Mongoose无法连接到本地主机：MongoError：无法连接到服务器
我正在从Github https://github.com/MessagingBots/MessengerBot下载回购，我知道JS代码是好的。
我有一个configuration文件指示数据库的URL为“mongodb：//127.0.0.1：27017 / messenger”。 （我还没有创build数据库）
我在Heroku上有节点应用程序，但Heroku Logs每次都在mongodb连接上失败。
2016-12-02T06:23:31.636339+00:00 app[web.1]: mongodb://127.0.0.1:27017/messenger 2016-12-02T06:23:31.672354+00:00 app[web.1]: CALLBACK URL IS 2016-12-02T06:23:31.672434+00:00 app[web.1]: https://cool-scrubland-89690.herokuapp.com/messages/receive/ 2016-12-02T06:23:31.683394+00:00 app[web.1]: students 2016-12-02T06:23:31.701863+00:00 app[web.1]: listening on port 3124 2016-12-02T06:23:31.702052+00:00 app[web.1]: Application running at port 48594 2016-12-02T06:23:31.717752+00:00 app[web.1]: 2016-12-02T06:23:31.717764+00:00 app[web.1]: /app/node_modules/mongoose/node_modules/mongodb/lib/server.js:261 2016-12-02T06:23:31.717766+00:00 app[web.1]: process.nextTick(function() { throw err; }) 2016-12-02T06:23:31.717767+00:00 app[web.1]: ^ 2016-12-02T06:23:31.718744+00:00 app[web.1]: MongoError: failed to connect to server [127.0.0.1:27017] on first connect 2016-12-02T06:23:31.718746+00:00 app[web.1]: at Pool.<anonymous> (/app/node_modules/mongoose/node_modules/mongodb-core/lib/topologies/server.js:313:35) 2016-12-02T06:23:31.718747+00:00 app[web.1]: at emitOne (events.js:96:13) 2016-12-02T06:23:31.718747+00:00 app[web.1]: at Pool.emit (events.js:188:7) 2016-12-02T06:23:31.718748+00:00 app[web.1]: at Connection.<anonymous> (/app/node_modules/mongoose/node_modules/mongodb-core/lib/connection/pool.js:271:12) 2016-12-02T06:23:31.718749+00:00 app[web.1]: at Connection.g (events.js:291:16) 2016-12-02T06:23:31.718750+00:00 app[web.1]: at emitTwo (events.js:106:13) 2016-12-02T06:23:31.718750+00:00 app[web.1]: at Connection.emit (events.js:191:7) 2016-12-02T06:23:31.718751+00:00 app[web.1]: at Socket.<anonymous> (/app/node_modules/mongoose/node_modules/mongodb-core/lib/connection/connection.js:165:49) 2016-12-02T06:23:31.718752+00:00 app[web.1]: at Socket.g (events.js:291:16) 2016-12-02T06:23:31.718752+00:00 app[web.1]: at emitOne (events.js:96:13) 2016-12-02T06:23:31.718753+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2016-12-02T06:23:31.718754+00:00 app[web.1]: at emitErrorNT (net.js:1276:8) 2016-12-02T06:23:31.718754+00:00 app[web.1]: at _combinedTickCallback (internal/process/next_tick.js:74:11) 2016-12-02T06:23:31.718755+00:00 app[web.1]: at process._tickCallback (internal/process/next_tick.js:98:9) 2016-12-02T06:24:24.832476+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch 2016-12-02T06:24:24.832543+00:00 heroku[web.1]: Stopping process with SIGKILL 2016-12-02T06:24:24.958931+00:00 heroku[web.1]: State changed from starting to crashed 2016-12-02T06:24:24.949820+00:00 heroku[web.1]: Process exited with status 137
我有一个mongod实例运行。 mongod正确连接到本地主机，并保持稳定
2016-12-02T14:02:26.733+0700 I CONTROL [initandlisten] MongoDB starting : pid=2706 port=27017 dbpath=/data/db 64-bit host=ME.local 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] db version v3.2.11 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] git version: 009580ad490190ba33d1c6253ebd8d91808923e4 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2j 26 Sep 2016 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] allocator: system 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] modules: none 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] build environment: 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] distarch: x86_64 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] target_arch: x86_64 2016-12-02T14:02:26.735+0700 I CONTROL [initandlisten] options: {} 2016-12-02T14:02:26.738+0700 I - [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'. 2016-12-02T14:02:26.739+0700 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=4G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0), 2016-12-02T14:02:27.758+0700 I CONTROL [initandlisten] 2016-12-02T14:02:27.759+0700 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. Number of files is 256, should be at least 1000 2016-12-02T14:02:27.763+0700 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker 2016-12-02T14:02:27.763+0700 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/diagnostic.data' 2016-12-02T14:02:27.767+0700 I NETWORK [initandlisten] waiting for connections on port 27017
这个问题可能与mongoose有关。
任何人都可以帮助我？
看看是否有一个旧的locking文件存在，如果存在，比通过sudo删除它rm /var/lib/mongodb/mongod.lock看看是否适用于你sudo mongod – 修复和（sudo启动mongodb或sudo服务mongodb启动）
您不必在您的mongoose连接调用中精确地使用mongodb：//：
mongoose.connect("localhost:27017/mydbname");