我在Angular 2 Dart中使用Router和RouteParams。
我的路线如下:
@RouteConfig(const [
const Route(path: '/', component: ViewLanding, as: 'home'),
const Route(path: '/landing', component: ViewLanding, as: 'landing'),
const Route(path: '/flights', component: ViewFlights, as: 'flights'),
const Route(path: '/picker/:cityDepart/:cityArrival/:dateDepart/:dateArrival/', component: ViewFlights, as: 'picker'),
const Route(path: '/order/:id/:level/:dateDepart/:dateArrival/', component: ViewOrder, as: 'order'),
const Route(path: '/order/complete', component: ViewComplete, as: 'orderComplete')
])
//应用程序入口点:
void main() {
print('-- Main.dart 2 --');
bootstrap(Tickets, [
routerInjectables,
client_classes,
// The base path of your application
bind(APP_BASE_HREF).toValue('/'),
// uncomment this if you want to use '#' in your url
bind(LocationStrategy).toClass(HashLocationStrategy)
]);
}
这适用于router-outlet / router-link / router.navigate
然而,在页面重新加载时 - 我没有得到与params路线的正面匹配。 IE:如果我刷新http://localhost:8080/#/picker/SAN/SFO/2015-01-01/2015-04-02
- 我转到没有子路由的父视图。任何具有params的路线都会出现这种症状。
直接导航或刷新到:http://localhost:8080/#/flights/
- 按预期工作 - ViewFlights组件已实例化
症状: 使用params的路由失败。
问题: 如何定义路径配置以使用刷新
上的参数链接: https://github.com/rightisleft/web_apps_dart/blob/angular2/web/main.dart https://github.com/rightisleft/web_apps_dart/blob/angular2/lib/client/tickets.dart
答案 0 :(得分:0)
如果我正确理解您的问题,您需要订阅组件中的路由器事件以使用new更新旧的params,然后更新您的UI。
我认为您的问题是在您打开网址http://localhost:8080/#/picker/SAN/SFO/2015-01-01/2015-04-02
时,然后导航到http://localhost:8080/#/picker/SAN/SFO
。您所做的是更改路径,但组件已经实例化,这意味着新的参数不会被更新(也不会被删除)。
我通常在您的父组件中执行以下操作
constructor(private router:Router){
// Subscribe to the router events.
// It may be a good idea to assign this subscription to a variable, and then do an unsubscribe in your ngOnDestroy().
this.router.events.subscribe(event=>{
if(event instanceof ActivationEnd){
var cityDepart = event.snapshot.params["cityDepart"];
var cityArrival = event.snapshot.params["cityArrival"];
var dateDepart = event.snapshot.params["dateDepart"];
var dateArrival = event.snapshot.params["dateArrival"];
// do some logic
}
});
}