问题描述
Please refer my project structure here 我创建了一个包含多个延迟加载的嵌套模块的项目。
- 在应用程序启动时,将加载AppModule
- 当用户单击登录按钮时,LoginModule已加载
- 如果用户存在,即登录成功,则应从login-routing.module.ts延迟加载AppModule的另一个功能模块IntegratedPmntsModule。它正在使用“ button routerLink ='integratePayments'class =“ pmntButton”'完美地加载IntegratedPmntsModule,但这不是我想要的。
我在这里的要求是有条件地加载功能子模块,如组件login.component.ts中所示,当用户登录失败时,应将其导航至登录(由于LoginModule已被延迟加载,因此可以正常工作),以及何时登录成功后,应将用户导航到IntegratedPmntsModule中存在的IntegratedPaymentsComponent(这没有发生)。
-
this.router.navigate(['integratedPayments']); -给出“未捕获(承诺):错误:无法匹配任何路线” integratedPayments”
-
我什至尝试使用NgModuleFactoryLoader.load()的load()方法加载IntegratedPmntsModule,这给出了“找不到模块错误”
login.component.ts
@Component({
selector: 'app-login',templateUrl: './login.component.html',styleUrls: ['./login.component.css']
})
export class LoginComponent implements OnInit {
loginFormGroup: FormGroup;
customerModel:CustomerLoginModel = new CustomerLoginModel();
userExist: Boolean = true;
constructor(private loginService: LoginService,private router: Router,private readonly loader: NgModuleFactoryLoader) { }
ngOnInit(): void {
this.loginFormGroup = new FormGroup({
customerId: new FormControl('',[Validators.required,Validators.maxLength(20),Validators.pattern('^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$')]),password: new FormControl('',Validators.maxLength(15)])
})
}
submitLoginForm(formGroup: FormGroup): any{
this.customerModel.setCustomerId(formGroup.value.customerId);
this.customerModel.setPassword(formGroup.value.password);
this.loginService.authenticateCustomer(this.customerModel).subscribe(
response=>{
this.userExist=response},error=>{
console.log(error)
}
);
if(this.userExist){
//this.loader.load('./app/integrate-pmnts-module/integrate-pmnts.module#IntegratePmntsModule').
//then(factory =>this.router.navigate(['integratedPayments']));
this.router.navigate(['integratedPayments']);
}
else
this.router.navigate(['login']);
}
}
app-routing.module.ts
import { NgModule } from '@angular/core';
import { Routes,RouterModule } from '@angular/router';
import { LoginauthGuard } from './login/loginauth.guard';
const routes: Routes = [
{
path: 'login',loadChildren: () => import('./login/login.module').then(mdule=>mdule.LoginModule),},];
@NgModule({
imports: [RouterModule.forRoot(routes)],exports: [RouterModule]
})
export class AppRoutingModule { }
login-routing.module.ts
const routes: Routes = [
{
path: '',component: LoginComponent,//canDeactivate: [LoginauthGuard]
},{
path: 'integratedPayments',loadChildren: () => import('../integrate-pmnts-module/integrate-pmnts.module').then(mdule=>mdule.IntegratePmntsModule)
}
];
@NgModule({
imports: [RouterModule.forChild(routes)],exports: [RouterModule]
})
export class LoginRoutingModule {
}
login.component.html
<html>
<form [formGroup]="loginFormGroup" (ngSubmit)="submitLoginForm(loginFormGroup)">
Customer Id:<input type="text" formControlName="customerId" placeholder="Enter Customer ID"><br><br>
Password: <input type="password" formControlName="password" placeholder="Enter Password"><br><br>
<div *ngIf='!userExist'>
Please enter valid credentials!
</div><br><br>
<button class="pmntButton">Login</button>
</form>
</html>
integratepayments-routing.module.ts
const routes: Routes = [
{
path: '',component: IntegratedPaymentsComponent
},{
path: 'eftPaymentsPage',loadChildren: () => import('src/app/integrate-pmnts-module/eft-payments-module/eft-payments-module').then(mod=>mod.EftPaymentsModuleModule)
}
];
@NgModule({
imports: [RouterModule.forChild(routes)],exports: [RouterModule]
})
export class IntegratedPaymentsRoutingModule { }
解决方法
由于integratedPayments
路径是login
路径的子,因此您应该使用:this.router.navigateByUrl('login/integratedPayments')
。
这可能仍然不起作用,因为来自login-routing.module.ts
的路由定义如下:
const routes: Routes = [
{
path: '',component: LoginComponent,//canDeactivate: [LoginauthGuard]
},{
path: 'integratedPayments',loadChildren: () => import('../integrate-pmnts-module/integrate-pmnts.module').then(mdule=>mdule.IntegratePmntsModule)
}
];
这意味着第一条路线(path: ''
)将始终匹配。为了避免这种情况,您可以做的是添加pathMatch: 'full'
选项:
const routes: Routes = [
{
path: '',pathMatch: 'full'
},loadChildren: () => import('../integrate-pmnts-module/integrate-pmnts.module').then(mdule=>mdule.IntegratePmntsModule)
}
];
完美配合'button routerLink ='integratePayments'class =“ pmntButton”'
这是因为RouterLink
指令在内部是如何工作的。
当点击具有以下指令的按钮时,我们来看看what happens:
@HostListener('click')
onClick(): boolean {
const extras = {
skipLocationChange: attrBoolValue(this.skipLocationChange),replaceUrl: attrBoolValue(this.replaceUrl),state: this.state,};
this.router.navigateByUrl(this.urlTree,extras);
return true;
}
get urlTree(): UrlTree {
return this.router.createUrlTree(this.commands,{
relativeTo: this.route,// !
queryParams: this.queryParams,fragment: this.fragment,preserveQueryParams: attrBoolValue(this.preserve),queryParamsHandling: this.queryParamsHandling,preserveFragment: attrBoolValue(this.preserveFragment),});
}
如您所见,它使用的是relativeTo
选项。 this.route
作为private route: ActivatedRoute
注入。
这意味着您可以通过登录组件将其与this.router.navigate(['integratedPayments']);
一起使用。
您必须首先在登录组件中注入ActivatedRoute
,然后将relativeTo
选项添加到route.navigate
:
this.router.navigate(['integratedPayments'],{ relativeTo: this.route });