我正在创建一个 Angular 2 RC5 应用程序,每个模块都是延迟加载的。当应用程序启动时,它会显示 LocalizationListComponent
中的列表。 ,如预期,但控制台中有一条消息,显示 Cannot find primary outlet to load 'LocalizationListComponent'
。考虑到列表已显示并且错误提示该组件非常奇怪和不寻常。
为了解决这个问题,我需要添加 <router-outlet>
与 ROUTER_DIRECTIVES
一起受此错误影响的每个组件和 View 。这样做的问题是该列表将显示两次,并且详细信息屏幕会加载到该列表下。这不是我想要的行为。
在此之后,我浏览了 angular.io 上的 Angular 2 路由教程,并检查了他们的 plunker 代码。一切似乎都相同,但错误仍然存在。
我已将应用程序上传到保管箱 ( inactive link
)
以下是模块、路由和组件(很抱歉列表太长):
app.routes.ts
import { Routes, RouterModule } from "@angular/router";
const routes: Routes = [
{
path: "",
redirectTo: "/localizations",
pathMatch: "full"
},
{
path: "localizations",
loadChildren: "./app/modules/localization/localization.module",
}
];
export const appRoutes = RouterModule.forRoot(routes);
app.module.ts
import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { appRoutes } from "../routes/app.routes"
import { AppComponent } from "../components/app.component";
import { AppNavigationComponent } from "../components/app-navigation.component";
import { AppStartComponent } from "../components/app-start.component";
import { LoggerModule } from "./logging/logger.module";
import { SharedModule } from "./shared/shared.module";
@NgModule({
imports: [ BrowserModule, LoggerModule.forRoot(), SharedModule, appRoutes ],
declarations: [ AppComponent, AppNavigationComponent, AppStartComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule {
}
app.component.ts
/// <reference path="../../typings/globals/node/index.d.ts" />
import { Component, OnInit, OnDestroy } from "@angular/core";
import { ActivatedRoute, Router, ROUTER_DIRECTIVES } from "@angular/router";
import { AppNavigationComponent } from "./app-navigation.component";
import { LoggerMessageType } from "../modules/logging/models/enums/LoggerMessageType";
import { AbstractLogger } from "../modules/logging/interfaces/AbstractLogger";
@Component({
moduleId: module.id,
selector: "vms-localization-app",
templateUrl: "../views/app.component.html",
directives: [ ROUTER_DIRECTIVES ]
})
export class AppComponent {
status: string;
constructor(private logger: AbstractLogger) {
this.status = "Alpha 0.1";
}
ngOnInit() : any {
}
ngOnDestroy() : any {
}
}
本地化.module.ts
import { NgModule } from "@angular/core";
import { RouterModule } from "@angular/router";
import { CommonModule } from "@angular/common";
import { FormsModule } from "@angular/forms";
import { localizationRoutes } from "./routes/localization.routes";
import { LocalizationListComponent } from "./components/localization-list.component";
import { LocalizationDetailsComponent } from "./components/localization-details.component";
import { AbstractLocalizationService } from "./interfaces/AbstractLocalizationService";
import { MockLocalizationService } from "./services/mock-localization.service";
@NgModule({
imports: [ localizationRoutes, CommonModule, FormsModule, RouterModule ],
declarations: [ LocalizationListComponent, LocalizationDetailsComponent ],
providers: [ { provide: AbstractLocalizationService, useClass: MockLocalizationService } ]
})
export default class LocalizationModule {
}
本地化.routes.ts
import { Routes, RouterModule } from "@angular/router";
import { LocalizationListComponent } from "../components/localization-list.component";
import { LocalizationDetailsComponent } from "../components/localization-details.component";
const routes: Routes = [
{
path: "",
component: LocalizationListComponent,
children: [
{
path: "localization",
component: LocalizationListComponent
},
{
path: ":id",
component: LocalizationDetailsComponent
},
{
path: "",
component: LocalizationListComponent
}
]
}
];
export const localizationRoutes = RouterModule.forChild(routes);
本地化列表.component.ts
import { Component, OnInit } from "@angular/core";
import { Localization } from '../models/localization';
import { Language } from "../models/language";
import { AbstractLocalizationService } from "../interfaces/AbstractLocalizationService";
import { AbstractLogger } from "../../logging/interfaces/AbstractLogger";
import { LoggerMessageType } from "../../logging/models/enums/LoggerMessageType";
@Component({
moduleId: module.id,
selector: "localization-list",
templateUrl: "../views/localization-list.component.html"
})
export class LocalizationListComponent implements OnInit {
localizations: Localization[];
languages: Language[];
constructor(private localizationService: AbstractLocalizationService,
private logger: AbstractLogger) {
}
ngOnInit() : any {
this.localizationService.getLocalizations()
.subscribe((result: Localization[]) => {
this.localizations = result;
this.languages = this.localizations[0].languages;
});
}
}
app.component.html
<div class="container">
<div class="page-header">
<h1>VMS Localization<small>{{ status }}</small></h1>
<app-navigation></app-navigation>
</div>
<router-outlet></router-outlet>
</div>
上面的片段(以及提供的项目)一定有问题,但我看不到任何问题。
我还检查了 StackOverflow 上的其他问题,但它们主要涉及 app.component.ts 中缺少的 ROUTER_DIRECTIVES
感谢您的帮助!
最佳答案
我刚刚在 GitHub ( https://github.com/angular/angular/issues/10686 ) 上遇到一个问题,其中解释说这是一种故意行为。每一位拥有 children
的家长(似乎 loadChildren
也是如此)必须有自己的 socket 来加载子项。
似乎这在 Router documentation 中没有任何记录。 .
更新:
当您声明children
时在模块的路由器中,每个父级都必须有自己的 <router-outlet></router-outlet>
为了加载这个 child 。如何实现这个取决于需求。对于我的解决方案,我创建了一个空组件,其中仅包含 <router-outlet></router-outlet>
并定义路线如下:
import { Routes, RouterModule } from "@angular/router"
import { SomeParentComponent } from "./app/modules/SomeModule/SomeParentComponent"
import { SomeChildComponent1 } from "./app/modules/SomeModule/SomeChild1Component"
import { SomeChildComponent2 } from "./app/modules/SomeModule/SomeChild2Component"
const routes: Routes = [
path: "",
component: SomeParentComponent,
children: [
{
path: "",
component: SomeChild1Component
},
{
path: ":id",
component: SomeChild2Component
}
]
]
export const someModuleRoutes = RouterModule.forChild(routes);
这应该可以解决问题,因为主组件路由将调用 loadChildren
指着SomeParentComponent
.
关于angular - 找不到要加载的主 socket 'LocalizationListComponent',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38943629/