我将尝试使用
serde_json
在 Rust 中将 JSON 对象解析为 HashMap。但是,使用以下代码时,我会收到错误提示:error[E0507]: cannot move out of index of `Value`
我该如何将那个Value
放入我的HashMap中呢?
use serde_json::{Result, Value};
use std::collections::HashMap;
fn main() {
let variables_json = r#"{
"awayTeamAbbrev": "DAL",
"homeTeamAbbrev": "TB",
"gameInstanceUid": "cbs-nfl-pickem-challenge",
"sportType": "NFL",
"weekNumber": 1
}"#;
let keys = vec!["sportType","weekNumber"];
dbg!(json_to_hashmap(&variables_json, keys));
}
fn json_to_hashmap(json: &str, keys: Vec<&str>) -> Result<HashMap<String, Value>> {
let lookup: Value = serde_json::from_str(json).unwrap();
let mut map = HashMap::new();
for key in keys {
let varname = key.to_owned();
let value = lookup[&varname];
map.insert(varname, value);
}
Ok(map)
}
let value = lookup[&varname].clone();
来创建一个值的克隆,以避免移动。 - Joe_Jingyu