Angular2使用外部json配置文件进行异步引导

我已升级到angular2 RC6,并希望在引导我的AppModule之前加载外部 JSON配置文件.我在RC5之前有这个工作,但我现在很难找到一种注入这些数据的等效方法.

/** Create dummy XSRF Strategy for http. */
const XRSF_mock = provide(XSRFStrategy,{ provide: XSRFStrategy,useValue:  new FakeXSRFStrategyservice() });

/** Create new DI. */
var injector = ReflectiveInjector.resolveAndCreate([Configservice,http_PROVIDERS,XRSF_mock]);

/** Get http via DI. */
var http = injector.get(http);

/** http load config file before bootstrapping app. */
http.get('./config.json').map(res => res.json())
    .subscribe(data => {

        /** Load JSON responsE into Configservice. */
        let jsonConfig: Configservice = new Configservice();
        jsonConfig.fromJson(data);

        /** Bootstrap AppCOmponent. */
        bootstrap(AppComponent,[...,provide(Configservice,{ useValue: jsonConfig })
    ])
    .catch(err => console.error(err));
});

这工作得很好,但很难改变与RC6一起工作.

我正在尝试以下方法,但很难修改带有加载数据的预定义AppModule：

const platform = platformBrowserDynamic();

if (XMLhttprequest) { // Mozilla,Safari,...
  request = new XMLhttprequest();
} else if (ActiveXObject) { // IE
  try {
    request = new ActiveXObject('Msxml2.XMLhttp');
  } catch (E) {
    try {
      request = new ActiveXObject('Microsoft.XMLhttp');
    } catch (E) {
      console.log(E);
    }
  }
}
request.onreadystatechange = function() {
  if (this.readyState === 4 && this.status === 200) {
    var json = JSON.parse(this.responseText);
    let jsonConfig: Configservice = new Configservice();
    jsonConfig.fromJson(json);
    /**** How do I pass jsConfig object into my AppModule here?? ****/
    platform.bootstrapModule(AppModulE);
  }
};

// Open,send.
request.open('GET','./config.json',truE);
request.send(null);