我从6月份开始学习Angular2。IO快速入门和"英雄指南"(教程)都是基于已弃用的路由器和旧的main。ts-syntax(现在我们有了ngModules)。
我在升级这两个东西时都遇到了问题:使用ngModule (app.module.ts)和使用新的路由器。
错误:http://localhost:3000/traceur加载资源:服务器失败返回404 (Not Found) localhost/:22错误:加载XHR错误(404 Not Found(…)http://localhost: 3000/的跑酷者所
在index.html中抛出:
System.import('app').catch(function(err){ console.error(err); });
主要。ts (OLD, works)
import { bootstrap } from '@angular/platform-browser-dynamic';
import { AppComponent } from './app.component';
import { HTTP_PROVIDERS, Http, Headers, Response } from '@angular/http';
import 'rxjs/Rx'; // required to use the .map()-Function on a Observable-Object
// Custom Services
import { GlobalSessionService } from './global-session.service';
import { NavbarMenuService } from './navbar-menu.service';
bootstrap(AppComponent,
[
HTTP_PROVIDERS,
Http,
GlobalSessionService,
NavbarMenuService
]
);
主要。ts (NEW,不工作)
import { AppComponent } from './app.component';
// The browser platform with a compiler
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
// The app module
import { AppModule } from './app.module';
// Compile and launch the module
platformBrowserDynamic().bootstrapModule(AppModule);
app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { HTTP_PROVIDERS, Http } from '@angular/http';
import { routing, appRoutingProviders } from './app.routing';
// Custom Services
import { GlobalSessionService } from './global-session.service';
import { NavbarMenuService } from './navbar-menu.service';
@NgModule({
imports: [ BrowserModule, routing ],
declarations: [ AppComponent ],
providers: [
appRoutingProviders,
HTTP_PROVIDERS,
Http,
GlobalSessionService,
NavbarMenuService
],
bootstrap: [ AppComponent ]
})
export class AppModule { }
旧路由(app.component.ts)
@RouteConfig([
{ path: '/unsere-angebote',
name: 'UnsereAngebote',
component: UnsereAngeboteComponent,
useAsDefault: true
},
{ path: '/ihre-loesungen',
name: 'IhreLoesungen',
component: IhreLoesungenComponent
},
...
新的路由(app.routes.ts)
import { Routes, RouterModule } from '@angular/router';
...
import { TrainingsComponent } ...
...
import {NewsComponent} from ...
const appRoutes: Routes = [
...
{ path: '/news',
component: NewsComponent
},
{
path: '**',
component: PageNotFoundComponent
}
];
export const appRoutingProviders: any[] = [
];
export const routing = RouterModule.forRoot(appRoutes);
systemjs.config.js
(function(global) {
// map tells the System loader where to look for things
var map = {
'app': 'app', // 'dist',
'@angular': 'node_modules/@angular',
'rxjs': 'node_modules/rxjs'
};
// packages tells the System loader how to load when no filename and/or no extension
var packages = {
'app': { main: 'main.js', defaultExtension: 'js' },
'rxjs': { defaultExtension: 'js' }
};
var ngPackageNames = [
'common',
'compiler',
'core',
'http',
'platform-browser',
'platform-browser-dynamic',
'router',
'router-deprecated',
'upgrade',
];
// Add package entries for angular packages
ngPackageNames.forEach(function(pkgName) {
packages['@angular/'+pkgName] = { main: '/bundles/' + pkgName + '.umd.js', defaultExtension: 'js' };
});
var config = {
map: map,
packages: packages
}
System.config(config);
})(this);
package.json
{
"name": "abc-project",
"version": "0.1.0",
"scripts": {
"start": "tsc && concurrently "npm run tsc:w" "npm run lite" ",
"lite": "lite-server",
"postinstall": "typings install",
"tsc": "tsc",
"tsc:w": "tsc -w",
"typings": "typings"
},
"dependencies": {
"@angular/common": "2.0.0-rc.5",
"@angular/compiler": "2.0.0-rc.5",
"@angular/core": "2.0.0-rc.5",
"@angular/http": "2.0.0-rc.5",
"@angular/platform-browser": "2.0.0-rc.5",
"@angular/platform-browser-dynamic": "2.0.0-rc.5",
"@angular/router": "3.0.0-rc.1",
"@angular/router-deprecated": "2.0.0-rc.2",
"@angular/upgrade": "2.0.0-rc.5",
"systemjs": "0.19.36",
"core-js": "^2.4.1",
"reflect-metadata": "^0.1.8",
"rxjs": "5.0.0-beta.6",
"zone.js": "^0.6.12",
"bootstrap": "^3.3.7"
},
"devDependencies": {
"concurrently": "^2.0.0",
"lite-server": "^2.2.2",
"typescript": "^1.8.10",
"typings":"^1.3.2"
}
}
我发现了错误,我有一个类似的问题,像这里:Angular2: error at startup of the app "http://localhost:3000/traceur 404 (Not found)"
ts文件开头的注释会终止应用程序。好吧,至少在评论中导入。疯狂的错误. .
主要我。ts-file看起来像这样:
/*import { bootstrap } from '@angular/platform-browser-dynamic';
import { AppComponent } from './app.component';
import { HTTP_PROVIDERS, Http } from '@angular/http';
import 'rxjs/Rx'; // required to use the .map()-Function on a Observable-Object
*/
/*
// Custom Services
import { GlobalSessionService } from './global-session.service';
import { NavbarMenuService } from './navbar-menu.service';
bootstrap(AppComponent,
[
HTTP_PROVIDERS,
Http,
GlobalSessionService,
NavbarMenuService
]
);*/
import { bootstrap } from '@angular/platform-browser-dynamic';
import { AppComponent } from './app.component';
import { HTTP_PROVIDERS, Http, Headers, Response } from '@angular/http';
import 'rxjs/Rx'; // required to use the .map()-Function on a Observable-Object
// Custom Services
import { GlobalSessionService } from './global-session.service';
import { NavbarMenuService } from './navbar-menu.service';
bootstrap(AppComponent,
[
HTTP_PROVIDERS,
Http,
GlobalSessionService,
NavbarMenuService
]
);