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问根组件在路由器出口中呈现自身。
EN

Stack Overflow用户

提问于 2016-10-15 20:00:28

回答 1查看 853关注 0票数 1

以下是Range2js(ES2015)项目的结构：

src ├── app.js ├── components │ ├── app │ ├── index.js │ ├── list │ ├── loess │ └── nw ├── modules │ ├── app.module.js │ └── index.js ├── routes │ ├── app.routes.js │ └── index.js └── vendor.js

我不知道如何使用路由器出口标签。当我在根组件模板中使用它时，标记会使该组件本身呈现两次以替换路由器出口标记。抱歉重言片语。此外，我还有一个错误：Uncaught (in promise): SyntaxError: Failed to execute 'add' on 'DOMTokenList': The token provided must not be empty.

下面是呈现内容的图像。

这是原始的堆栈跟踪：

angular.vendor.js:2723ORIGINAL STACKTRACE:ErrorHandler.handleError @ angular.vendor.js:2723next @ angular.vendor.js:3586schedulerFn @ angular.vendor.js:3341SafeSubscriber.__tryOrUnsub @ angular.vendor.js:4971SafeSubscriber.next @ angular.vendor.js:4926Subscriber._next @ angular.vendor.js:4880Subscriber.next @ angular.vendor.js:4844Subject.next @ angular.vendor.js:4451EventEmitter.emit @ angular.vendor.js:3341onError @ angular.vendor.js:3421onHandleError @ angular.vendor.js:3349ZoneDelegate.handleError @ angular.vendor.js:24550Zone.runGuarded @ angular.vendor.js:24468_loop_1 @ angular.vendor.js:24709drainMicroTaskQueue @ angular.vendor.js:24717ZoneTask.invoke @ angular.vendor.js:24639 2016-10-15 22:29:01.285 angular.vendor.js:2723Error: Uncaught (in promise): SyntaxError: Failed to execute 'add' on 'DOMTokenList': The token provided must not be empty. at resolvePromise (angular.vendor.js:24762) at angular.vendor.js:24796 at ZoneDelegate.invokeTask (angular.vendor.js:24572) at Object.onInvokeTask (angular.vendor.js:3347) at ZoneDelegate.invokeTask (angular.vendor.js:24572) at Zone.runTask (angular.vendor.js:24488) at drainMicroTaskQueue (angular.vendor.js:24699) at XMLHttpRequest.ZoneTask.invoke (angular.vendor.js:24639)ErrorHandler.handleError @ angular.vendor.js:2723next @ angular.vendor.js:3586schedulerFn @ angular.vendor.js:3341SafeSubscriber.__tryOrUnsub @ angular.vendor.js:4971SafeSubscriber.next @ angular.vendor.js:4926Subscriber._next @ angular.vendor.js:4880Subscriber.next @ angular.vendor.js:4844Subject.next @ angular.vendor.js:4451EventEmitter.emit @ angular.vendor.js:3341onError @ angular.vendor.js:3421onHandleError @ angular.vendor.js:3349ZoneDelegate.handleError @ angular.vendor.js:24550Zone.runGuarded @ angular.vendor.js:24468_loop_1 @ angular.vendor.js:24709drainMicroTaskQueue @ angular.vendor.js:24717ZoneTask.invoke @ angular.vendor.js:24639

vendor.js：

//Polyfill
import '../node_modules/core-js';
import '../node_modules/zone.js';
import '../node_modules/reflect-metadata';
import '../node_modules/system';
//Dependencies
import '../node_modules/rxjs';

// Core
import '../node_modules/@angular/platform-browser';
import '../node_modules/@angular/platform-browser-dynamic';
import '../node_modules/@angular/forms';
import '../node_modules/@angular/http';
import '../node_modules/@angular/router';
import '../node_modules/@angular/core';
import '../node_modules/@angular/common';
import '../node_modules/@angular/compiler';

//jQuery
import '../node_modules/jquery';
//Bootstrap
import '../node_modules/bootstrap';
//Bootstrap sidebar
import '../node_modules/bootstrap-layout';
//Bootstrap slider
import '../node_modules/bootstrap-slider';

app.js：

import { platformBrowserDynamic } from '../node_modules/@angular/platform-browser-dynamic';

import { AppModule } from "./modules/app.module";

platformBrowserDynamic().bootstrapModule(AppModule).catch(err => console.log(err));

app.module.js：

import { BrowserModule } from '../../node_modules/@angular/platform-browser';
import { FormsModule } from '../../node_modules/@angular/forms';
import { HttpModule } from '../../node_modules/@angular/http';
import { RouterModule } from '../../node_modules/@angular/router';
import { NgModule } from '../../node_modules/@angular/core';

import { AppComponent, NwComponent, LoessComponent } from '../components';
import { routes } from '../routes';


export let AppModule = NgModule({
              imports: [ BrowserModule, FormsModule, HttpModule, RouterModule.forRoot(routes) ],
              declarations: [ AppComponent, NwComponent, LoessComponent ],
              bootstrap: [ AppComponent ]
            }).Class({
              constructor() {
                console.log("Module started");
              }
            });

路由/app.Broades.js：

import { provideRoutes } from '../../node_modules/@angular/router'
import { AppComponent, LoessComponent, NwComponent } from '../components';

export let routes = [
   { path: 'loess', component: LoessComponent },
   { path: 'nw', component: NwComponent },
   { path: '', component: AppComponent }, // default route
   { path: '**', redirectTo: '/home', pathMatch: 'full' } // 404
];

export let routesProvider = [
    provideRoutes(routes)
];

组件/app/app.Component.js：

import '../../../node_modules/jquery';
import { Component, Inject } from '../../../node_modules/@angular/core';
import { BootstrapLayout, sidebar } from '../../../node_modules/bootstrap-layout';
import { ROUTER_DIRECTIVES } from '../../../node_modules/@angular/router';

export let AppComponent =
        Component({
          selector: 'ml-index',
          templateUrl: '/client/js/src/components/app/app.html',
        })
        .Class({
          constructor() {
            this.title = "App Component";

            console.log("AppComponent init");
            sidebar.init('#ml-sidebar');
          }
        });

app.html：

<h1>{{title}}</h1>
<router-outlet></router-outlet>

我还使用webpack@1.13.2。下面是配置文件：

var webpack = require("./node_modules/webpack");
var HtmlWebpackPlugin = require("./node_modules/html-webpack-plugin")

module.exports = {
    context: __dirname,
    entry: {
        app: './src/app.js',
        vendor: './src/vendor.js'
    },
    module: {
        loaders: [
            { test: /\.js$/ , loader: 'babel-loader' },
            { test: /\.css$/, loaders: ['style-loader','css-loader','resolve-url'] },
            { test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)$/, loader : 'file?name=assets/[name].[hash].[ext]'},
            { test: /\.html$/, loader: 'html' },
        ]
    },
    output: {
        path: __dirname+'/bundle',
        filename: 'angular.[name].js'
    },
    plugins: [
        new webpack.optimize.CommonsChunkPlugin({
            name: ['app', 'vendor', 'polyfills']
        }),
        new HtmlWebpackPlugin({
            template: '../index.html'
        }),
        new webpack.ProvidePlugin({
            jQuery: 'jquery',
            $: 'jquery',
            jquery: 'jquery'
        }),
    ]
};

在提供了下面的工作解决方案之后，出现了另一个错误：Uncaught (in promise): SyntaxError: Failed to execute 'add' on 'DOMTokenList': The token provided must not be empty.。

下面是堆栈跟踪描述：

ErrorHandler.handleError    @   angular.vendor.js:2723
next    @   angular.vendor.js:3586
schedulerFn @   angular.vendor.js:3341
SafeSubscriber.__tryOrUnsub @   angular.vendor.js:4971
SafeSubscriber.next @   angular.vendor.js:4926
Subscriber._next    @   angular.vendor.js:4880
Subscriber.next @   angular.vendor.js:4844
Subject.next    @   angular.vendor.js:4451
EventEmitter.emit   @   angular.vendor.js:3341
onError @   angular.vendor.js:3421
onHandleError   @   angular.vendor.js:3349
ZoneDelegate.handleError    @   angular.vendor.js:24550
Zone.runGuarded @   angular.vendor.js:24468
_loop_1 @   angular.vendor.js:24709
drainMicroTaskQueue @   angular.vendor.js:24717
ZoneTask.invoke @   angular.vendor.js:24639
2016-10-16 00:04:40.401

我解决了。抱歉是我的错。错误是由app.html中路由的无效语法产生的。

javascript

angular

angular2-routing

ecmascript-5

angular2-components

回答 1

Stack Overflow用户

回答已采纳

发布于 2016-10-15 20:08:59

这是因为路径'‘被映射到AppComponent。

带线

platformBrowserDynamic().bootstrapModule(AppModule).catch(err => console.log(err));

当应用程序启动时，您正在告诉AppComponent渲染的角度。
AppComponent启动并检查当前路由。
查找“”作为当前路由，并在“”路由中加载AppComponent。因此，创建另一个AppComponent并将其加载到路由器出口。

解决方案：

创建类似HomePageComponent的内容并将其映射到“”路由。

票数 3

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/40063638

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