查询数据库时不就可以实现吗
select a,b from aaa;while(rs.next())
{
String aa = rs.getString(a)+"="+rs.getString(b);
ht.add(rs.getStirng(a),aa);
}ht为Hashtable
select a,b from aaa;while(rs.next())
{
String aa = rs.getString(a)+"="+rs.getString(b);
ht.add(rs.getStirng(a),aa);
}ht为Hashtable
select a,b from aaa;while(rs.next())
{
String rs.getString(a)=rs.getString(b);
}