我尝试使用Angular Universal从这个链接https://angular.io/guide/universal来呈现我的Angular 7应用程序的SSR。我认为我已经按照文档的指导完成了一切,因为我能够查看页面源代码并看到渲染到页面中的app.component中的所有内容。但是,我无法呈现
router-outlet
标签内的任何路由。
我已经将我的应用简化为完全遵循文档所说的做法。我在文档中读到有关确保ModuleMapLoaderModule
位于app.server.module中以使懒加载正常工作的内容。这在angular-cli命令用于universal时是默认的,所以我不知道出了什么问题。
app.server.module
import { NgModule } from '@angular/core';
import { ServerModule } from '@angular/platform-server';
import { ModuleMapLoaderModule } from '@nguniversal/module-map-ngfactory-loader';
import { AppComponent } from './app.component';
import { AppModule } from './app.module';
@NgModule({
imports: [
AppModule,
ServerModule,
ModuleMapLoaderModule,
],
bootstrap: [AppComponent],
})
export class AppServerModule {}
tsconfig.server.json
"extends": "./tsconfig.app.json",
"compilerOptions": {
"outDir": "../out-tsc/app-server",
},
"angularCompilerOptions": {
"entryModule": "app/app.server.module#AppServerModule"
}
}
server.ts
import 'zone.js/dist/zone-node';
import { enableProdMode } from '@angular/core';
// Express Engine
import { ngExpressEngine } from '@nguniversal/express-engine';
// Import module map for lazy loading
import { provideModuleMap } from '@nguniversal/module-map-ngfactory-loader';
import * as express from 'express';
import { join } from 'path';
// Faster server renders w/ Prod mode (dev mode never needed)
enableProdMode();
// Express server
const app = express();
const PORT = process.env.PORT || 4000;
const DIST_FOLDER = join(process.cwd(), 'browser');
// * NOTE :: leave this as require() since this file is built Dynamically from webpack
const { AppServerModuleNgFactory, LAZY_MODULE_MAP } = require('./dist/server/main');
// Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
app.engine('html', ngExpressEngine({
bootstrap: AppServerModuleNgFactory,
providers: [
provideModuleMap(LAZY_MODULE_MAP)
]
}));
app.set('view engine', 'html');
app.set('views', DIST_FOLDER);
// Serve static files from /browser
app.get('*.*', express.static(DIST_FOLDER, {
maxAge: '1y'
}));
// All regular routes use the Universal engine
app.get('*', (req, res) => {
res.render(join(DIST_FOLDER, 'index.html'), { req });
});
// Start up the Node server
app.listen(PORT, () => {
console.log(`Node Express server listening on http://localhost:${PORT}`);
});
渲染后的输出
<html lang="en">
<head>
<base href="/">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- ...Rendered CSS styles... -->
<body>
<app-root _nghost-sc0="" ng-version="7.2.15">
<!-- ...Header code that has been rendered... -->
<router-outlet _ngcontent-sc0=""></router-outlet> <!-- This is where I am expecting the content of the route to be -->
<!-- ...Footer code that has been rendered... -->
</app-root>
</body>
</html>
app.routing.module.ts
// Angular Imports
// Pages
// ...Page Imports..
const routes: Routes = [
{ path: '', component: HomePageComponent, pathMatch: 'full' },
{ path: 'events/:id', component: EventDetailPageComponent }, // This is the detail page I am testing with
{ path: 'unknown-error', component: UnknownErrorPageComponent },
{ path: '404', component: NotFoundPageComponent },
{ path: '**', redirectTo: '404' }
];
@NgModule({
imports: [
CommonModule,
RouterModule.forRoot(routes),
],
exports: [
RouterModule,
]
})
export class AppRoutingModule { }
我一直尝试查找Angular 7的准确文档,却毫无进展,如有帮助将不胜感激!谢谢