NodeJS项目成功部署到Heroku，但应用程序崩溃
我正在尝试构build一个应用程序，并将其部署到heroku，但在浏览器中出现错误：
Application error An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details. 在heroku日志中，我得到：
2017-05-22T03:58:35.925318+00:00 app[api]: Release v19 created by user xxx@gmail.com 2017-05-22T03:58:35.925318+00:00 app[api]: Deploy 53f249eb by user xxx@gmail.com 2017-05-22T03:58:08.000000+00:00 app[api]: Build succeeded 2017-05-22T03:58:36.628543+00:00 heroku[web.1]: State changed from crashed to starting 2017-05-22T03:58:42.060016+00:00 heroku[web.1]: Starting process with command `: node server.js` 2017-05-22T03:58:44.343952+00:00 heroku[web.1]: State changed from starting to crashed 2017-05-22T03:58:44.330459+00:00 heroku[web.1]: Process exited with status 0 2017-05-22T03:58:45.036725+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=myappfrontend.herokuapp.com request_id=c13cbc90-b663-4202-bf23-fdd7839bd11a fwd="124.13.47.105" dyno= connect= service= status=503 bytes= protocol=https 2017-05-22T03:58:46.355457+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=myappfrontend.herokuapp.com request_id=10d85673-140b-4510-a5cb-b6b3db20e1a7 fwd="124.13.47.105" dyno= connect= service= status=503 bytes= protocol=https
在部署我得到：
remote: Building source: remote: remote: -----> Node.js app detected remote: remote: -----> Creating runtime environment remote: remote: NPM_CONFIG_LOGLEVEL=error remote: NPM_CONFIG_PRODUCTION=false remote: NODE_VERBOSE=false remote: NODE_ENV=production remote: NODE_MODULES_CACHE=true remote: remote: -----> Installing binaries remote: engines.node (package.json): 7.10.0 remote: engines.npm (package.json): 4.2.0 remote: remote: Downloading and installing node 7.10.0... remote: npm 4.2.0 already installed with node remote: remote: -----> Restoring cache remote: Loading 2 from cacheDirectories (default): remote: - node_modules remote: - bower_components (not cached - skipping) remote: remote: -----> Building dependencies remote: Installing node modules (package.json) remote: remote: -----> Caching build remote: Clearing previous node cache remote: Saving 2 cacheDirectories (default): remote: - node_modules remote: - bower_components (nothing to cache) remote: remote: -----> Build succeeded! remote: -----> Discovering process types remote: Procfile declares types -> web remote: remote: -----> Compressing... remote: Done: 47.1M remote: -----> Launching... remote: Released v20 remote: https://myappfrontend.herokuapp.com/ deployed to Heroku remote: remote: Verifying deploy... done.
我有一个Procfile：web：node server.js
我的server.js：
"use strict"; var express = require('express'), bodyParser = require('body-parser'), fs = require('fs'), app = express(), customers = JSON.parse(fs.readFileSync('data/customers.json', 'utf-8')), states = JSON.parse(fs.readFileSync('data/states.json', 'utf-8')); app.use(bodyParser.urlencoded({ extended: true })); app.use(bodyParser.json()); //Would normally copy necessary scripts into src folder (via grunt/gulp) but serving //node_modules directly to keep everything as simple as possible app.use('/node_modules', express.static(__dirname + '/node_modules')); //The src folder has our static resources (index.html, css, images) app.use(express.static(__dirname + '/src')); app.post('/api/auth/login', (req, res) => { var userLogin = req.body; //Add "real" auth here. Simulating it by returning a simple boolean. res.json(true); }); app.post('/api/auth/logout', (req, res) => { res.json(true); }); // redirect all others to the index (HTML5 history) app.all('/*', function(req, res) { res.sendFile(__dirname + '/src/index.html'); }); app.set('port', (process.env.PORT || 5000)); app.listen(app.get('port'), function() { console.log('Node app is running on port', app.get('port')); });
最后是我的package.json：
{ "name": "angular-jumpstart", "author": "Dan Wahlin", "version": "2.0.0", "repository": "https://github.com/danwahlin/angular-jumpstart", "scripts": { "clean": "del-cli \"src/app/**/*.js\" \"src/app/**/*.js.map\" \"src/devDist\" \"src/dist\"", "build": "npm run clean && webpack --progress --watch", "tsc": "tsc", "tsc:w": "tsc -w", "start:nodemon": "tsc && concurrently \"tsc -w\" \"nodemon server.js\" ", "start": "tsc && concurrently \"tsc -w\" \"node server.js\" " }, "license": "ISC", "dependencies": { "@angular/common": "4.0.0", "@angular/compiler": "4.0.0", "@angular/compiler-cli": "4.0.0", "@angular/core": "4.0.0", "@angular/forms": "4.0.0", "@angular/http": "4.0.0", "@angular/platform-browser": "4.0.0", "@angular/platform-browser-dynamic": "4.0.0", "@angular/router": "4.0.0", "@angular/upgrade": "4.0.0", "@angular/platform-server": "4.0.0", "@angular/tsc-wrapped": "4.0.0", "@angular/animations": "4.0.0", "systemjs": "0.19.47", "core-js": "2.4.1", "rxjs": "5.2.0", "zone.js": "0.8.5", "express": "4.15.2", "body-parser": "1.17.1" }, "devDependencies": { "@types/node": "7.0.11", "@types/google-maps": "3.2.0", "concurrently": "3.4.0", "lite-server": "2.3.0", "typescript": "2.2.1", "opn": "4.0.2", "del-cli": "0.2.1", "webpack": "2.3.2", "html-webpack-plugin": "2.28.0", "webpack-merge": "4.1.0", "extract-text-webpack-plugin": "2.1.0", "angular2-template-loader": "0.6.2", "angular-router-loader": "0.5.0", "awesome-typescript-loader": "3.1.2", "css-loader": "0.27.3", "to-string-loader": "1.1.5", "raw-loader": "0.5.1", "style-loader": "0.16.0", "@ngtools/webpack": "1.3.0" }, "engines": { "node": "7.10.0", "npm": "4.2.0" } }
任何想法，为什么它不工作？ Heroku日志不显示有用的错误消息。
您的代码无法读取data/customers.json文件，因为该文件不存在。 一旦你把这个文件和你的代码一起上传到Heroku，你的服务器就会运行。
fs.js:583 return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode); ^ Error: ENOENT: no such file or directory, open 'data/customers.json' at Object.fs.openSync (fs.js:583:18) at Object.fs.readFileSync (fs.js:490:33) at Object.<anonymous> (/tmp/test.js:6:33) at Module._compile (module.js:571:32) at Object.Module._extensions..js (module.js:580:10) at Module.load (module.js:488:32) at tryModuleLoad (module.js:447:12) at Function.Module._load (module.js:439:3) at Module.runMain (module.js:605:10) at run (bootstrap_node.js:425:7)