如果Resolve失败,则重定向Angular 2

Question

如果Angular 2中的解析失败,如何重定向到另一个页面？我将此解析称为我的编辑页面,但我想处理Resolve页面中的错误

我的决心:

 resolve(route: ActivatedRouteSnapshot): Promise<any>|boolean {

        return new Promise((resolve, reject) => {

            if (route.params['id'] !== undefined) {
                this.dataService.getHttpEmpresaShow(this.endpoint_url_Get + route.params['id'])
                    .subscribe(
                     result => {                    
                            console.log("ok");
                            return resolve(result);                     
                    },
                    error => {
                return resolve(error);
            });
    }});

Answer 1

就像在文档中一样,调用this.router.navigate(["url"])...(想想Router在你的构造函数中注入)

class MyResolve {

  constructor(private router: Router) {}

  resolve(route: ActivatedRouteSnapshot): Observable <any> {
    return this.dataService.getHttpEmpresaShow(this.endpoint_url_Get + route.params['id'])
      .pipe(catchError(err => {
        this.router.navigate(["/404"]);
        return EMPTY;
      }));
  }
}