import java.net.UnknownHostException; import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.DBCursor; import com.mongodb.DBObject; import com.mongodb.Mongo; public class HelloMongoDB { private static Mongo mg; private static DB db; private static DBCollection col; public static void main(String[] args) throws UnknownHostException { HelloMongoDB hello = new HelloMongoDB(); if (mg == null) { mg = new Mongo(“127.0.0.1”, 27017); } if ..

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import java.net.UnknownHostException; import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.DBCursor; import com.mongodb.DBObject; import com.mongodb.Mongo; public class HelloMongoDB { private static Mongo mg; private static DB db; private static DBCollection col; public static void main(String[] args) throws UnknownHostException { HelloMongoDB hello = new HelloMongoDB(); if (mg == null) { mg = new Mongo(“127.0.0.1”, 27017); } if ..

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mongod –dbpath /usr/local/var/mongodb 2018-07-03T10:50:12.444+0800 I CONTROL [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify –sslDisabledProtocols ‘none’ 2018-07-03T10:50:12.457+0800 I CONTROL [initandlisten] MongoDB starting : pid=44555 port=27017 dbpath=/usr/local/var/mongodb 64-bit host=huhaifengdeMacBook-Pro.local 2018-07-03T10:50:12.457+0800 I CONTROL [initandlisten] db version v4.0.0 2018-07-03T10:50:12.457+0800 I CONTROL [initandlisten] git version: 3b07af3d4f471ae89e8186d33bbb1d5259597d51 2018-07-03T10:50:12.457+0800 I CONTROL [initandlisten] allocator: system 2018-07-03T10:50:12.458+0800 I CONTROL [initandlisten] modules: ..

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It was installed directly with MSI, and there was a problem during startup. How do you solve it? The following is my log file: C:UsersAdministrator>mongoMongoDB shell version v3.4.7connecting to: mongodb://127.0.0.1:270172017-08-16T23:45:23.316+0800 W NETWORK [thread1] Failed to connect to 127.0.:27017 after 5000ms milliseconds, giving up.2017-08-16T23:45:23.317+0800 E QUERY [thread1] Error: couldn’t connect tover 127.0.0.1:27017, connection attempt failed :connect@src/mongo/shell/mongo.js:237:13@(connect):1:6exception: ..

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Hello, everyone, why did mongodb delete mongoD. Lock when starting Mongo the next day and then all the data was lost? What is the reason? Solution First of all,mongod.lockYesmongoA lock file created in the hard disk after the server starts, if you exit normallymongodService, even if the file still exists, it will not affect the ..

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At present, there are many mp3 files with the following file names 1-music1.mp3 2-music2.mp3 3-music3.mp3 4-music4.mp3 5-music5.mp3 ….. 10-music.mp3 How to remove the prefix in batch. The title was wrong. The title was batch renaming.Batch renaming can be usedlsAnd pipes andrenameCommandSimilar to the following bulk delete command. ls | grep “^[0-9]\{1,2\}-music.mp3″ | xargs -d”\n” rmhttp://superuser.com/questions/392872/delete-files-with-regular-..

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