mongo-java-driver -3.2.2学习笔记-02-MongoDB Driver Admin Quick Tour

MongoClient mongoClient = new MongoClient();
MongoDatabase database = mongoClient.getDatabase("mydb");
MongoCollection<Document> collection = database.getCollection("test");

for (String name: mongoClient.listDatabaseNames()) {
System.out.println(name);
}

mongoClient.getDatabase("databaseToBeDropped").drop();

database.createCollection("cappedCollection",
new CreateCollectionOptions().capped(true).sizeInBytes(0x100000));

for (String name : database.listCollectionNames()) {
System.out.println(name);
}

collection.drop();

// create an ascending index on the "i" field
collection.createIndex(Indexes.ascending("i"));
// create a text index on the "content" field
coll.createIndex(Indexes.text("content"));

for (final Document index : collection.listIndexes()) {
System.out.println(index.toJson());
}

Document buildInfo = database.runCommand(new Document("buildInfo", 1));
System.out.println(buildInfo);