运行npm后运行build：ssr和npm run serve：ssr，该应用程序将永远加载-等待本地主机和源不重新加载。控制台中未显示任何错误，该应用仅在控制台中运行，但浏览器中未呈现任何视图。
index.html
<!doctype html>
<html lang="en" >
<head>
<meta charset="utf-8">
<title>Online store</title>
<base href="/">
</head>
<body>
<app-root></app-root>
<noscript>Please enable JavaScript to continue using this application.</noscript>
<!-- Custom script -->
<script>
</script>
<!-- Google Analytics Integration -->
<script>
(function (i, s, o, g, r, a, m) {
i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function () {
(i[r].q = i[r].q || []).push(arguments)
}, i[r].l = 1 * new Date(); a = s.createElement(o),
m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m)
})(window, document, 'script', 'https://www.google-analytics.com/analytics.js', 'ga');
</script>
<!-- End Google Analytics Integration -->
<!-- Facebook Pixel Code -->
<script>
!function (f, b, e, v, n, t, s) {
if (f.fbq) return; n = f.fbq = function () {
n.callMethod ?
n.callMethod.apply(n, arguments) : n.queue.push(arguments)
};
if (!f._fbq) f._fbq = n; n.push = n; n.loaded = !0; n.version = '2.0';
n.queue = []; t = b.createElement(e); t.async = !0;
t.src = v; s = b.getElementsByTagName(e)[0];
s.parentNode.insertBefore(t, s)
}(window, document, 'script',
'https://connect.facebook.net/en_US/fbevents.js');
</script>
<noscript>
<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id="
+localStorage.getItem('facebookPixelId')+"&ev=PageView&noscript=1" />
</noscript>
<!-- End Facebook Pixel Code -->
</body>
</html>
package.json
"@angular/core": "^7.2.7",
"@angular/platform-server": "^7.2.7",
"@angular/pwa": "^0.12.4",
"@angular/service-worker": "^7.2.7",
"@nguniversal/express-engine": "^7.1.1",
"@nguniversal/module-map-ngfactory-loader": "^7.1.1",
server.ts
...
app.engine('html', (_, options, callback) => {
const engine = ngExpressEngine({
bootstrap: AppServerModuleNgFactory,
providers: [
provideModuleMap(LAZY_MODULE_MAP),
{provide: 'host', useFactory: () => options.req.get('host'), deps: []}
]
});
engine(_, options, callback);
});
app.set('view engine', 'html');
app.set('views', join(DIST_FOLDER, 'browser'));
// Serve static files from /browser
app.get('*.*', express.static(join(DIST_FOLDER, 'browser'), {
maxAge: '1y'
}));
// All regular routes use the Universal engine
// app.get('*', (req, res) => {
// res.render('index', {req});
// });
app.get('*', (req, res) => { res.sendFile( join(DIST_FOLDER, 'browser' , 'index.html'), {req}); });
tsconfig.server.json
{
"extends": "./tsconfig.app.json",
"compilerOptions": {
"outDir": "../out-tsc/app-server",
"baseUrl": "."
},
"angularCompilerOptions": {
"entryModule": "app/app.server.module#AppServerModule"
}
}
angular.json
....
"server": {
"builder": "@angular-devkit/build-angular:server",
"options": {
"outputPath": "dist/server",
"main": "src/main.server.ts",
"tsConfig": "src/tsconfig.server.json"
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
]
}
}
}
....
package.json
"scripts": {
...
"compile:server": "webpack --config webpack.server.config.js --progress --colors",
"serve:ssr": "node dist/server",
"build:ssr": "npm run build:client-and-server-bundles && npm run compile:server",
"build:client-and-server-bundles": "ng build --prod && ng run my-project:server:production",
"ssr-only": "ng run my-project:server:production && npm run compile:server && node dist/server"
....
}
我的项目有什么问题？
您正在服务器端使用document和localStorage，而在ssr上不可用。这可能就是为什么页面无法加载的原因。