Angular2延迟加载模块:如何使用SystemJS Builder创建构建包?

sma*_*use 8 lazy-loading gulp systemjs systemjs-builder angular

我正在使用Angular2和SystemJS来创建Web应用程序.我的应用程序和路由器配置中有一些模块,我使用延迟加载来打开它们.

这是我的应用程序的路由文件,延迟加载两个模块:

const appRoutes: Routes = [
    { path: '', component: MainComponent,
        canActivate: [AuthGuard],
        children: [
            { path: 'dashboard', component: DashboardComponent },
            { path: 'first-section', loadChildren: 'app/modules/FIRST-SECTION/first-section.module' },
            { path: 'second-section', loadChildren: 'app/modules/SECOND-SECTION/second-section.module' },
            { path: 'documents', component: DocumentsComponent },
            { path: 'users', component: UsersComponent },
            { path: '', redirectTo: 'dashboard', pathMatch: 'full' }
        ]
    }
];
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我使用Gulp为开发服务器和生产构建创建任务.对于构建,我使用SystemJS Builder为整个应用程序创建缩小的JS文件.

gulp.task('app-bundle', function() {
    var builder = new Builder('src', 'src/systemjs.config.js');

    return builder.buildStatic('app/main.js', 'build/scripts/app.min.js', { minify: true });
});
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但是......如果我尝试在构建包上运行服务器,那么当它试图运行延迟加载的模块时应用程序不起作用.它给了我以下错误:

GET http://127.0.0.1:8080/app/modules/FIRST-SECTION/first-section.module 404 (Not Found)
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这是我的systemjs.config.js档案:

(function (global) {
    System.config({
        paths: {
            'npm:': './node_modules/',
        },
        map: {
            app: 'app',
            '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
            '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
            '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
            '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
            '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
            '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
            '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
            '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
            '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
            'rxjs': 'npm:rxjs',
            'lodash': 'npm:lodash/lodash.min.js',
            'jquery': 'npm:jquery/dist/jquery.min.js',
        },
        packages: {
            app: { main: './main.js', defaultExtension: 'js' },
            rxjs: { defaultExtension: 'js' },
        }
    });
})(this);
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编辑:

如在带有静态包的SystemJs Builder站点上所述,我们不需要SystemJ来加载模块.实际上我正在创建一个静态包(buildStatic而不是bundle),但由于我排除了SystemJs,似乎没有其他方法来延迟加载模块.那么如何bundle使用延迟加载模块创建生产构建但没有SystemJS(systemjs.config.js文件dist夹中没有文件)?我看到WebPack可以做到......

Abi*_*ure 1

看看是否可以通过提供所需模块的映射来安抚 system.js。所以当system.js找到路径时modules/FIRST-SECTION/first-section.module时,你可以告诉它:嘿,你能将此路径映射到modules/FIRST-SECTION/first-section.module.js而不在控制台中尖叫吗? 。希望这可以帮助 。

(function (global) {
    System.config({
        paths: {
            'npm:': './node_modules/',
        },
        map: {
            app: 'app',
            'modules/FIRST-SECTION/first-section.module':'modules/FIRST-SECTION/first-section.module.js',
          .........................
          your other mappings here
          .........................
            'lodash': 'npm:lodash/lodash.min.js',
            'jquery': 'npm:jquery/dist/jquery.min.js',
        },
        packages: {
            app: { main: './main.js', defaultExtension: 'js' },
            rxjs: { defaultExtension: 'js' },
        }
    });
})(this);
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