Probleme ajout a une base de donnee

package rrr;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;

public class AjoutTable {

	
	
	public static void main(String[] args) { 
		try{
			  Class.forName("org.postgresql.Driver");
		      System.out.println("Driver O.K.");

		      String url = "jdbc:postgresql://localhost/ClubVideo";
		      String user = "postgres";
		      String passwd = "projet";

		      Connection conn = DriverManager.getConnection(url, user, passwd);
		      System.out.println("Connexion effective !");         
		      PreparedStatement state = conn.prepareStatement("INSERT INTO realisateur (id realisateur,nom,prenom) VALUES(12,'SALMON', 'Dylan')");
		      
		     state.executeUpdate("INSERT INTO realisateur (id realisateur,nom,prenom) VALUES(12,'SALMON', 'Dylan')");
		     //afficheTable p = new afficheTable();
	       conn.close();
		}
		catch(Exception e)
		{
			System.out.println("erreur insertion");
		}

	}

}