`rocket::form::Form<ContentsRequest>`没有实现“`FromSegments<‘_>”的特性

Question

当我在锈菌rocket = { version = "=0.5.0-rc.2", features = ["json"] }中添加表单请求时，如下所示：

#[get("/page/<path..>")]
fn get_page(path: Form<ContentsRequest>) {  }

编译器显示的错误如下：

error[E0277]: the trait bound `rocket::form::Form<ContentsRequest>: FromSegments<'_>` is not satisfied
  --> src/main.rs:21:19
   |
21 | fn get_page(path: Form<ContentsRequest>) {  }
   |                   ^^^^ the trait `FromSegments<'_>` is not implemented for `rocket::form::Form<ContentsRequest>`

为什么会发生这种事？我该怎么做才能修好它？这是完整的main.rs代码：

#[macro_use] extern crate rocket;

use rocket::form::Form;
use rocket_okapi::{mount_endpoints_and_merged_docs, rapidoc::*, swagger_ui::*};
use rocket_okapi::settings::UrlObject;
use rocket::serde::Deserialize;
use rocket::serde::Serialize;


#[launch]
fn rocket() -> _ {
    rocket::build().mount("/", routes![get_page])
}


#[get("/page/<path..>")]
fn get_page(path: Form<ContentsRequest>) {  }


use rocket_okapi::okapi::schemars::JsonSchema;
use rocket_okapi::okapi::schemars;

#[derive(Debug, PartialEq, Eq, Deserialize, Serialize, FromForm, JsonSchema)]
#[allow(non_snake_case)]
pub struct ContentsRequest {
    /// The contents_type
    contents_type: i32
}

这是Cargo.toml依赖关系：

[package]
name = "rust-demo"
version = "0.1.0"
edition = "2018"

[dependencies]
rocket = { version = "=0.5.0-rc.2", features = ["json"] }

okapi = { git = "https://github.com/GREsau/okapi.git"}
schemars = "0.7"
rocket_okapi = { git = "https://github.com/GREsau/okapi.git", features = ["swagger", "rapidoc"] }


serde = { version = "1.0.64", features = ["derive"] }
serde_json = "1.0.64"
serde_derive = "1.0"
# database
diesel = { version = "1.4.7", features = ["postgres","serde_json"] }
dotenv = "0.15.0"
jsonwebtoken = "7"
chrono = "0.4"
config = "0.11"
ring = "0.16.20"
md5 = "0.7.0"
data-encoding = "2.3.2"

Answer 1

匹配尾随查询参数的语法是?之前的<name..>。您也不需要在Form<_>中包装该类型

#[get("/page?<path..>")]
fn get_page(path: ContentsRequest) {}

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