Angular 使用 Webpack - loadChildren 找不到模块

Question

我正在尝试加载我购买的与 Angular4 一起使用的管理员，但是我在使用 Webpack 将项目配置为运行时遇到了一些问题：

const routes: Routes = [
{
    "path": "",
    "component": ThemeComponent,
    "canActivate": [AuthGuard],
    "children": [
        {
            "path": "index",
            "loadChildren": './pages/default/index/index.module#IndexModule'
        }
    ],
    {
        "path": "**",
        "redirectTo": "404",
        "pathMatch": "full"
    }
];

@NgModule({
    imports: [RouterModule.forChild(routes)],
    exports: [RouterModule]
})
export class ThemeRoutingModule {}

当我运行应用程序时，我在控制台中收到此消息：

NavigationError {id: 1, url: "/", error: Error: Cannot find module './pages/default/index/index.module'. at eval (eval at ./src/main/weba…} error : Error: Cannot find module './pages/default/index/index.module'. at eval (eval at ./src/main/webapp/admin/app lazy recursive (http://localhost:8080/admin/app/main.bundle.js:6:1), :5:9) at ZoneDelegate.invoke (webpack-internal:///./node_modules/zone.js/dist/zone.js:391:26) at Object.onInvoke (webpack-internal:///./node_modules/@angular/core/@angular/core.es5.js:4094:33) at ZoneDelegate.invoke (webpack-internal:///./node_modules/zone.js/dist/zone.js:390:32) at Zone.run (webpack-internal:///./node_modules/zone.js/dist/zone.js:141:43) at eval (webpack-internal:///./node_modules/zone.js/dist/zone.js:831:57) at ZoneDelegate.invokeTask (webpack-internal:///./node_modules/zone.js/dist/zone.js:424:31) at Object.onInvokeTask (webpack-internal:///./node_modules/@angular/core/@angular/core.es5.js:4085:33) at ZoneDelegate.invokeTask (webpack-internal:///./node_modules/zone.js/dist/zone.js:423:36) at Zone.runTask (webpack-internal:///./node_modules/zone.js/dist/zone.js:191:47) id : 1 url : "/"

我知道模块的路径是正确的，因为我可以在同一文件中毫无问题地导入此模块:

import {IndexModule} from './pages/default/index/index.module';

我的 Webpack 配置使用它来处理打字稿：

module: {
    rules: [{
        test: /\.ts$/,
        enforce: 'pre',
        loaders: 'tslint-loader',
        exclude: ['node_modules', new RegExp('reflect-metadata\' + path.sep + 'Reflect\.ts')]
    },
    {
        test: /\.ts$/,
        loaders: [
            'awesome-typescript-loader',
            'angular-router-loader?debug=true',
            'angular2-template-loader'
        ]
    }

我做错了什么我没有注意到吗？

Answer 1

延迟加载模块的位置应从 app 文件夹开始。尝试像这样将 app 关键字添加到您的字符串中

loadChildren: 'app/theme/pages/default/index/index.module#IndexModule'},

另外我觉得你这里少了一个大括号

{
    "path": "",
    "component": ThemeComponent,
    "canActivate": [AuthGuard],
    "children": [
        {
            "path": "index",
             loadChildren: 'app/theme/pages/default/index/index.module#IndexModule'},\

        }
    ]
} <-------- ,

Answer 2

如果您使用的是 webpack，则需要 angular-router-loader：

loaders: [
  {
    test: /\.ts$/,
    loaders: [
      'awesome-typescript-loader',
      'angular-router-loader'
    ]
  }
]

创建一个加载额外路由的模块：

const routeModule:ModuleWithProviders = RouterModule.forChild(routes);
@NgModule({
    imports:      [ routeModule ],
    declarations: [ ... ]
})
export class InboxModule{ }

创建你的路由并引用延迟加载的模块（路径是相对的）：

import { Routes } from '@angular/router';

export const routes: Routes = [
  { path: 'index', loadChildren: './theme/pages/default/index/index.module#IndexModule' }
];

Answer 3

我发现我可以使用函数导入，而不是使用模块路径导入。这样就成功了：

{
    "path": "index",
    "loadChildren": () => IndexModule
}

Angular 使用 Webpack - loadChildren 找不到模块

Angular with Webpack - loadChildren can't find the module

lazy-loading

typescript

webpack

angular