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🌈 Introduction

我们使用 TCP 通信的时候,由于TCP是面向流的,因此需要对流进行解析。也就是所谓的拆包,把流解析为一段段我们所需要的数据。本方案为 Node.Js 实现的一个处理方案。

对要发送的数据按协议编码,把数据 data 分为 header +body 两部分,header 默认固定长度(2 byte),header描述的是 body 数据的长度。由于header定长,因此可以通过header,解析出 body 的内容。

默认 header 我们使用 2 Byte 的存储空间,即Int16最大表示的 body 长度为 32767,也就是16M

Schematic

如上图,我们看先取出数据流的前两位,读取到内容 0x00, 0x02转化为整数的长度是 2,再读取出body第3、4位 0x61, 0x62

Links

🌈 Install

👀 Getting Started

😊 API Reference

😸 Examples

🌍 Solve the problem of "sticking packets" for TCP network transmission (Classic)

Other Language

现实场景中客户端是其他语言编写的比如C语言运行在单片机上,这时候大家可以基原理图自行打包,规则所示:

data = header(body.length) + body

MIT

stick's People

Contributors

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