Enum CrawlError 

pub enum CrawlError {
    Http(String),
    Url(ParseError),
    Html(String),
    Callback(String),
    Io(Error),
    Selector {
        selector: String,
        message: String,
    },
    Readability(String),
    Config(String),
    AllFetchersFailed(String),
    Lock(String),
}

框架统一错误类型

覆盖 HTTP 请求、URL 解析、HTML 解析、回调执行等场景。

Variants

Http(String)

HTTP 请求失败

Url(ParseError)

URL 解析失败

Html(String)

HTML 解析失败

Callback(String)

回调执行错误

Io(Error)

IO 错误

Selector

CSS 选择器解析错误

Fields

selector: String

message: String

Readability(String)

可读性提取错误

Config(String)

配置错误

AllFetchersFailed(String)

所有请求器均失败

Lock(String)

锁中毒

Trait Implementations

impl Debug for CrawlError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CrawlError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for CrawlError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for CrawlError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<ParseError> for CrawlError

fn from(source: ParseError) -> Self

Converts to this type from the input type.