2017-06-06 99 views
0

我正在用NodeJS创建一个聊天应用程序,并且我想部署到Heroku。但是,通过使用Github部署,我得到一个错误:An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details.。有谁知道发生了什么事?如何将NodeJS应用程序部署到Heroku?

Here is some code to see what I have done.

{ 
    "name": "chat", 
    "version": "0.0.0", 
    "private": true, 
    "scripts": { 
    "start": "node ./lib/index.js", 
    "test": "jasmine" 
    }, 
    "dependencies": { 
    "express": "~4.13.1", 
    "firebase": "^3.9.0", 
    "request-promise": "^2.0.1", 
    "socket.io": "^1.4.5" 
    }, 
    "devDependencies": { 
    "jasmine-sinon": "^0.4.0", 
    "jscs": "^2.11.0", 
    "proxyquire": "^1.7.4", 
    "rewire": "^2.5.1", 
    "sinon": "^1.17.3" 
    } 
} 

index.js (Server)

var express = require('express'); 
var app = express(); 
var path = require('path'); 
var http = require('http').Server(app); 
var io = require('socket.io')(http); 

var routes = require('./routes'); 
var chats = require('./chat'); 



app.use(express.static(path.join(__dirname, '../public'))); 

routes.load(app); 
chats.load(io); 


var port = process.env.PORT || 3000; 
app.listen(port); 
console.log('Server is listening at port:' + port); 
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查看'heroku logs -t',它通常会显示更多关于您的应用崩溃原因的信息。 –

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我可以告诉你我的github项目,看看我做错了吗?我想要做的就是在heroku中使用Github部署 –

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当然,您也可以通过本指南,因为它可以帮助您将GH部署集成到Heroku中https://devcenter.heroku.com/articles/github-integration –

回答

1

我得到了应用程序在Heroku的工作。你的代码中的问题是你没有设置正确的端口让heroku工作。在代码中你提供你做

var port = process.env.PORT || 3000; 

然而,在GitHub上的项目你硬编码端口3000

http.listen(3000, function() { 
    console.log('listening on *:3000'); 
}); 

相反,你需要做的是允许设置正确的端口Heroku的定义端口或默认3000的发展,像这样..

var process = require('process'); 

var port = process.env.PORT || 3000; 
http.listen(port, function() { 
    console.log("Server is listening on port: " + port); 
}); 

一旦你的,部署到Heroku的,你会看到你的应用程序运行。

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它的工作!非常感谢你! –

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