How to Connect Java and MongoDB

by vigneshchennai74 Updated: Mar 27, 2023

Guide Kit

Connecting Java and MongoDB allows you to create Java applications that interact with MongoDB, a popular NoSQL document-oriented database. By connecting Java and MongoDB, you can store, retrieve, and manipulate data in your MongoDB database using Java code.

To connect Java and MongoDB, you must use a MongoDB Java driver, which provides a set of APIs for interacting with MongoDB from Java. Using this driver, you can connect to a MongoDB server, create databases and collections, and perform CRUD (create, read, update, delete) operations on your data.

Knowing how to connect Java and MongoDB can be helpful if you are building applications that need to work with large amounts of data, require high availability, and/or have high scalability requirements. For example, you could use this knowledge to build a web application that stores user data in a MongoDB database or to create a data processing pipeline that uses MongoDB as a data store.

Preview of the output that you will get on running this code from your IDE

Code

In this solution we have used MongoClient. The MongoClient is a class in the MongoDB Java driver that provides a client interface for connecting to a MongoDB server

Connecting to MongoDB in Java

JavaLines of Code : 43License : Strong Copyleft (CC BY-SA 4.0)

import com.mongodb.DB;
import com.mongodb.MongoClient;
import com.mongodb.ServerAddress;

public class MongoDemo {

    public static void main(String[] args) {
        ServerAddress serverAddress = new ServerAddress("http://localhost", 27017);
        MongoClient mongoClient = new MongoClient(serverAddress);
        DB db = mongoClient.getDB("test");
    }
}

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>MongoDBExample</groupId>
    <artifactId>MongoDBExample</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.mongodb/mongo-java-driver -->
        <dependency>
            <groupId>org.mongodb</groupId>
            <artifactId>mongo-java-driver</artifactId>
            <version>3.7.0</version>
        </dependency>
    </dependencies>
</project>

Instructions

Create a Java project in Eclipse by creating a simple Java-Maven project.
To include the MongoDB Java driver in your application, start by defining the dependency in your Maven project. Copy and paste the following dependency to your pom.xml file

Note:-

In line eight Instead of using "http://localhost" as the host, you should use "localhost" as the host. The correct format for the server address should be "host:port".

I hope you found this useful. I have added the version information in the following sections.

I found this code snippet by searching for Connecting to MongoDB in Java in kandi. You can try any such use case!

Environment Tested

Tested this solution in the following versions. Be mindful of changes when working with other versions.

Eclipse Version: 2022-09 (4.25.0)
Mongodb version 6.0.4

With the help of this code we can connect Java and MongoDB. This process also facilities an easy-to-use, hassle-free method to create a hands-on working version of code which would help us to connect java and Database

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