Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

Checking DB Connection Using Java

DZone's Guide to

Checking DB Connection Using Java

· Java Zone
Free Resource

Try Okta to add social login, MFA, and OpenID Connect support to your Java app in minutes. Create a free developer account today and never build auth again.

For the sake of completeness, here is a Java version of the Groovy post to test your Oracle Database connection.  

package atest;
import java.sql.*;
/**
 * Run arguments sample:
 * jdbc:oracle:thin:@localhost:1521:XE system mypassword123 oracle.jdbc.driver.OracleDriver
 */
public class DbConn {
    public static void main(String[] args) throws Exception {
        String url = args[0];
        String username = args[1];
        String password = args[2];
        String driver = args[3];

        Class.forName(driver);
        Connection conn = DriverManager.getConnection(url, username, password);
        try {
            Statement statement = conn.createStatement();
            ResultSet rs = statement.executeQuery("SELECT SYSDATE FROM DUAL");
            while(rs.next()) {
                System.out.println(rs.getObject(1));
            }
        } finally {
            conn.close();
        }
    }
}

Build and launch faster with Okta’s user management API. Register today for the free forever developer edition!

Topics:

Published at DZone with permission of Zemian Deng, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}