字符缺失

发布于 2024-11-04 15:58:07 字数 494 浏览 0 评论 0原文

我正在尝试向远程设备发送 JSON 请求，然后该设备返回 JSON 响应。

我使用的代码是这样的：

TcpClient client = new TcpClient();
client.Connect(IPAddress.Parse("someip"), someport);
NetworkStream stream = client.GetStream();
byte[] myWriteBuffer = Encoding.ASCII.GetBytes("some JSON");
stream.Write(myWriteBuffer, 0, myWriteBuffer.Length);
BinaryReader r = new BinaryReader(stream);
Console.WriteLine(r.ReadString())

此代码成功发送 JSON 字符串，接收响应，但该响应仅显示 123 个字符，这意味着它剪切了一些字符......

我做错了什么

原文

I'm trying to send a JSON request to a remote device that then returns a JSON response.

The code I've used is this:

TcpClient client = new TcpClient();
client.Connect(IPAddress.Parse("someip"), someport);
NetworkStream stream = client.GetStream();
byte[] myWriteBuffer = Encoding.ASCII.GetBytes("some JSON");
stream.Write(myWriteBuffer, 0, myWriteBuffer.Length);
BinaryReader r = new BinaryReader(stream);
Console.WriteLine(r.ReadString())

This code successfully sends the JSON string, receives the response, but that response only shows 123 characters, meaning that it cuts some chars...

What am I doing wrong

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尐偏执 2024-11-11 15:58:07

BinaryReader / BinaryWriter 不一定是写入任意流的正确工具；特别是，他们选择一种带有长度前缀的特定字符串编码方式。如果这不是您的远程设备所期望的，它将失败。

我将直接使用 Stream 以及 Read 和 Write。

特别是，{ 的 ASCII 值是 123，因此看起来 BinaryReader 错误地从 JSON 左大括号中获取了“长度”。

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街角卖回忆 2024-11-11 15:58:07

可能是编码/解码问题，我会像这样更改你的代码

TcpClient client = new TcpClient();
client.Connect(IPAddress.Parse("someip"), someport);
NetworkStream stream = client.GetStream();
byte[] myWriteBuffer = Encoding.ASCII.GetBytes("some JSON");
stream.Write(myWriteBuffer, 0, myWriteBuffer.Length);

byte[] readBuffer = stream.GetBuffer();
Console.WriteLine(Encoding.ASCII.GetString(bytes));

Probably an encoding/decoding issue, I would change your code like so

TcpClient client = new TcpClient();
client.Connect(IPAddress.Parse("someip"), someport);
NetworkStream stream = client.GetStream();
byte[] myWriteBuffer = Encoding.ASCII.GetBytes("some JSON");
stream.Write(myWriteBuffer, 0, myWriteBuffer.Length);

byte[] readBuffer = stream.GetBuffer();
Console.WriteLine(Encoding.ASCII.GetString(bytes));

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