本文介绍了Angular 2 - 将参数传递给路由的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个 标签,如下所示,
<a [routerLink]="[/Person']">Person</a>
所以我想将 person.id
传递给这个 /Person
路由器.我怎么能通过它&在 @RouteConfig
上处理它,就像 Angular 1 中的 params
推荐答案
<a [routerLink]="['/Person', person.id]">Person</a>
this.route.params.subscribe(
(params: Params) => {
this.id = params['id'];
}
);
this.route.params.forEach(
(params: Params) => {
this.id = params['id'];
}
);
在这个例子中,你必须像这样注入 ActivatedRoute
(例如作为路由属性):
In this example you have to inject ActivatedRoute
(e.g as route property) like that:
constructor(private route: ActivatedRoute) {}
如果您订阅 - 取消订阅 Observable
以防止内存泄漏很重要.
If you subscribe - it is important to unsubscribe Observable
to prevent memory leaks.
export class SimpleComponent implements OnInit, OnDestroy {
private id: number;
private route$: Subscription;
constructor(private route: ActivatedRoute) {}
ngOnInit() {
this.route$ = this.route.params.subscribe(
(params: Params) => {
this.id = +params['id']; // cast to number
}
);
}
ngOnDestroy() {
if (this.route$) this.route$.unsubscribe();
}
}
export const routes = [
...
{ path : 'Person/:id', component : ...},
...
];
这篇关于Angular 2 - 将参数传递给路由的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!