Conversion from String to MongoDB ObjectID

Question

I tried converting my String ID to MongoDB ObjectID

public class relevancy_test extends  Object implements Comparable {
    public static voi         


        

Answer 1

Here is an example that will serve you:

public List findAlls() {
        List personas = new ArrayList();
        MongoCollection collection = baseDato.database.getCollection("persona", BasicDBObject.class);
        try (MongoCursor cursor = collection.find().iterator()) {
            while (cursor.hasNext()) {

                BasicDBObject theObj = cursor.next();

                String _id = ((ObjectId) theObj.get("_id")).toHexString();
                String nombre = (String) theObj.get("nombre");
                String apellido = (String) theObj.get("apellido");
                String usuario = (String) theObj.get("usuario");
                String contrasenna = (String) theObj.get("contrasenna");

                Persona persona = new Persona();
                persona.setNombre(nombre);
                persona.setApellido(apellido);
                persona.setUsuario(usuario);
                persona.setContrasenna(contrasenna);

                personas.add(persona);

            }
        }
        return personas;
    }