public ArticleOperate() { this.con = ConDB.getConnection(); }
public DataController() { db = new ConDB(); }
public MyClassOperate() { this.con = ConDB.getConnection(); }
public PopOperate() { this.con = ConDB.getConnection(); }
public CommentOperate() { this.con = ConDB.getConnection(); }
public ArticleOperate() { this.con = ConDB.getConnection();//在构造函数中连接数据库! }