient;
    ns.Write(toClient, 0, toClient.Length);            
    ns.Flush();       

客户端发送kamote

服务器收到kamote

服务器发送kamote

客户端收到kamote

Client sent "kamote"
Server received "kamote"
Server sent "kamote"
Client received "kamote"

HandShake（）总是返回false。如何解决这个问题？

HandShake() always returns false. How can I fix this?

推荐答案

与前面提到的问题一样，你没有跟踪字节数你收到。所以发生的是这样的：

As in the previous question you asked, you're not keeping track of the number of bytes you received. So what's happening is this:

• 在客户端上，您发送字符串kamote。


• 在服务器上，它将该字符串接收到长度为10025字节的缓冲区。


• 服务器然后将整个缓冲区发送回客户端 - 所有10025字节


• 客户端接收全部或部分10025个字节并将其转换为字符串。

• On the client, you send the string "kamote".
• On the server, it receives that string into a buffer that's 10025 bytes long.
• The server then sends the entire buffer back to the client -- all 10025 bytes
• The client receives all or part of those 10025 bytes and converts them to a string.

转换的字符串真的是kamote，后面有一堆0。

The string that gets converted is really "kamote" with a bunch of 0's after it.

你必须使用中的返回值读取来知道你收到的字节数。

You must use the return value from Read to know how many bytes you received.

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