【Serde】JSON 转 Value

环境

• Time 2021-12-02
• VSCode 1.61.2
• Rust 1.56.1
• Serde 1.0.72

概念

参考：https://docs.serde.rs/serde_json/index.html#serde-json

示例

Cargo.toml

[package]
edition = "2021"
name = "game"
version = "0.1.0"

[dependencies]
serde_json = "1.0.72"

main.rs

use serde_json::Value;

fn main() {
    let data = r#"
    {
        "name": "JiangBo",
        "age": 44,
        "languages": [
            "Rust",
            "Java"
        ]
    }"#;

    let value: Value = serde_json::from_str(data).unwrap();
    println!(
        "{}, {} years old, like {}",
        value["name"], value["age"], value["languages"][0]
    );
}

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