[求助]??如何计算记录数量??
如何计算记录数量?? rs.getRow()为什么不行??
try{
stmt = conn.createStatement();
rs = stmt.executeQuery("select * from TreeExample where f_fatherid='1' order by f_id");
System.out.println(rs.getRow());//为什么为0啊,数据库里有记录????
while(rs.next())
{
System.out.println(rs.getString("f_treename"));
}
for(int i=0;i<rs.getRow();i++)
{
}
}
catch(Exception e)
{
e.printStackTrace();
}