com.mongodb.client.MongoClient 和 com.mongodb.MongoClient 的区别

Question

I'm a bit new in MongoDB and I got confused with MongoClient classes as there are two in different packages ( com.mongodb.client.MongoClient and com.mongodb.MongoClient ). And what I have seen is that they have more or less the same purpose but I could be wrong.

What are the differences between both classes? Is one of them recommended over the other?

Answer 1

Use com.mongodb.client.MongoClient.create() (as of 3.7 or later), legacy api com.mongodb.MongoClient() is deprecated.

A com.mongodb.client.MongoClient instance represents a pool of connections to the database; you will only need one instance of class MongoClient even with multiple threads.

Reference : http://mongodb.github.io/mongo-java-driver/3.12/driver/tutorials/connect-to-mongodb/

com.mongodb.client.MongoClient is added since 3.7 release use below code to get instance with new API:

    MongoClient mongoClient = MongoClients.create()