$ cargo new json_data --bin
vagrant@ubuntu-14:~/tmp/test/rustprimer$ tree
.
`-- json_data
|-- Cargo.toml
`-- src
`-- main.rs
[package]
name = "json_data"
version = "0.1.0"
authors = ["wangxxx <xxxxx@qq.com>"]
[dependencies]
[package]
name = "json_data"
version = "0.1.0"
authors = ["wangxxx <xxxxx@qq.com>"]
[dependencies]
rustc-serialize = "0.3.18"
[registry]
index = "git://crates.mirrors.ustc.edu.cn/index"
Updating registry `git://crates.mirrors.ustc.edu.cn/index`
Downloading rustc-serialize v0.3.18 (registry git://crates.mirrors.ustc.edu.cn/index)
Compiling rustc-serialize v0.3.18 (registry git://crates.mirrors.ustc.edu.cn/index)
Compiling json_data v0.1.0 (file:///home/vagrant/tmp/test/rustprimer/json_data)
.
|-- Cargo.lock
|-- Cargo.toml
|-- src
| `-- main.rs
`-- target
`-- debug
|-- build
|-- deps
| `-- librustc_serialize-d27006e102b906b6.rlib
|-- examples
|-- json_data
`-- native
[root]
name = "json_data"
version = "0.1.0"
dependencies = [
"rustc-serialize 0.3.18 (registry+git://crates.mirrors.ustc.edu.cn/index)",
]
[[package]]
name = "rustc-serialize"
version = "0.3.18"
source = "registry+git://crates.mirrors.ustc.edu.cn/index"
$ cargo run
Hello, world!
extern crate rustc_serialize;
// 引入rustc_serialize模块
use rustc_serialize::json;
// Automatically generate `RustcDecodable` and `RustcEncodable` trait
// implementations
// 定义TestStruct
#[derive(RustcDecodable, RustcEncodable)]
pub struct TestStruct {
data_int: u8,
data_str: String,
data_vector: Vec<u8>,
}
fn main() {
// 初始化TestStruct
let object = TestStruct {
data_int: 1,
data_str: "homura".to_string(),
data_vector: vec![2,3,4,5],
};
// Serialize using `json::encode`
// 将TestStruct转意为字符串
let encoded = json::encode(&object).unwrap();
println!("{}",encoded);
// Deserialize using `json::decode`
// 将json字符串中的数据转化成TestStruct对应的数据,相当于初始化
let decoded: TestStruct = json::decode(&encoded).unwrap();
println!("{:?}",decoded.data_vector);
}