Question

我有一个小型节点应用程序，正在对数据库进行某些操作，它在本地运行良好，但是当我尝试在云服务器中运行它时，它显示为正在运行，但无法在浏览器上看到任何内容

我正在使用express框架，并且服务器在centOS中运行。我尝试了许多解决方案，但没有任何效果

// app.js
const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
var cors = require('cors');
const http = require('http');

const routes1 = require('./routes/routes');

// initialize our express app
const app = express();

// const mongoDB = process.env.MONGODB_URI || dev_db_url;
mongoose.connect('<My mlab details>');
mongoose.Promise = global.Promise;
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'MongoDB connection error:'));

var publicDir = require('path').join(__dirname,'/uploads/images/products');
app.use(express.static(publicDir));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cors())


app.use('/api/routes', routes1);


let port = 80;

const server = http.createServer(app);

server.listen(port)

app.listen(port, () => {
    console.log('Server is up and running on port numner ' + port);
});

我希望端口能够正确侦听并存储在mlab服务器中

Answer 1

从您的代码中看，您似乎正在使用快递

您在这里表示快递

 const app = express();

只需将列表添加到应用

删除这两行代码

const server = http.createServer(app);

server.listen(port)

并使用这样的端口

let port = process.env.PORT || 8000;

它将解决您的问题

这是工作代码

// app.js
const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
var cors = require('cors');
const http = require('http');

const routes1 = require('./routes/routes');

// initialize our express app
const app = express();

// const mongoDB = process.env.MONGODB_URI || dev_db_url;
mongoose.connect('<My mlab details>');
mongoose.Promise = global.Promise;
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'MongoDB connection 
error:')); 

var publicDir = 
  require('path').join(__dirname,'/uploads/images/products');
  app.use(express.static(publicDir));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cors())


app.use('/api/routes', routes1);

let port = process.env.PORT || 8000;



app.listen(port, () => {
console.log('Server is up and running on port numner ' + port);
});

Node App正在服务器中运行，但在浏览器中尝试时无法运行

1 个答案: