首先,你需要在Cargo.toml文件中添加Serde库的依赖: [dependencies] serde = { version = "1.0", features = ["derive"] } serde_json = "1.0" 复制代码 接下来,我们创建一个简单的Rust结构体来表示JSON数据: use serde::{Deserialize, Serialize}; #[derive(Serialize, Deserialize, Debug)] struct Perso...
#[derive(Serialize, Deserialize)] struct Message { action: Action, } Run Code Online (Sandbox Code Playgroud) 我传递了一个 JSON 字符串:"{\"action\":0}" // `json_string` var Run Code Online (Sandbox Code Playgroud) 但是当我尝试像这样反序列化时:let msg: Message = serde_json::...
use serde::{Serialize, Deserialize}; #[derive(Serialize, Deserialize, Debug)] struct Point { x: i32, y: i32, } fn main() { let point = Point {x: 1, y: 2}; let json: String = serde_json::to_string(&point).unwrap(); println!("{}", json); let point: Point = serde_jso...
use serde::{Serialize, Deserialize}; #[derive(Serialize, Deserialize, Debug)] struct Point { x: i32, y: i32, } fn test(s: &str) { let p: Point = serde_json::from_str(s).unwrap(); println!("{:?}", p); } fn main() { test("{\"x\":0,\"y\":3}"); test("{\"x...
use serde::{Serialize, Deserialize}; #[derive(Serialize, Deserialize)] struct CustomMap(HashMap<i32, String>); 使用serde_json库将CustomMap结构体序列化为JSON字符串: 代码语言:txt 复制 use serde_json; fn main() { let custom_map = CustomMap(map); let json_string = serde_json::to_s...
为了仅为serde_json实现自定义序列化,你需要实现serde的Serialize和Deserialize trait。下面是一个示例: 代码语言:txt 复制 use serde::{Serialize, Deserialize}; #[derive(Serialize, Deserialize)] struct Person { name: String, age: u32, } impl Serialize for Person { ...
} Cargo.toml [package]edition="2021"name="game"version="0.1.0"[dependencies]serde= {version ="1.0.130", features = ["derive"]}serde_json="1.0.72" 总结 使用serde 将一个字符串转为 Value 对象,并且从里面获取了想要的值。 附录
};letjson= serde_json::to_string(&person).unwrap();println!("{}", json); } Cargo.toml [package]edition="2021"name="game"version="0.1.0"[dependencies]serde= {version ="1.0.130", features = ["derive"]}serde_json="1.0.72" ...
crate serde_derive; use chrono::NaiveDateTime; use postgres::{Client, NoTls}; use serde_json::Value; use std::collections::HashMap as Map; fn main() { let conn_str = "host=localhost user=postgres password=yourpassword dbname=yourdbname"...
#[derive(Serialize, Deserialize)] struct User { name: String, age: u8, is_active: bool, } fn main() { let user = User { name: "Alice".to_string(), age: 30, is_active: true, }; // 序列化 let serialized = serde_json::to_string(&user).unwrap(); ...