🚀 Eine Java-Anwendung auf IBM i (AS/400) deployen und starten

Java auf IBM i — © phonlamaiphoto – stock.adobe.com

In diesem Beitrag zeige ich dir, wie du eine einfache Java-Anwendung erstellst, in ein JAR-File verpackst und auf einem IBM i System (früher als AS/400 bekannt) ausführst.

Unser Beispielprogramm gibt alle Umgebungsvariablen auf der Konsole aus. Wenn du beim Start Parameter übergibst, zeigt es nur die gewünschten Schlüssel an – praktisch zum Testen oder Debuggen auf IBM i.

   java.util.Map;

  public class EnvVariablesPrinter {

     public static void main(String[] args) {

        Map env = System.getenv();

        if (args.length > 0) {

           for (String key : args) {

              String value = env.get(key);

              if (value != null) {

                 System.out.println(key + " = " + value);

              } else {

                 System.out.println("Kein Wert für Schlüssel: " + key);

              }

           }

        } else {

           for (String key : env.keySet()) {

              System.out.println(key + " = " + env.get(key));

           }

        }

     }

  }

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🚀 Eine Java-Anwendung auf IBM i (AS/400) deployen und starten

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