我正在尝试将有角项目部署到heroku。我完成所有步骤并得到错误： 无法加载资源：服务器以状态503（服务不可用）favicon.ico：1响应。是代码中的问题，还是我在heroku网站上设置错误。
{
"name": "flashcards",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng start",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e",
"preinstall": "npm install -g @angular/cli",
"postinstall": "ng build --aot --prod"
},
"private": true,
"dependencies": {
"@angular/animations": "^8.2.13",
"@angular/cdk": "^8.2.3",
"@angular/cli": "^8.3.17",
"@angular/common": "~8.2.5",
"@angular/compiler": "~8.2.5",
"@angular/compiler-cli": "^8.2.13",
"@angular/core": "~8.2.5",
"@angular/forms": "~8.2.5",
"@angular/material": "^8.2.3",
"@angular/platform-browser": "~8.2.5",
"@angular/platform-browser-dynamic": "~8.2.5",
"@angular/router": "~8.2.5",
"@types/crypto-js": "^3.1.43",
"crypto-js": "^3.1.9-1",
"express": "^4.17.1",
"hammerjs": "^2.0.8",
"jwt-token-encrypt": "^1.0.4",
"material-design-icons": "^3.0.1",
"path": "^0.12.7",
"rxjs": "~6.4.0",
"tslib": "^1.10.0",
"typescript": "~3.5.3",
"zone.js": "~0.9.1"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.803.4",
"@angular/cli": "^8.3.17",
"@angular/compiler-cli": "^8.2.13",
"@angular/language-service": "~8.2.5",
"@types/jasmine": "~3.3.8",
"@types/jasminewd2": "~2.0.3",
"@types/node": "~8.9.4",
"codelyzer": "^5.0.0",
"enhanced-resolve": "^3.3.0",
"jasmine-core": "~3.4.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~4.1.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~2.0.1",
"karma-jasmine-html-reporter": "^1.4.0",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.15.0",
"typescript": "~3.5.3"
},
"engines": {
"node": "10.16.0",
"npm": "6.9.0"
}
}
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"Flashcards": {
"projectType": "application",
"schematics": {},
"root": "",
"sourceRoot": "src",
"prefix": "app",
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/Flashcards",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.app.json",
"aot": false,
"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,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "2mb",
"maximumError": "5mb"
},
{
"type": "anyComponentStyle",
"maximumWarning": "6kb",
"maximumError": "10kb"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "Flashcards:build"
},
"configurations": {
"production": {
"browserTarget": "Flashcards:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "Flashcards: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": "Flashcards:serve"
},
"configurations": {
"production": {
"devServerTarget": "Flashcards:serve:production"
}
}
}
}
}},
"defaultProject": "Flashcards"
}
我正在尝试将有角项目部署到heroku。我完成所有步骤并得到错误： 无法加载资源：服务器以状态503（服务不可用）favicon.ico：1响应。是代码中的问题，还是我在heroku网站上设置错误。
答案 0 :(得分：0)
Heroku需要一个Express服务器才能在生产模式下运行Angular应用程序。在Angular应用程序的根文件夹中打开一个命令窗口。执行以下命令以安装Express服务器。
npm install express --save
在项目文件夹中创建server.js文件：-
const express = require('express');
const app = express();
const path = require('path');
const port = process.env.PORT || 4200;
const server = require('http').Server(app);
// Serve only the static files form the angularapp directory
app.use(express.static(__dirname + '/your-application-name'));
app.get('/*', function(req,res) {
res.sendFile(path.join(__dirname+'/your-application-name/index.html'));
});
// Start the app by listening on the default Heroku port
server.listen(port, function () {
console.log("App running on port " + port);
})
更新package.json文件中的脚本。
"start": "node server.js",
"postinstall": "ng build --output-path your-application-name --aot --prod",
确保.gitignore文件中未提及dist文件。