Mongo.getDBs()

Description描述

Mongo.getDBs()

Returns information about all available databases. 返回有关所有可用数据库的信息。Mongo.getDBs() uses the listDatabases command.使用listDatabases命令。

The Mongo.getDBs() method doesn't take any parameters.Mongo.getDBs()方法不接受任何参数。

Example示例

To list the available databases and metadata for the local MongoDB instance:要列出本地MongoDB实例的可用数据库和元数据，请执行以下操作：

db.getMongo().getDBs()

The db.getMongo() method returns the connection to the current MongoDB instance. db.getMongo()方法返回到当前MongoDB实例的连接。The Mongo.getDBs() output resembles:Mongo.getDBs()输出类似于：

{
 databases: [
   { name: 'admin', sizeOnDisk: Long("225280"), empty: false },
   { name: 'config', sizeOnDisk: Long("212992"), empty: false },
   { name: 'local', sizeOnDisk: Long("2400256"), empty: false },
   { name: 'test', sizeOnDisk: Long("303104"), empty: false }
 ],
 totalSize: Long("3141632"),
 totalSizeMb: Long("2"),
 ok: 1,
 '$clusterTime': {
   clusterTime: Timestamp({ t: 1640186473, i: 1 }),
   signature: {
     hash: Binary(Buffer.from("0000000000000000000000000000000000000000", "hex"), 0),
     keyId: Long("0")
   }
 },
 operationTime: Timestamp({ t: 1640186473, i: 1 })
 }

The databases are listed in the highlighted lines.数据库列在突出显示的行中。