Angular 4未加载组件 [英] Angular 4 not loading component
问题描述
我正在尝试在Angular 4应用程序中使用Angular Routes，但是该应用程序无法加载与请求的路线匹配的组件:
I'm trying to use Angular Routes in Angular 4 app, but the app is not able to load the component matching the requested route:
这里是app-routing.module.ts:
import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
import { DashboardComponent } from './dashboard/dashboard.component';
const routes: Routes = [
{ path: 'dashboard', component: DashboardComponent },
{ path: '', redirectTo: '/dashboard', pathMatch: 'full' },
];
@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule { }
app.module.ts看起来像这样:
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DashboardComponent } from './dashboard/dashboard.component';
import { AppRoutingModule } from './app-routing.module';
@NgModule({
declarations: [
AppComponent,
DashboardComponent,
],
imports: [
BrowserModule,
AppRoutingModule,
],
providers: [ ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
app.component.html:
app.component.html:
<h1>
Welcome to {{title}}!
</h1>
<router-outlet></router-outlet>
我的dashboard.component.html:
<p>dashboard works!</p>
我正在尝试找出问题所在，还查看了Angular 4路由教程.请帮忙.
I'm trying to figure out whats wrong, also looked at the Angular 4 Routing tutorial. Please help.
推荐答案
I found the solution after some troubleshooting, and found the answer on this link. Basically, in app.module.ts, we just have to add this import statement for importing APP_BASE_HREF token:
import { APP_BASE_HREF } from '@angular/common';
并将APP_BASE_HREF添加到providers数组:
providers: [ {provide: APP_BASE_HREF, useValue: '/' }],
根据Angular 文档的另一种解决方案是简单地将<base href="/">添加为<head>标签的第一个孩子.
Another solution according to the Angular documentation is to simply add <base href="/"> as the first child of <head> tag.
这篇关于Angular 4未加载组件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
