跟着angularjs2官方文档学习（四）

<!DOCTYPE html>
<html>
<head>
  <!-- Set the base href -->
  <script>document.write('<base href="' + document.location + '" />');</script>

  <Meta name="viewport" content="width=device-width,initial-scale=1">
  <link rel="stylesheet" href="styles.css">

  <!-- IE required polyfills,in this exact order -->
  <script src="lib/es6-shim.min.js"></script>
  <script src="lib/system-polyfills.js"></script>
  <script src="lib/shims_for_IE.js"></script>

  <script src="lib/angular2-polyfills.js"></script>
  <script src="lib/system.js"></script>
  <script src="lib/typescript.js"></script>
  <script src="lib/Rx.js"></script>
  <script src="lib/angular2.dev.js"></script>

  <!-- Add the router library -->
  <script src="lib/router.dev.js"></script>

  <script>
    System.config({
      transpiler: 'typescript',typescriptOptions: { emitDecoratorMetadata: true },packages: {'app': {defaultExtension: 'ts'}}
    });
    System.import('app/main')
            .then(null,console.error.bind(console));
  </script>
</head>

<body>
<my-app>loading...</my-app>
</body>

</html>

</html>

import {bootstrap}        from 'angular2/platform/browser';
import {ROUTER_PROVIDERS} from 'angular2/router';

import {AppComponent}     from './app';

// Add these symbols to override the `LocationStrategy`
//import {provide}           from 'angular2/core';
//import {LocationStrategy,//        HashLocationStrategy} from 'angular2/router';

bootstrap(AppComponent,[ROUTER_PROVIDERS,//provide(LocationStrategy,//       {useClass: HashLocationStrategy}) // .../#/crisis-center/
]);


/*
 Copyright 2016 Google Inc. All Rights Reserved.
 Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */

import {Component} from 'angular2/core';
import {RouteConfig,ROUTER_DIRECTIVES} from 'angular2/router';

import {HeroListComponent}     from './heroes/hero-list.component';
import {HeroDetailComponent}   from './heroes/hero-detail.component';
import {HeroService}           from './heroes/hero.service';

@Component({
    selector: 'my-app',template: `
    <nav>
      <a [routerLink]="['Heroes']">Heroes</a>
    </nav>
    <router-outlet></router-outlet>
  `,providers:  [ HeroService],directives: [ROUTER_DIRECTIVES]
})
@RouteConfig([
    {path: '/heroes',name: 'Heroes',component: HeroListComponent},{path: '/hero/:id',name: 'HeroDetail',component: HeroDetailComponent},])
export class AppComponent { }

import {Component,OnInit}   from 'angular2/core';
import {Hero,HeroService}   from './hero.service';
import {Router,RouteParams} from 'angular2/router';

@Component({
  template: `
    <ul class="items">
      <li *ngFor="#hero of heroes"
        [class.selected]="isSelected(hero)"
        (click)="onSelect(hero)">
        <span class="badge">{{hero.id}}</span> {{hero.name}}
      </li>
    </ul>
  `
})
export class HeroListComponent implements OnInit {
  heroes: Hero[];

  private _selectedId: number;

  constructor(
    private _service: HeroService,private _router: Router,routeParams: RouteParams)
  {
      this._selectedId = +routeParams.get('id');
  }

  isSelected(hero: Hero) { return hero.id === this._selectedId; }

  onSelect(hero: Hero) {
    this._router.navigate( ['HeroDetail',{ id: hero.id }] );
  }

  ngOnInit() {
    this._service.getHeroes().then(heroes => this.heroes = heroes)
  }
}

import {Component,OnInit}  from 'angular2/core';
import {Hero,HeroService}   from './hero.service';
import {RouteParams,Router} from 'angular2/router';

@Component({
  template: `
  <div *ngIf="hero">
    <h3>"{{hero.name}}"</h3>
    <div>
      <label>Id: </label>{{hero.id}}</div>
    <div>
      <label>Name: </label>
      <input [(ngModel)]="hero.name" placeholder="name"/>
    </div>
    <p>
      <button (click)="gotoHeroes()">Back</button>
    </p>
  </div>
  `,})
export class HeroDetailComponent implements OnInit  {
  hero: Hero;

  constructor(
    private _router:Router,private _routeParams:RouteParams,private _service:HeroService){}

  ngOnInit() {
    let id = this._routeParams.get('id');
    this._service.getHero(id).then(hero => this.hero = hero);
  }

  gotoHeroes() {
    let heroId = this.hero ? this.hero.id : null;
    this._router.navigate(['Heroes',{id: heroId} ]);
  }
}

import {Injectable} from 'angular2/core';

export class Hero {
  constructor(public id: number,public name: string) { }
}

@Injectable()
export class HeroService {
  getHeroes() { return heroesPromise; }

  getHero(id: number | string) {
    return heroesPromise
      .then(heroes => heroes.filter(h => h.id === +id)[0]);
  }
}

var HEROES = [
	new Hero(11,'Mr. Nice'),new Hero(12,'Narco'),new Hero(13,'Bombasto'),new Hero(14,'Celeritas'),new Hero(15,'Magneta'),new Hero(16,'RubberMan')
];

var heroesPromise = Promise.resolve(HEROES);

/* Master Styles */
h1 {
  color: #369; 
  font-family: Arial,Helvetica,sans-serif;   
  font-size: 250%;
}
h2,h3 { 
  color: #444;
  font-family: Arial,sans-serif;   
  font-weight: lighter;
}
body { 
  margin: 2em; 
}
body,input[text],button { 
  color: #888; 
  font-family: Cambria,Georgia; 
}
a {
  cursor: pointer;
  cursor: hand;
}
button {
  font-family: Arial;
  background-color: #eee;
  border: none;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  cursor: hand;
}
button:hover {
  background-color: #cfd8dc;
}
button:disabled {
  background-color: #eee;
  color: #aaa; 
  cursor: auto;
}

/* Navigation link styles */
nav a {
  padding: 5px 10px;
  text-decoration: none;
  margin-top: 10px;
  display: inline-block;
  background-color: #eee;
  border-radius: 4px;
}
nav a:visited,a:link {
  color: #607D8B;
}
nav a:hover {
  color: #039be5;
  background-color: #CFD8DC;
}
nav a.router-link-active {
  color: #039be5;
}

/* items class */
.items {
  margin: 0 0 2em 0;
  list-style-type: none;
  padding: 0;
  width: 24em;
}
.items li {
  cursor: pointer;
  position: relative;
  left: 0;
  background-color: #EEE;
  margin: .5em;
  padding: .3em 0;
  height: 1.6em;
  border-radius: 4px;
}
.items li:hover {
  color: #607D8B;
  background-color: #DDD;
  left: .1em;
}
.items li.selected:hover {
  background-color: #BBD8DC;
  color: white;
}
.items .text {
  position: relative;
  top: -3px;
}
.items {
  margin: 0 0 2em 0;
  list-style-type: none;
  padding: 0;
  width: 24em;
}
.items li {
  cursor: pointer;
  position: relative;
  left: 0;
  background-color: #EEE;
  margin: .5em;
  padding: .3em 0;
  height: 1.6em;
  border-radius: 4px;
}
.items li:hover {
  color: #607D8B;
  background-color: #DDD;
  left: .1em;
}
.items li.selected {
  background-color: #CFD8DC;
  color: white;
}

.items li.selected:hover {
  background-color: #BBD8DC;
}
.items .text {
  position: relative;
  top: -3px;
}
.items .badge {
  display: inline-block;
  font-size: small;
  color: white;
  padding: 0.8em 0.7em 0 0.7em;
  background-color: #607D8B;
  line-height: 1em;
  position: relative;
  left: -1px;
  top: -4px;
  height: 1.8em;
  margin-right: .8em;
  border-radius: 4px 0 0 4px;
}

/* everywhere else */
* { 
  font-family: Arial,sans-serif; 
}


/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/

原文链接：https://www.f2er.com/angularjs/148866.html

跟着angularjs2官方文档学习（四）

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