?? op_bookclass.java~3~
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package bookshop.run;/** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2004</p> * <p>Company: </p> * @author not attributable * @version 1.0 */import java.util.*;import bookshop.util.*;import bookshop.book.*;import java.sql.*;public class op_bookclass extends DataBase{ public op_bookclass() { } private Vector classlist; //圖書類別向量數組 public Vector getClasslist() { return classlist; } public String getBookClassSql() { sqlStr = "select id,classname from bookclass order by id"; return sqlStr; } public boolean seachBookClass() throws Exception { int id = 0; String classname = ""; int rscount = 0; try { DataBase db = new DataBase(); db.connect(); stmt = db.conn.createStatement (); rs = stmt.executeQuery(getBookClassSql()); rscount = stmt.getMaxRows(); classlist = new Vector(rscount+1); classlist.clear(); while (rs.next()){ id = rs.getInt("id"); classname = rs.getString("classname"); bookclass bc = new bookclass(id,classname); classlist.addElement(bc); } rs.close(); return true; } catch (SQLException sqle){ System.out.println(sqle); return false; } } };?? 快捷鍵說明
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