this class monitors a folder and in particular it monitors the info file. In the infoReading() Method, the data inside the info file is read into a json object whenever the there is a change to the file

WatchFolder.java

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardWatchEventKinds;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;
import java.util.Properties;

import org.json.JSONObject;
import org.json.Property;

public class WatchFolder {
	
	public static void main(String args[]) {	
	watchFolder();
	}
	public static void watchFolder() {
		final String FOLDER_NAME = "C:/Users/HERMAN MUHEREZA/Documents/Batch057";
		final String FILE_NAME = "C:/Users/HERMAN MUHEREZA/Documents/Batch057/info";

		try {System.out.println("Watching directory for changes in the info file");
			WatchService watchService = FileSystems.getDefault().newWatchService();
			Path directory = Paths.get(FOLDER_NAME);
			WatchKey watchKey = directory.register(watchService, StandardWatchEventKinds.ENTRY_CREATE,
					StandardWatchEventKinds.ENTRY_MODIFY, StandardWatchEventKinds.ENTRY_DELETE);

			while (true) {
				for (WatchEvent<?> event : watchKey.pollEvents()) {
					WatchEvent<Path> pathEvent = (WatchEvent<Path>) event;
					Path fileName = pathEvent.context();
					WatchEvent.Kind<?> kind = event.kind();

					if (kind == StandardWatchEventKinds.ENTRY_CREATE) {
						System.out.println("Info file has been created : " + fileName);
						infoFileReading(FILE_NAME);
					}

					if (kind == StandardWatchEventKinds.ENTRY_DELETE) {
						System.out.println("The info file has been deleted: " + fileName);
					}
					
					if (kind == StandardWatchEventKinds.ENTRY_MODIFY) {
						infoFileReading(FILE_NAME);
					}

				}

				boolean valid = watchKey.reset();
				if (!valid) {
					break;
				}

			}

		} catch (Exception e) {
			e.printStackTrace();
		}

	}
	public static void infoFileReading(String filename) {
		try (InputStream input = new FileInputStream(filename)) {
            Properties infoFilepropeProperties = new Properties();
            infoFilepropeProperties.load(input);
            
            System.out.println("....changing properties into a json object....");
            JSONObject jsonObject = Property.toJSONObject(infoFilepropeProperties);
            System.out.println(jsonObject);

        } catch (IOException ex) {
            ex.printStackTrace();
        }
	}

}

https://www.tutorialspoint.com/how-to-insert-store-json-array-into-a-database-using-jdbc