private void mBookShowSizeActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_mBookShowSizeActionPerformed
        tPage.setRowCount(0);
        List rsdata = oDB.getList("select sum(length(p.content)) * 3 / 1024 as ss, p.bookid as bid, b.name as bname from page as p, book as b where b.id=p.bookid group by p.bookid order by ss, p.bookid");
        Iterator itr = rsdata.iterator();
        int allSize = 0;
        int nowSize = 0;
        while (itr.hasNext()) {
            HashMap item = (HashMap) itr.next();
            nowSize = Integer.valueOf(item.get("ss").toString());
            allSize += nowSize ;
            tPage.addRow(new Object[]{item.get("bname"), nowSize + " k", 0, item.get("bid"), 0});
        }
        msg("★　共占用空间(K): " + allSize);
    }