我在用这个:
import { HttpParams } from '@angular/common/http';
let params = new HttpParams();
params.append('newOrdNum','123');
但这不起作用，我不在url中附加参数.有什么建议吗？
我在用这个:
import { HttpParams } from '@angular/common/http';
let params = new HttpParams();
params.append('newOrdNum','123');
但这不起作用，我不在url中附加参数.有什么建议吗？
这可以通过使用Router类进行归档:
使用组件:
import { Router, ActivatedRoute } from '@angular/router';
@Component({})
export class FooComponent {
constructor(
private _route: ActivatedRoute,
private _router: Router
){}
navigateToFoo(){
// changes the route without moving from the current view or
// triggering a navigation event,
this._router.navigate([], {
relativeTo: this._route,
queryParams: {
newOrdNum: '123'
},
queryParamsHandling: 'merge',
// preserve the existing query params in the route
skipLocationChange: true
// do not trigger navigation
});
}
}
有关更多信息，请查看this book和Router API