postgresqlHow do I use the PostgreSQL JDBC driver with Maven?

Using the PostgreSQL JDBC driver with Maven is very simple. First, you need to add the driver to your pom.xml file as a Maven dependency:

<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>42.2.2</version>
</dependency>

Then, you can use the driver in your Java code. For example, the following code connects to a PostgreSQL database and prints out the version of the database:

// Load the JDBC driver
Class.forName("org.postgresql.Driver");

// Establish a connection
Connection conn = DriverManager.getConnection("jdbc:postgresql://hostname:port/dbname", "username", "password");

// Print out the version of the database
try (Statement stmt = conn.createStatement();
     ResultSet rs = stmt.executeQuery("SELECT version()")) {
    if (rs.next()) {
        System.out.println(rs.getString(1));
    }
}

The output of the above code is the version of the PostgreSQL database, for example:

PostgreSQL 11.2

For more information on using the PostgreSQL JDBC driver with Maven, see the official documentation.

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