带有嵌套路由器出口的 Angular 9 嵌套延迟加载模块

我正在尝试使用 Angular 9 开发 SPA，我几乎尝试延迟加载每个组件及其所有子组件。当我尝试将路由器出口放在延迟加载的组件之一中并且我希望使用该路由器出口来加载子组件（也是延迟加载的）时，出现了我的问题。 当我这样做时，我总是将所有嵌套的延迟加载组件加载到 app.component.html 的主路由器出口中，而不是加载到嵌套延迟加载组件中的路由器出口中

应用程序组件模板：

<app-navbar></app-navbar>
<router-outlet></router-outlet>

应用程序路由.模块：

const routes: Routes = [
  { path: '', component: HomeComponent },
  { path: 'login', component: LoginComponent },
  { path: 'articles', loadChildren: () => import('./articles-viewer/articles-viewer.module').then(m => m.ArticlesViewerModule) },
  { path: 'dashboard', loadChildren: () => import('./dashboard/dashboard.module').then(m => m.DashboardModule) },
  { path: '**', redirectTo: ''}
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }

应用程序模块：

@NgModule({
  declarations: [
    AppComponent,
    HomeComponent,
    LoginComponent,
    NavbarComponent,
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    HttpClientModule,
    BrowserAnimationsModule,
    AppAngularMaterial
  ],
  providers: [
    AppHttpInterceptors
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

navbar.component 模板：

<a routerLink="">Home</a>
<a routerLink="/articles">Articles</a>
<a routerLink="/dashboard">Dashboard</a>

仪表板模板：

<a routerLink="statistics">Statistics</a>
<router-outlet></router-outlet>

仪表板.模块：

@NgModule({
  declarations: [DashboardComponent],
  imports: [
    CommonModule,
    DashboardRoutingModule,
    AppAngularMaterial
  ]
})
export class DashboardModule { }

仪表板路由.模块：

const routes: Routes = [
  { path: '', component: DashboardComponent },
  { path: 'statistics', loadChildren: () => import('./statistics/statistics.module').then(m => m.StatisticsModule) }
  ];

@NgModule({
  imports: [RouterModule.forChild(routes)],
  exports: [RouterModule]
})
export class DashboardRoutingModule { }

简而言之，统计组件（延迟加载的组件）被加载到 app.component 模板中声明的 router-outlet 中，而不是仪表板模板中的 router-outlet 中，并且仪表板组件被卸载

我尝试在 angular.io 中找到解决方案，但我得到的只是管理同一组件中的多个出口。另外，这就是我在谷歌上搜索这个问题时得到的结果。

有什么解决办法吗？

我有类似的问题！我这边的问题是我导入了延迟加载的模块，因此路由定义对于应用程序路由器出口是可见的。

如果您需要示例，请随时发表评论。

更新：2021-08-24 添加了完整的代码示例

下面的例子可以无限扩展：

文件夹结构：

1个应用程序模块：

import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";

import { CoreModule } from "@core/core.module";
import { AppRoutingModule } from "@routes/app-routing.module";

import { AppComponent } from "./app.component";

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

@NgModule({
  declarations: [AppComponent],
  imports: [BrowserModule, CoreModule, AppRoutingModule, BrowserAnimationsModule],
  providers: [],
  bootstrap: [AppComponent],
})
export class AppModule {}

2 应用程序组件：

import { Component } from "@angular/core";

@Component({
  selector: "rot-root",
  template: ` <router-outlet></router-outlet> `, // <===== ROOT ROUTER-OUTLET
  styleUrls: ["./app.component.scss"],
})
export class AppComponent {}

3 应用程序路由.模块：

import { NgModule } from "@angular/core";
import { Routes, RouterModule } from "@angular/router";

export const ROUTES: Routes = [
  {
    path: "",
    pathMatch: "prefix",
    loadChildren: () =>
      import("./main/main-routing.module").then((m) => m.MainRoutingModule),
  },
];

@NgModule({
  declarations: [],
  imports: [
    RouterModule.forRoot(ROUTES, { enableTracing: false })
  ],
  exports: [RouterModule],
})
export class AppRoutingModule {}

4 主路由.模块：

import { NgModule } from "@angular/core";
import { Routes, RouterModule } from "@angular/router";

import { layoutModules } from "./layouts";

import { MainLayoutViewComponent } from "./layouts/main-layout/views";

export const SUBROUTES: Routes = [
  {
    path: "",
    pathMatch: "prefix",
    component: MainLayoutViewComponent, // <==== DISPLAYED IN ROOT ROUTER-OUTLET
    children: [ // <==== CHILDREN ARE DISPLAYED IN SUB ROUTER-OUTLET (6)
      {
        path: "dashboard",
        loadChildren: () => import("./dashboard/dashboard.module").then(m => m.DashboardModule)
      },
      // <==== A LOT OF ROUTES FROM THE MAIN FOLDER - SAME AS DASHBOARD ====>
    ],
  },
];

@NgModule({
  declarations: [],
  imports: [
    RouterModule.forChild(SUBROUTES),
    ...layoutModules
  ],
  exports: [RouterModule],
})
export class MainRoutingModule {}

5 主布局.模块：

import { NgModule } from "@angular/core";
import { SharedModule } from "@shared/shared.module";

// material modules
// <==== a lot of material imports :D ====>

// module components
import { views } from "./views"; // <===== HERE I IMPORT THE MAIN-LAYOUT-VIEW
import { containers } from "./containers";
import { components } from "./components";

@NgModule({
  declarations: [...views, ...containers, ...components],
  imports: [
    SharedModule,
    // <==== a lot of material imports :D ====>
  ],
})
export class MainLayoutModule {}

6 主布局视图.组件：

import { Component, OnInit } from "@angular/core";

import { Observable } from "rxjs";

import { SidenavService } from "@core/services";

@Component({
  selector: "rot-main-layout-view",
  template: `
    <rot-main-navbar></rot-main-navbar>
    <mat-drawer-container autosize hasBackdrop>
      <mat-drawer mode="over" [opened]="opened$ | async">
        <rot-main-sidenav></rot-main-sidenav>
      </mat-drawer>
      <div class="content-wrapper">
        <router-outlet></router-outlet>          <==== SUB ROUTER-OUTLET
      </div>
    </mat-drawer-container>
  `,
  styleUrls: ["./main-layout-view.component.scss"],
})
export class MainLayoutViewComponent implements OnInit {

  constructor(private _sidenavService: SidenavService) {}

  ngOnInit(): void {}

  get opened$(): Observable<boolean> {
    return this._sidenavService.opened$;
  }
}