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ActivatedRoute

Provides access to information about a route associated with a component that is loaded in an outlet. Use to traverse the RouterState tree and extract information from nodes.

查看"说明"...

      
      interface ActivatedRoute {
  snapshot: ActivatedRouteSnapshot
  url: Observable<UrlSegment[]>
  params: Observable<Params>
  queryParams: Observable<Params>
  fragment: Observable<string>
  data: Observable<Data>
  outlet: string
  component: Type<any> | string | null
  routeConfig: Route | null
  root: ActivatedRoute
  parent: ActivatedRoute | null
  firstChild: ActivatedRoute | null
  children: ActivatedRoute[]
  pathFromRoot: ActivatedRoute[]
  paramMap: Observable<ParamMap>
  queryParamMap: Observable<ParamMap>
  toString(): string
}
    

参见

说明

The following example shows how to construct a component using information from a currently activated route.

import {Component} from '@angular/core'; /* . . . */ import {ActivatedRoute} from '@angular/router'; import {Observable} from 'rxjs'; import {map} from 'rxjs/operators'; /* . . . */ @Component({ /* . . . */ }) export class ActivatedRouteComponent { constructor(route: ActivatedRoute) { const id: Observable<string> = route.params.pipe(map(p => p.id)); const url: Observable<string> = route.url.pipe(map(segments => segments.join(''))); // route.data includes both `data` and `resolve` const user = route.data.pipe(map(d => d.user)); } }
activated-route.component.ts
      
      import {Component} from '@angular/core';
/* . . . */
import {ActivatedRoute} from '@angular/router';
import {Observable} from 'rxjs';
import {map} from 'rxjs/operators';
/* . . . */

@Component({
/* . . . */
})
export class ActivatedRouteComponent {
  constructor(route: ActivatedRoute) {
    const id: Observable<string> = route.params.pipe(map(p => p.id));
    const url: Observable<string> = route.url.pipe(map(segments => segments.join('')));
    // route.data includes both `data` and `resolve`
    const user = route.data.pipe(map(d => d.user));
  }
}
    

属性

属性说明
snapshot: ActivatedRouteSnapshot

本路由此刻的快照

The current snapshot of this route

url: Observable<UrlSegment[]>

一个 Observable,表示与当前路由匹配的 URL 段。

An observable of the URL segments matched by this route.

params: Observable<Params>

一个 Observable,表示当前路由范围内的矩阵参数(;)。

An observable of the matrix parameters scoped to this route.

queryParams: Observable<Params>

一个 Observable,表示所有路由共享的查询参数(?)。

An observable of the query parameters shared by all the routes.

fragment: Observable<string>

一个 Observable,表示由所有路由共享的 URL 片段(#)。

An observable of the URL fragment shared by all the routes.

data: Observable<Data>

一个 Observable,表示该路由的静态数据和解析出的数据。

An observable of the static and resolved data of this route.

outlet: string

本路由对应的出口名,是个常量

The outlet name of the route. It's a constant

component: Type<any> | string | null

本路由对应的组件,是个常量

The component of the route. It's a constant

routeConfig: Route | null只读

用于匹配本路由的配置项。

The configuration used to match this route.

root: ActivatedRoute只读

路由器状态树的根节点。

The root of the router state.

parent: ActivatedRoute | null只读

在路由器状态树中,当前路由的父路由。

The parent of this route in the router state tree.

firstChild: ActivatedRoute | null只读

在路由器状态树中,当前路由的第一个子路由。

The first child of this route in the router state tree.

children: ActivatedRoute[]只读

在路由器状态树中,当前路由的所有子路由。

The children of this route in the router state tree.

pathFromRoot: ActivatedRoute[]只读

在路由器状态树中从根节点开始到当前路由的完整路径。

The path from the root of the router state tree to this route.

paramMap: Observable<ParamMap>只读

An Observable that contains a map of the required and optional parameters specific to the route. The map supports retrieving single and multiple values from the same parameter.

queryParamMap: Observable<ParamMap>只读

An Observable that contains a map of the query parameters available to all routes. The map supports retrieving single and multiple values from the query parameter.

方法

toString(): string
      
      toString(): string
    
参数

没有参数。

返回值

string