我为Angular 2创造了一个服务:
import {Injectable} from "angular2/core"; import {Http} from "angular2/http"; import {TaskModel} from "./tasks.model" @Injectable() export class TasksDataService { tasks:Array<any>; constructor(http:Http) { this.tasks = [ new TaskModel("Dishes"),new TaskModel("Cleaning the garage"),new TaskModel("Mow the grass") ]; } getTasks():Array<any> { return this.tasks; } }
当我运行我的程序浏览器显示:
system.src.js:1049 GET http:// localhost:3000 / angular2 / http.js 404(未找到)
我已经看了教程,它们包括了相同的角度/ http。有谁看到出了什么问题?
您需要检查是否在主HTML文件中包含http.dev.js文件:
<script src="node_modules/angular2/bundles/angular2-polyfills.js"></script> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="node_modules/rxjs/bundles/Rx.js"></script> <script src="node_modules/angular2/bundles/angular2.dev.js"></script> <script src="node_modules/angular2/bundles/router.dev.js"></script> <script src="node_modules/angular2/bundles/http.dev.js"></script>
您需要添加HTTP_PROVIDERS作为引导函数的第二个参数:
import { HTTP_PROVIDERS } from 'angular2/http'; bootstrap(MyMainComponent,[ HTTP_PROVIDERS ]);
希望它能帮助你,蒂埃里