Websockets 将 byte[] 转换为字符串

Question

我有以下代码：

            Console.WriteLine("New Socket connection opened");
            var buffer = new byte[1024 * 4];
            WebSocketReceiveResult result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
            while (!result.CloseStatus.HasValue)
            {
                Console.WriteLine("New message received : "+ Encoding.UTF8.GetString(buffer));
            }

当我发送 Hello 我的客户端时，我可以在控制台上看到 Hello?????????????。显然，这意味着我有一个大小为 1024 * 4 的缓冲区，其中前几个字节被 Hello 占用。我如何 trim 我的字符串（最终，我想将 JSON 从我的客户端传递到服务器）。

Answer 1

基本上John回答了这个

WebSocketReceiveResult.Count Property

Indicates the number of bytes that the WebSocket received.

Count can be 0 in two cases:

The WebSocket received an empty message. In this case the CloseStatus property is None.

The WebSocket received a close message from the remote endpoint. In this case, the CloseStatus property is set to a value other than None.

GetString(Byte[], Int32, Int32)

public virtual string GetString (byte[] bytes, int index, int count);

When overridden in a derived class, decodes a sequence of bytes from the specified byte array into a string.

bytes Byte[] The byte array containing the sequence of bytes to decode.

index Int32 The index of the first byte to decode.

count Int32 The number of bytes to decode.

所以你需要这样的东西

Console.WriteLine("New message received : "+ Encoding.UTF8.GetString(buffer,0,Result.Count));

不过，还是个大不过。还有更多错误，我会认真地建议获得一个好的 WebSocket 教程和一些防弹（典型）设计

Websockets 将 byte[] 转换为字符串

Websockets convert byte[] to string

.net

c#

arrays

buffer

websocket