Question

I have nodejs project running on centos 7. I'm trying to run my nodejs project with the command node start.js aswell tried sudo node start.js but tends to be hanging up, i included a screenshot too, which you can find there: http://prntscr.com/g4ogcf Can anybody help me with this? I'm quite clueless about that because it doesn't return any errors aswell.

My start.js application code:

const app = require('express')();
const fs = require('fs');
const server = require('http').Server(app);

const cors = require('cors');
const express = require('express');
const Database = require('./Database.js');
const db = new Database();

const cfg = require('./config/config.json');
const io = require('socket.io')(cfg.client.socket_port);
const Router = require('./Router')(db, io);
app.listen(cfg.client.server_port);
app.use(cors());
app.get('/', (req, res) => {
    fs.readFile(`${__dirname}/../public/client/app/index.html`, (err, data) => {
        if (err)
            throw err;
        res.send(data.toString())
    });
});
app.get('/media', (req, res) => {
    if (req.query.cfg) {
        res.set('Content-Type', 'application/javascript');
        fs.readFile(`${__dirname}/config/config.json`, (err, data) => {
            if (err)
                throw err;
            res.send(`export default ${JSON.stringify(JSON.parse(data).client)}`);
        });
    }
    res.set('Content-Type', 'image/jpeg');
    if (req.query.avatar) {
        db.getAvatarImg(req.query.avatar).then(x => {
            var img = x[0] ? x[0].img : '';

            const data = img.replace(/^data:image\/\w+;base64,/, "");
            const buf = new Buffer(data, 'base64');
            res.send(buf);
        });

    }
    if (req.query.background) {
        db.getBackgroundImg(req.query.background).then(x => {
            var img = x[0] ? x[0].img : '';
            const data = img.replace(/^data:image\/\w+;base64,/, "");
            const buf = new Buffer(data, 'base64');
            res.send(buf);
        });

    }
    if (req.query.post) {
        db.getPostImg(req.query.post).then(x => {
            var img = x[0] ? x[0].img : '';
            const data = img.replace(/^data:image\/\w+;base64,/, "");
            const buf = new Buffer(data, 'base64');
            res.send(buf);
        });

    }

});
app.use(express.static(`${__dirname}/../public/`));

Answer 1

把

console.time('app started');

在所有require语句和

之前

console.timeEnd('app started');

在start.js代码的末尾。借助此功能，您可以检查您的应用程序是否已成功挂起或初始化。

Answer 2

程序没有任何问题。

只需将app.listen(cfg.client.server_port);更新为

app.listen(cfg.client.server_port, ()=>{
   console.log("server started at port "+cfg.client.server_port);
});

这将在控制台上登录，告诉您服务器已启动。

Nodejs project not starting/hangs

2 个答案: