Question

我已经在我的localhost上成功运行了我的nodejs应用程序，但是当我在heroku上部署它时，构建成功，但是当我使用＆＃34; heroku logs＆＃时，我得到了＃34;应用程序错误＆＃34; 34;，它显示如下： console screenshot

我无法弄清楚我的应用程序出了什么问题，希望得到你的帮助，谢谢！

这是我的package.json

{
  "main": "index.js",
  "scripts": {
    "test": "mocha --harmony test",
    "start": "cross-env NODE_ENV=production pm2 start index.js --node-args='--harmony' --name 'adolt-blog'"
  },
  ...
  "dependencies": {
    "config-lite": "^1.5.0",
    "connect-flash": "^0.1.1",
    "connect-mongo": "^1.3.2",
    "cross-env": "^3.1.3",
    "ejs": "^2.5.2",
    "express": "^4.14.0",
    "express-formidable": "^1.0.0",
    "express-session": "^1.14.2",
    "express-winston": "^2.0.0",
    "marked": "^0.3.6",
    "moment": "^2.17.0",
    "mongolass": "^2.3.2",
    "objectid-to-timestamp": "^1.3.0",
    "sha1": "^1.1.1",
    "winston": "^2.3.0",
    "pm2": "^2.2.3",
    "mocha": "^3.2.0"
  }
}

和index.js

var path = require('path');
var express = require('express');
var session = require('express-session');
var MongoStore = require('connect-mongo')(session);
var flash = require('connect-flash');
var config = require('config-lite');
var routes = require('./routes');
var pkg = require('./package');
var winston = require('winston');
var expressWinston = require('express-winston');

var app = express();

app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.use(express.static(path.join(__dirname, 'public')));

app.use(session({
    name: config.session.key, 
    secret: config.session.secret, 
    cookie: {
        maxAge: config.session.maxAge 
    },
    store: new MongoStore({
        url: config.mongodb 
    }),
  saveUninitializedSession: true,
  resaveSession: true
}));

app.use(flash());
app.use(require('express-formidable')({
    uploadDir: path.join(__dirname, 'public/img'),
    keepExtensions: true 
}));

app.locals.blog = {
  // title: pkg.name,
  // description: pkg.description
  title: 'Adolt\'s Blog',
  description: 'Learn Node.js'
};

app.use(function (req, res, next) {
  res.locals.user = req.session.user;
  res.locals.success = req.flash('success').toString();
  res.locals.error = req.flash('error').toString();
  next();
});

app.use(expressWinston.logger({
  transports: [
    new (winston.transports.Console)({
      json: true,
      colorize: true
    }),
    new winston.transports.File({
      filename: 'logs/success.log'
    })
  ]
}));

routes(app);

app.use(expressWinston.errorLogger({
  transports: [
    new winston.transports.Console({
      json: true,
      colorize: true
    }),
    new winston.transports.File({
      filename: 'logs/error.log'
    })
  ]
}));

if (module.parent) {
  module.exports = app;
} else {
  const port = process.env.PORT;
  app.listen(port, function () {
    console.log(`${pkg.name} listening on port ${port}`);
  });
}

Answer 1

感谢@Lucas Katayama的帮助，问题终于解决了。

首先，根据use-pm2-with-cloud-providers添加main.js。

然后像这样修改Procfile

web: node main.js

最后，重建您的应用并查看它是否有效！

希望它可以提供帮助！祝你好运！

当我在heroku上部署我的nodejs应用程序时，构建成功但得到了一个＆＃34;应用程序错误＆＃34;

1 个答案: