private static final String QUERYPERPAGESQL = "select * from (select m.*, rownum rn from (select * from music order by id) m where rownum <= ?) where rn > ?";

//該sql語句為每頁顯示的個數

public List queryPerPage(int page) {//page為當前處于第幾頁

List list = new ArrayList();

Connection conn = null;

PreparedStatement ps = null;

ResultSet rs = null;

int EndRow = page * CountPerPage;//CountPerPage為每頁要顯示的個數

int StartRow = (page-1) * CountPerPage;

conn = FactoryOracleDBConn.getOracleDBConn().getConnection();

try {

ps = conn.prepareStatement(this.QUERYPERPAGESQL);

ps.setInt(1, EndRow);

ps.setInt(2, StartRow);

rs = ps.executeQuery();

while(rs.next()){

Music music = new Music();

music.setAuthor(rs.getString("author"));

music.setId(rs.getInt("id"));

music.setName(rs.getString("name"));

music.setSinger(rs.getString("singer"));

list.add(music);

}

} catch (SQLException e) {

e.printStackTrace();

throw new MyRunTimeException("分頁顯示查詢失敗", e);

}finally{

FactoryOracleDBConn.getOracleDBConn().colse(conn, ps, rs);

}

return list;

}

總結

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