Skip to main content

Request

Struct Request 

Source
pub struct Request {
    pub url: String,
    pub method: String,
    pub headers: HashMap<String, String>,
    pub allow_revisit: bool,
    pub context: HashMap<String, String>,
    pub body: Vec<u8>,
    pub aborted: bool,
}
Expand description

爬虫请求封装

每次访问都会构造一个 Request,经过回调链后交给 HttpClient 执行。

Fields§

§url: String

目标 URL

§method: String

HTTP 方法

§headers: HashMap<String, String>

自定义请求头

§allow_revisit: bool

是否允许重复访问(跳过 visited 去重检查)

§context: HashMap<String, String>

用户自定义上下文,可在回调间传递数据

§body: Vec<u8>

POST 请求体

§aborted: bool

是否已被回调中止(调用 abort() 后为 true)

Implementations§

Source§

impl Request

Source

pub fn get(url: &str) -> Self

创建 GET 请求

Source

pub fn post(url: &str, body: Vec<u8>) -> Self

创建 POST 请求

Source

pub fn header(self, key: &str, value: &str) -> Self

设置请求头

Source

pub fn set_context(self, key: &str, value: &str) -> Self

写入上下文键值对(回调间传递数据用)

Source

pub fn abort(&mut self)

中止当前请求处理

on_request 回调中调用,后续的 HTTP 请求和所有回调(on_response / on_html / on_scraped)都不会执行。

Trait Implementations§

Source§

impl Clone for Request

Source§

fn clone(&self) -> Request

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl Debug for Request

Source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.