环境
- Time 2022-12-11
- WSL-Ubuntu 22.04
- tonic 0.8
前言
说明
参考：https://github.com/hyperium/tonic/tree/master/examples/src/helloworld
目标
使用 tonic 来处理 protobuf 编码和解码。
user.proto 文件
syntax = "proto3";
package user;
// 用户
message User{uint64 id = 1; // 编号string name = 2; // 用户名uint32 age = 3; // 年龄
}
Cargo.toml
[package]
edition = "2021"
name = "game"
version = "1.0.0"[dependencies]
prost = "0.11"
tonic = "0.8"[build-dependencies]
tonic-build = "0.8"
build.rs
use std::io::Result;fn main() -> Result<()> {tonic_build::configure().out_dir("src/proto")// 处理 clippy 警告的问题.type_attribute(".", "#[derive(Eq)]").compile(&["proto/user.proto"], &["proto/"])?;Ok(())
}
mod.rs
mod user;pub use user::*;
user.rs
/// 用户
#[derive(Eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct User {/// 编号#[prost(uint64, tag = "1")]pub id: u64,/// 用户名#[prost(string, tag = "2")]pub name: ::prost::alloc::string::String,/// 年龄#[prost(uint32, tag = "3")]pub age: u32,
}
main.rs
use prost::Message;mod proto;fn main() -> std::io::Result<()> {let user = proto::User {id: 1,name: "JiangBo".to_string(),age: 44,};let encode = user.encode_to_vec();let user = proto::User::decode(encode.as_ref())?;dbg!(user);Ok(())
}
运行结果
[src/main.rs:14] user = User {id: 1,name: "JiangBo",age: 44,
}
总结
使用 tonic 来进行编码和解码的处理。