我用这个:
import { HttpParams } from '@angular/common/http';
let params = new HttpParams();
params.append('newOrdNum','123');
但这不起作用,我不会在网址中附加param。有什么建议吗?
这可以通过使用Router
类来存档:
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和角度Router API
我不得不调整Jota.Toledos回答一点,以便它适用于我,我不得不取出额外的第二个和最后一个属性 - 对象:
navigateToFoo(){
this._router.navigate([], {
queryParams: {
newOrdNum: '123'
},
queryParamsHandling: 'merge',
});
}
你应该使用Router
模块。检查这个文档:https://angular.io/guide/router
您需要导入这些模块:import { Router, ActivatedRoute, ParamMap } from '@angular/router';