怎么直接提取请求头的参数？

[Xiaobaishushu25]

文档示例是：

#[handler]
fn get_user_from_header(user_id: HeaderParam<i64,true>) -> String {
    format!("从请求头中获取的用户ID: {}", user_id.into_inner())
}

这种只能指定数字或者字符串之类的类型的吗，如果我想要获取请求头里面的authorization，有什么类似springboot中的：

@GetMapping("/webSite")
public String webSite(@RequestHeader("webSite")String webSite) {
 return "The webSite is " + webSite;
}

这种直接获取某个字段的值的方法吗，我目前只能手动提取：

#[handler]
pub async fn validate_token(req: &Request)->JsonResult<bool>{
    if let Some(token) = req.headers().get("authorization").and_then(|c| c.to_str().ok()).map(|s| s.trim_start_matches("Bearer ")){
        if decode_token(token){
            return Ok(Json(true));
        }
    }
    Ok(Json(false))
}

[chrislearn]

https://docs.rs/salvo_core/latest/salvo_core/http/request/struct.Request.html#method.header
或者 https://docs.rs/salvo_core/latest/salvo_core/http/request/struct.Request.html#method.try_header

[Xiaobaishushu25]

https://docs.rs/salvo_core/latest/salvo_core/http/request/struct.Request.html#method.header 或者 https://docs.rs/salvo_core/latest/salvo_core/http/request/struct.Request.html#method.try_header

这样吗，感觉和req.headers().get("authorization")没啥区别啊。

#[handler]
pub async fn validate_token(req: &Request)->JsonResult<bool>{
    let option = req.header::<String>("authorization");
}

能不能直接在函数参数里面解析到。

[chrislearn]

https://docs.rs/salvo-oapi/0.77.1/salvo_oapi/extract/struct.HeaderParam.html

[chrislearn]

如果你从多个地方比如header, querystring 等解析参数，还可以直接解析为一个结构体。

https://github.com/salvo-rs/salvo/blob/main/examples/extract-nested/src/main.rs