database.java

来自「用jbuilder开发的在线书店源码.前台用户页面的功能:注册,浏览,下订单,取」· Java 代码 · 共 39 行

package bookshop.util;
/**
 * <p>数据库连接专用包 </p>
 * <p>Copyright: wxy Copyright (c) 2004</p>
 * <p>Company:juanjuan book shop online </p>
 * @by :wxy
 * @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("org.gjt.mm.mysql.Driver").newInstance();
        String url ="jdbc:mysql://localhost/BookStore?user=wxy&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();
          }
        }
}