import {Component} from 'angular2/core';
import {User} from "./User";
import {UserService} from "./user-service";
import {Logger} from "./logger-service";

@Component({
    selector: 'appTest',template: `
            <ul>
                <li *ngFor="#user of users"><span>{{user.name}}</span>{{user.age}}</li>
            </ul>
    `,providers: [
        Logger,UserService
    ]
})

export class App {
    users: User[];
    constructor(private userService: UserService) {
        this.users = userService.getUsers();
    }
}  

/**
 * Created by dell on 2016/9/8.
 */
import {Injectable} from 'angular2/core';
import {Users} from "./user-data";
import {Logger} from "./logger-service";

@Injectable()
export class UserService {

    constructor(private logger: Logger) {
    }

    getUsers() {

        this.logger.log('get users');
        return Users;
    }
}

/**
 * Created by dell on 2016/9/9.
 */

import {Injectable} from 'angular2/core';

@Injectable()
export class Logger{
    logs: string[] = [];
    log(msg) {
        this.logs.push(msg);
        console.warn('From logger class: ' + msg);
    }
}