我正在寻找在我的AppComponent中检测路由变化。
然后,我将检查全局用户令牌,以查看用户是否已登录,以便在用户未登录时重定向该用户。
我正在寻找在我的AppComponent中检测路由变化。
然后,我将检查全局用户令牌,以查看用户是否已登录,以便在用户未登录时重定向该用户。
当前回答
如果您只是想检查路由/查询参数更改,如localhost:4200/users/1?编辑=1到localhost:4200/users/2?Edit =0你可以像下面这样使用可观察的参数。
import { ActivatedRoute, Params } from '@angular/router';
export class SomeClass implements OnInit {
paramFromRoute;
constructor(private route: ActivatedRoute) { }
ngOnInit() {
this.paramFromRoute = this.route.snapshot.params['paramName']; // this one is required for getting it first time
this.route.params.subscribe((params:Params)=>{
this.paramFromRoute = params['paramName'] // whenever route is changed, this function will triggered.
});
// for queryParams you can subscribe to this.route.queryParams
}
}
其他回答
位置的作品……
import {Component, OnInit} from '@angular/core';
import {Location} from '@angular/common';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss']
})
export class AppComponent implements OnInit {
constructor(private location: Location) {
this.location.onUrlChange(x => this.urlChange(x));
}
ngOnInit(): void {}
urlChange(x) {
console.log(x);
}
}
我从RC 5开始这样做
this.router.events
.map( event => event instanceof NavigationStart )
.subscribe( () => {
// TODO
} );
在angular 6和RxJS6中:
import { filter, debounceTime } from 'rxjs/operators';
this.router.events.pipe(
filter((event) => event instanceof NavigationEnd),
debounceTime(40000)
).subscribe(
x => {
console.log('val',x);
this.router.navigate(['/']); /*Redirect to Home*/
}
)
路由器3.0.0-beta。2应该是
this.router.events.subscribe(path => {
console.log('path = ', path);
});
如果您只是想检查路由/查询参数更改,如localhost:4200/users/1?编辑=1到localhost:4200/users/2?Edit =0你可以像下面这样使用可观察的参数。
import { ActivatedRoute, Params } from '@angular/router';
export class SomeClass implements OnInit {
paramFromRoute;
constructor(private route: ActivatedRoute) { }
ngOnInit() {
this.paramFromRoute = this.route.snapshot.params['paramName']; // this one is required for getting it first time
this.route.params.subscribe((params:Params)=>{
this.paramFromRoute = params['paramName'] // whenever route is changed, this function will triggered.
});
// for queryParams you can subscribe to this.route.queryParams
}
}