【发布时间】：2021-03-24 10:14:59
【问题描述】：
当我运行 npm run dev:ssr 时，我的 Angular 应用程序完美运行，包括 SSR。
当我运行 npm run build:ssr 时，它会正确完成并创建我的 dist/PROJECT_NAME 文件夹。
然后当我尝试运行 npm run serve:ssr 时，服务器开始监听（也没有错误）。
当我访问 http://localhost:4000 时，应用程序运行良好，但没有发生 SSR。 我没有收到任何错误。
任何人都知道为什么会这样或者我该如何调试？
我正在使用 Angular v9。
** 3 月 25 日更新： 我将角度升级到版本 11。但仍然是相同的行为。开发：ssr 工作。生产 SSR 没有。
** 3 月 26 日更新：
我从https://angular.io/guide/universal 测试了示例应用程序
示例应用程序的工作方式完全相同。在 npm run serve:ssr 的生产模式下也不会发生 SSR
** 3 月 31 日更新： 根据要求，这里是 package.json 的内容
{
"name": "angular.io-example",
"version": "0.0.0",
"description": "Example project from an angular.io guide.",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e",
"dev:ssr": "ng run angular.io-example:serve-ssr",
"serve:ssr": "node dist/server/main.js",
"build:ssr": "ng build --prod && ng run angular.io-example:server:production",
"prerender": "ng run angular.io-example:prerender"
},
"private": true,
"dependencies": {
"@angular/animations": "~11.0.1",
"@angular/common": "~11.0.1",
"@angular/compiler": "~11.0.1",
"@angular/core": "~11.0.1",
"@angular/forms": "~11.0.1",
"@angular/platform-browser": "~11.0.1",
"@angular/platform-browser-dynamic": "~11.0.1",
"@angular/platform-server": "~11.0.1",
"@angular/router": "~11.0.1",
"@nguniversal/express-engine": "^11.0.0",
"angular-in-memory-web-api": "~0.11.0",
"express": "^4.15.2",
"rxjs": "~6.6.0",
"tslib": "^2.0.0",
"zone.js": "~0.10.3"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.1100.2",
"@angular/cli": "~11.0.2",
"@angular/compiler-cli": "~11.0.1",
"@nguniversal/builders": "^11.0.0",
"@types/express": "^4.17.8",
"@types/jasmine": "~3.6.0",
"@types/node": "^12.11.1",
"codelyzer": "^6.0.0",
"jasmine-core": "~3.6.0",
"jasmine-marbles": "~0.6.0",
"jasmine-spec-reporter": "~5.0.0",
"karma": "~5.1.0",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage": "~2.0.3",
"karma-jasmine": "~4.0.0",
"karma-jasmine-html-reporter": "^1.5.0",
"protractor": "~7.0.0",
"ts-node": "~8.3.0",
"tslint": "~6.1.0",
"typescript": "~4.0.3"
}
}
还有 angular.json
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"angular.io-example": {
"projectType": "application",
"schematics": {
"@schematics/angular:application": {
"strict": true
}
},
"root": "",
"sourceRoot": "src",
"prefix": "app",
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/browser",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.app.json",
"aot": true,
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.css"
],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"namedChunks": false,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "500kb",
"maximumError": "1mb"
},
{
"type": "anyComponentStyle",
"maximumWarning": "2kb",
"maximumError": "4kb"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "angular.io-example:build"
},
"configurations": {
"production": {
"browserTarget": "angular.io-example:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "angular.io-example:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.spec.json",
"karmaConfig": "karma.conf.js",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.css"
],
"scripts": []
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"tsconfig.app.json",
"tsconfig.spec.json",
"e2e/tsconfig.json"
],
"exclude": [
"**/node_modules/**"
]
}
},
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "angular.io-example:serve"
},
"configurations": {
"production": {
"devServerTarget": "angular.io-example:serve:production"
}
}
},
"server": {
"builder": "@angular-devkit/build-angular:server",
"options": {
"outputPath": "dist/server",
"main": "server.ts",
"tsConfig": "tsconfig.server.json"
},
"configurations": {
"production": {
"outputHashing": "media",
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"sourceMap": false,
"optimization": true
}
}
},
"serve-ssr": {
"builder": "@nguniversal/builders:ssr-dev-server",
"options": {
"browserTarget": "angular.io-example:build",
"serverTarget": "angular.io-example:server"
},
"configurations": {
"production": {
"browserTarget": "angular.io-example:build:production",
"serverTarget": "angular.io-example:server:production"
}
}
},
"prerender": {
"builder": "@nguniversal/builders:prerender",
"options": {
"browserTarget": "angular.io-example:build:production",
"serverTarget": "angular.io-example:server:production",
"routes": [
"/"
]
},
"configurations": {
"production": {}
}
}
}
}
},
"defaultProject": "angular.io-example"
}
两者都来自我使用的示例应用程序。在此处下载：https://angular.io/guide/universal
【问题讨论】：
-
你能再添加一些代码吗？比如 app.modules 或者 package json 和 angular.json
-
您是在浏览器中查看还是尝试过使用 cUrl？
-
只用浏览器源码验证。但刚刚测试过：与 cUrl 相同的故事......我真的希望有人能够提供帮助
-
“没有发生 SSR”是什么意思？没有发生什么，正在发生什么？
-
好吧，我的意思是服务器端渲染 (SSR) 不起作用。例如在抓取 html 源代码时，我希望每个页面上的元 html 标记都不同。使用“npm run dev:ssr”时完美运行。不使用 'npm run serve:ssr'
标签： angular server-side-rendering angular-universal