Question

我正在尝试使用APP_INITIALIZER执行我的saveURL方法，但是我的saveURL方法却出错了。

错误TypeError：无法读取未定义的属性'setCookie'

App.modulte.ts

 ...
   export function saveUrl(dualLogonService: DualLogonService) {
     console.debug('Executing saveUrl');
      return (): Promise<any> => {
        dualLogonService.setCookie(); //THIS IS WHAT GIVES ME ERROR
        return null;
      };
    }
   ...
    providers: [
    ...
          {
              provide: APP_INITIALIZER,
              useFactory: saveUrl,
              deps: [DualLogonService],
              multi: true
          }
    ]

DualLogonService.ts

import { Injectable } from '@angular/core';
import { Router, CanActivate } from '@angular/router';
import { AuthenticationService } from '@sec/security';
import { appConfigMapping } from 'src/environments/app.config.mapping';
import { of } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class DualLogonService implements CanActivate {
...
  constructor(
    private router: Router,
    private authService: AuthenticationService
  ) {}
..

  setCookie(): void {
    document.cookie = 'Deeplink' + '=' + this.router.url + ';path=/';
  }

Answer 1

将DualLogonService添加到Providers数组

无法读取APP_INITIALIZER中的undefined属性-Angular

1 个答案: