Need for mongo-java-driver with Spring-data-MongoDB

Question

I am new to mongoDB and Spring so want some clarification.

I went through many tutorials some just use

<dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-mongodb</artifactId>
        <version>1.7.2.RELEASE</version>
</dependency>

while others use :

<dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-mongodb</artifactId>
        <version>1.7.2.RELEASE</version>
</dependency>
<dependency>
        <groupId>org.mongodb</groupId>
        <artifactId>mongo-java-driver</artifactId>
        <version>2.11.0</version>
</dependency>

So what is the use of mongo-java-driver ? and why is it required if we can connect to mongoDB without it?

Answer 1

You only combine them when

1. You are using Spring Data Framework (otherwise, you'd only need the Mongo driver)

2. You want to use a Mongo Driver other than 2.13.0, which is included already (referring to your first POM)

See Compile dependencies

By the way 1.7.2.RELEASE was released 2015, so best go upgrade