Angular 2 - 相当于路由器解析新路由器的数据

Question

我正在玩 Angular 2.0 的 new router，我尝试使用类似于 Angular 1.X ui-router/ng-route 解析机制的东西。

我试图使用 RouteData 实现这一点:

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

import {HomeCmp} from '../home/home';
import {AboutCmp} from '../about/about';
import {NameList} from '../../services/name_list';
import {PersonalizationList} from '../../services/personalization_list';

@Component({
  selector: 'app',
  viewProviders: [NameList, PersonalizationList],
  templateUrl: './components/app/app.html',
  styleUrls: ['./components/app/app.css'],
  encapsulation: ViewEncapsulation.None,
  directives: [ROUTER_DIRECTIVES]
})
@RouteConfig([
  { path: '/', component: HomeCmp, as: 'Home', data: this.history },
  { path: '/about', component: AboutCmp, as: 'About' }
])
export class AppCmp {
  history: string[] = [];
  constructor(public list: PersonalizationList) {
    list.get('histoy', (response) => {
      this.history = response;
    });
  }
}

使用这个的组件(home):

import {Component} from 'angular2/core';
import {PersonalizationList} from '../../services/personalization_list';
import {Router, ROUTER_DIRECTIVES, routerBindings, RouteConfig, RouteData} from 'angular2/router';

@Component({
  selector: 'home',
  templateUrl: './components/home/home.html',
  styleUrls: ['./components/home/home.css'],
  directives: [ROUTER_DIRECTIVES]
})
export class HomeCmp {
  constructor(data: RouteData) {
    console.log(data);
  }
}

记录到控制台的数据不是我从服务初始化的数据。如果我直接在 @RouteConfig 中初始化它，它就会工作。例如:

@RouteConfig([
  { path: '/', component: HomeCmp, as: 'Home', data: [1,2,3,4] },
  { path: '/about', component: AboutCmp, as: 'About' }
])

因此，我遗漏了将数据从 Controller /组件传递到 @RouteConfig 的部分。

另一个问题——在 Angular 1.X 中，通过路由器的解析将数据传递到路由是一种很好的做法。使用 new router/components router 以这种方式将数据传递给组件是否仍然是一个好习惯？

编辑可以找到解决方案here - 使用 @CanActivate 事件

Answer 1

您必须将您的@RouteConfig 移动到 AppCmp 构造函数中:

//@RouteConfig([
//  { path: '/', component: HomeCmp, as: 'Home', data: this.history },
//  { path: '/about', component: AboutCmp, as: 'About' }
//])
export class AppCmp {
  history: string[] = [];
  constructor(public list: PersonalizationList,
              private router_: Router) {
    list.get('histoy', (response) => {
      this.history = response;
    });
    router_.config([
      { path: '/', component: HomeCmp, as: 'Home', data: this.history },
      { path: '/about', component: AboutCmp, as: 'About' }
    ]);
  }
}

在控制台输出我可以看到:

RouteData {data: "test sample"}

希望对您有所帮助!