package njutgrid.util;/** * <p>數據庫連接專用包 </p> * <p>Copyright: njutgrid Copyright (c) 2004</p> * <p>Company:njct </p> * @by :grid * @version 1.0 */import java.sql.*;public class DataBase {  public Connection conn;  public Statement stmt;  public ResultSet rs=null;  public String sqlStr="";  public DataBase() {    this.connect();  } public boolean connect(){      try{        Class.forName("com.mysql.jdbc.Driver").newInstance();        String url ="jdbc:mysql://localhost/njutgrid?user=root&password=800309&useUnicode=true&characterEncoding=8859_1";        conn=DriverManager.getConnection(url);        stmt = conn.createStatement ();       }catch(Exception ee){        System.out.println("connect db error:"+ee.getMessage());        return false;       }      return true;    } public static void main(String[] args) {     try{            DataBase db = new DataBase();            db.connect();          }catch(Exception e){            e.printStackTrace();          }        }}