?? database.java~13~
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package bookshop.util;/** * <p>數(shù)據(jù)專用包 </p> * <p>負責(zé)數(shù)據(jù)庫的連接，數(shù)據(jù)的插入更新和刪除 </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); System.out.print("7777777777"); stmt = conn.createStatement (); /*System.out.print("44444422222"); rs=stmt.executeQuery("select * from BookAdmin"); while(rs.next()){ System.out.print("名稱: "+rs.getString(1)); System.out.println();*/ // } }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(); } }}?? 快捷鍵說明
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