Angular 1和Angular 2混合应用程序路由问题(角度组件不显示)

Question

我有一个Angular 1和Angular 2混合应用程序,它使用以下指南设置,从AngularJS升级和将Angular 1应用程序迁移到Angular 2.我的根组件看起来像这样:

import { NgModule, Component } from '@angular/core';
import { RouterModule, UrlHandlingStrategy } from '@angular/router';
import { BrowserModule } from '@angular/platform-browser';
import { UpgradeModule } from '@angular/upgrade/static';
import { RouterUpgradeInitializer } from '@angular/router/upgrade';
import { MyModule } from './Mymodule/my-module';

export class Ng1Ng2UrlHandlingStrategy implements UrlHandlingStrategy {
    shouldProcessUrl(url: any) {
        return url.toString().startsWith("/Mymodule");
    }

    extract(url: any) {
        return url;
    }

    merge(url: any, whole: any) {
        return url;
    }
}

@Component({
    selector: 'root-component',
    template: `
    <router-outlet></router-outlet>
    <div class="ng-view"></div>
  `
})
export class RootComponent { }

@NgModule({
    imports: [
        BrowserModule,
        UpgradeModule,
        MyModule,

        RouterModule.forRoot([])
    ],
    providers: [
        { provide: UrlHandlingStrategy, useClass: Ng1Ng2UrlHandlingStrategy }
    ],
    bootstrap: [RootComponent],
    declarations: [RootComponent]
})
export class Ng2AppModule {
    constructor(public upgrade: UpgradeModule) { }
}

而我的"main.ts"如下:

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { setUpLocationSync } from '@angular/router/upgrade';
import { Ng2AppModule } from "./Angular2/app.rootcomponent";

// This is the entry point for the AngularJS/Angular hybrid application.
// It bootstraps the Angular module 'Ng2AppModule', which in turn bootstraps
// the AngularJS module 'angular1App'.
platformBrowserDynamic().bootstrapModule(Ng2AppModule).then(ref => {
    const upgrade = (<any>ref.instance).upgrade;
    // bootstrap angular1
    upgrade.bootstrap(document.body, ['angular1App']);
    setUpLocationSync(upgrade);
});

模块'MyModule'如下:

import { NgModule } from '@angular/core';
import { RouterModule } from '@angular/router';
import { TestDataListComponent } from './testdata-list.component';

@NgModule({
    imports: [
        RouterModule.forChild([
            {
                path: 'Mymodule', children: [
                    { path: 'testdata', component: TestDataListComponent }
                ]
            }
        ])
    ],
    declarations: [TestDataListComponent ]
})
export class MyModule {

}

'TestDataListComponent'组件非常简单:

import { Component } from '@angular/core';

@Component({
    selector: 'test-data',
    templateUrl: 'App/Angular2/MyModule/testdata-list.component'.html'
})
export class TestDataListComponent{

}

我链接到Angular 2组件的方式是在主菜单HTML页面中.相关代码如下:

<li id="main-menu" class="menu-top-level" ng-mouseover="cur = 'mymodule'">        
    <a ng-reflect-router-link="/Mymodule/testdata" href="#/Mymodule/testdata">
        MyModule
        <span>
            <i class="fa fa-check-square fa-2x"></i>
        </span>
    </a>
</li>

我遇到的问题是单击上面的链接将我带到一个空白视图,即不显示组件TestDataListComponent.但是,如果我在主Angular 2模块中替换以下行,即Ng2AppModule:

RouterModule.forRoot([])

有:

RouterModule.forRoot([], { useHash: true, initialNavigation: false })

组件TestDataListComponent显示正常,但是当我尝试导航回Angular 1组件时,通过单击链接,页面是空白的,我注意到我的浏览器窗口中的URL如下所示:

HTTP://本地主机:60813 /#/

虽然它应该是这样的:

HTTP://本地主机:60813 /#/ myclients

如果我第二次单击该链接,则URL正确并且Angular 1组件显示正常.

我的Angular 1模块angular1App的相关部分是:

angular.module("angular1App",
["ngRoute",
 "myInterceptorService",
 "ngStorage",
 "ngAnimate",
 "ui.bootstrap",
 "ngResource",
 "SignalR",
 "ui.select",
 "ngSanitize"])
.config([
    "$routeProvider", "$httpProvider", function($routeProvider, $httpProvider) {

        $httpProvider.interceptors.push("myInterceptorService");

        $routeProvider
            .when('/myclients',
            {
                title: "Client Data",
                controller: "clientDataCtrl",
                templateUrl: "/App/Common/Views/clientData.html"
            })

这里有什么问题？为什么我的Angular 2或Angular 1组件现在出现了？

Answer 1

该解决方案由 Brandonroberts 在 Angular github 上提供。详细信息请参见此问题https://github.com/angular/angular/issues/18832

解决方案摘录：“setupLocationSync 向路由器提供用于导航的 URL 的方式在基于哈希的路由中无法正常工作。我所做的是调整 setupLocationSync 的源以从哈希传递 URL 来进行导航。这样路由器将正确处理这两种情况的导航。”

详情请参阅上期中的 Plunker。