我已将 @nguniversal/express-engine 添加到我的角度应用程序中,它只显示 CSS 导入。我在每个组件 (PAGE) 中设置了一些元描述标签来为爬虫优化应用程序,但我无法在视图源中看到它们,也看不到 HTML 内容。这是查看源代码的屏幕截图。
我没有调整@nguniversal/express-engine 执行的初始更新。 我期待看到我在每个页面视图源上设置的 html 内容和元标记。 有我的 SSR 设置: app.server.module.ts :
import { NgModule } from '@angular/core';
import { ServerModule } from '@angular/platform-server';
import { AppModule } from './app.module';
import { AppComponent } from './app.component';
@NgModule({
imports: [
AppModule,
ServerModule,
],
bootstrap: [AppComponent],
})
export class AppServerModule {}
**app.module.ts:**
@NgModule({
declarations: [
AppComponent,
],
imports: [
CommonModule,
BrowserModule.withServerTransition({ appId: 'serverApp' }),
BrowserAnimationsModule,
AppRoutingModule,
HttpClientModule,
SharedModule,
],
providers: [],
bootstrap: [AppComponent],
})
export class AppModule { }
**main.server.ts :**
/***************************************************************************************************
* Initialize the server environment - for example, adding DOM built-in types to the global scope.
*
* NOTE:
* This import must come before any imports (direct or transitive) that rely on DOM built-ins being
* available, such as `@angular/elements`.
*/
import '@angular/platform-server/init';
import { enableProdMode } from '@angular/core';
import { environment } from './environments/environment';
if (environment.production) {
enableProdMode();
}
export { AppServerModule } from './app/app.server.module';
export { renderModule } from '@angular/platform-server';
**服务器.ts:**
import 'zone.js/node';
import { APP_BASE_HREF } from '@angular/common';
import { ngExpressEngine } from '@nguniversal/express-engine';
import * as express from 'express';
import { existsSync } from 'fs';
import { join } from 'path';
import { AppServerModule } from './src/main.server';
// The Express app is exported so that it can be used by serverless Functions.
export function app(): express.Express {
const server = express();
const distFolder = join(process.cwd(), 'dist/DiarAlkhibra/browser');
const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';
// Our Universal express-engine (found @ https://github.com/angular/universal/tree/main/modules/express-engine)
server.engine('html', ngExpressEngine({
bootstrap: AppServerModule,
}));
server.set('view engine', 'html');
server.set('views', distFolder);
// Example Express Rest API endpoints
// server.get('/api/**', (req, res) => { });
// Serve static files from /browser
server.get('*.*', express.static(distFolder, {
maxAge: '1y'
}));
// All regular routes use the Universal engine
server.get('*', (req, res) => {
res.render(indexHtml, { req, providers: [{ provide: APP_BASE_HREF, useValue: req.baseUrl }] });
});
return server;
}
function run(): void {
const port = process.env['PORT'] || 4000;
// Start up the Node server
const server = app();
server.listen(port, () => {
console.log(`Node Express server listening on http://localhost:${port}`);
});
}
// Webpack will replace 'require' with '__webpack_require__'
// '__non_webpack_require__' is a proxy to Node 'require'
// The below code is to ensure that the server is run only when not requiring the bundle.
declare const __non_webpack_require__: NodeRequire;
const mainModule = __non_webpack_require__.main;
const moduleFilename = mainModule && mainModule.filename || '';
if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
run();
}
export * from './src/main.server';