Problemas no Tomcat - Não reconhece as classes que eu crio

package classes;

import java.sql.*;

/**
 *
 * @author anderson
 */
public class postgre_connect {
    // Variaveis
    public Connection conn;
    public String host,porta,database,user,passwd,msg;

    /** Creates a new instance of postgre_connect */
    public postgre_connect() {
	// Informando os dados para conectar ao banco (g1ti)
	host = "blablabla";
	porta = "blablabla";
	database = "blablabla";
	user = "blablabla";
	passwd = "blablabla";
        
        // Inicinando a conexao
        try {
            Class.forName("org.postgresql.Driver");
	    conn = DriverManager.getConnection("jdbc:postgresql://"+host+":"+porta+"/"+database,user,passwd);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    
}