我用connect-mongo持久化Session没问题,使用mongoose连接MongoDB的时候,报以下错误
events.js:72 throw er; // Unhandled 'error' event ^ Error: failed to connect to [localhost:27017] at null. (D:\Program Files\nodejs\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\server.js:540:74) at EventEmitter.emit (events.js:106:17) at null. (D:\Program Files\nodejs\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\connection_pool.js:140:15) at EventEmitter.emit (events.js:98:17) at Socket. (D:\Program Files\nodejs\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\connection.js:478:10) at Socket.EventEmitter.emit (events.js:95:17) at net.js:441:14 at process._tickCallback (node.js:415:13) at Function.Module.runMain (module.js:499:11) at startup (node.js:119:16)