我似乎無法能夠啓動一個服務的NodeJS

Question

我試圖啓動服務：

c:\MongoUni\Ex3\chapter3>node index.js 
express-session deprecated undefined resave option; provide resave option auth.js:48:37 
express-session deprecated undefined saveUninitialized option; provide saveUninitialized option auth.js:48:37 
Listening on port 3000! 

我得到這個錯誤

c:\MongoUni\Ex3\chapter3\node_modules\mongodb\lib\server.js:228 
     process.nextTick(function() { throw err; }) 
            ^
Error: connect ECONNREFUSED 127.0.0.1:27017 
    at Object.exports._errnoException (util.js:1022:11) 
    at exports._exceptionWithHostPort (util.js:1045:20) 
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1087:14) 

Answer 1

它看起來像你的應用程序正試圖通過端口27017連接到mongodb，但是您的機器上沒有運行mongodb。這裏是如何在Windows上安裝它的說明（我猜你正在基於文件路徑運行）https://docs.mongodb.com/manual/tutorial/install-mongodb-on-windows/