Cannot get a connection as the driver manager is not properly initialized

Explanation

When encountering the error “cannot get a connection as the driver manager is not properly initialized”, it typically means that the driver manager’s initialization process has not been performed correctly.

The driver manager is responsible for managing the drivers used to connect to different databases. In order to establish a connection to a database, we need to ensure that the required database driver is loaded and registered with the driver manager.

To initialize the driver manager properly, follow these steps:

1. Make sure you have the appropriate database driver JAR file included in your project’s dependencies.
2. Explicitly load the driver class by calling Class.forName("com.database.DriverClass"). Replace com.database.DriverClass with the actual driver class corresponding to your database.
3. Establish a connection using the DriverManager.getConnection() method.

Here’s an example of initializing the driver manager for a PostgreSQL database:

    
      Class.forName("org.postgresql.Driver");
      Connection connection = DriverManager.getConnection("jdbc:postgresql://localhost:5432/mydatabase", "username", "password");
    
  

Make sure to replace org.postgresql.Driver with the actual driver class for your database, and provide the correct URL, username, and password for your specific database.