Angular 模块之间的路由

Question

I'm building simple angular application. There are two modules as student and teacher . Here is how my project organized.

First when user enter to the application i let him to choose whether he is an teacher or student.

Depending on what he user will be redirected in to the corresponding module.

import {NgModule} from '@angular/core';
import {Routes, RouterModule} from '@angular/router';
import { StudentModule } from './student/student.module';
import { TeacherModule } from './teacher/teacher.module';
import { HomeComponent } from './home/home.component';


const routes: Routes = [
    {
        path: '',
        component: HomeComponent
    },
    {
        path: 'student',
        loadChildren: () => StudentModule
    },
    {
        path: 'teacher',
        loadChildren: () => TeacherModule
    }
];

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


  } 

Here is my app.routing.ts file.

My problem us when i redirected into the module i want to route between component in those module. Should i add another <router-outlet> into each modules or can i do that with the only <router-outlet> in AppModule .

If i should add another <router-outlet> how should i write my router class for those modules.

Answer 1

Lazy loading way Angular v8, v9 and Up

https://angular.io/guide/lazy-loading-ngmodules

// In app module route
{
 path: 'your-path',
 loadChildren: () => import('./path-to/your.module').then(m => m.YourModule)
}

// in your module
const yourRoutes: Routes = [
  { path: '',  component: YourComponent }
];

export const yourRouting = RouterModule.forChild(yourRoutes);

@NgModule({
  imports: [
   yourRouting
  ],
  declarations: [
    YourComponent
  ]
})
export class YourModule{
}

Lazy loading way Angular v7, v6 and down

// In app module route
{
 path: 'your-path',
 loadChildren: 'app/your.module#YourModule'
}

// in your module
const yourRoutes: Routes = [
  { path: '',  component: YourComponent }
];

export const yourRouting = RouterModule.forChild(yourRoutes);

@NgModule({
  imports: [
   yourRouting
  ],
  declarations: [
    YourComponent
  ]
})
export class YourModule{
}

Not lazy loading way

Just import the YourModule in the main module and it will work if the routes are not lazily loaded.

@NgModule({
  imports: [
    BrowserModule,
    FormsModule,
    YourModule,
    routing
  ],
  declarations: [
    AppComponent
  ],
  providers: [
    appRoutingProviders
  ],
  bootstrap: [ AppComponent ]
})
export class AppModule {
}

Take some time to read rout documentation https://angular.io/guide/router

Check this answer https://stackoverflow.com/a/39284277/6786941

Answer 2

Yes, you need to define routing for individual modules and in the module component file you need to provide

Below should be the file structure

- Teacher 
   -teacher.component.html  --> here you should put <router-outlet>
   -techer-routing.module.ts --> here you need to define routes for teacher module
   -teacher.module.ts --> import techer-routing.module here
   -Logincomponent
        -login.component.html
        -login.component.ts
   -Homecomponent
        -home.component.html
        -home.component.ts

Same as another module for students.

Next step is to specify teacher module internal routes. below are the probable content of

teacher-routing.module.ts

Below are the sample routes for teacher module

 const routes: Routes = [
    {path: '', component: TeacherComponent, children: [
    {path: '', component: TeacherComponent,data: {title: "Teachers"}},
    {path: 'Home',  component:HomeComponent, data: {title: "Home"}},
    {path: 'Register',  component:RegisterComponent, data: {title: 
      "Register"}},
     ]
   }
 ]

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

export class TeacherRoutingModule{}