How can I connect to MongoDB server using JAVA from OpenShift?

Question

I have created a MongoDB instance in OpenShift. I can connect to it via RockMongo, which is a service offered by OpenShift.

Answer 1

OpenShift provides environment variables, which you should use to connect to your MongoDB.

• OPENSHIFT_MONGODB_DB_HOST The MongoDB IP address
• OPENSHIFT_MONGODB_DB_PORT The MongoDB port
• OPENSHIFT_MONGODB_DB_USERNAME The MongoDB username
• OPENSHIFT_MONGODB_DB_PASSWORD The MongoDB password
• OPENSHIFT_MONGODB_DB_URL The MongoDB connection URL (e.g. mongodb://<username>:<password>@<hostname>:<port>/)

I'm using one line of code to connect to the database:

new MongoClient(new MongoClientURI(System.getenv("OPENSHIFT_MONGODB_DB_URL")));