ResultSet haveUser = Dao.query("select * from tb_spinfo where spname='"
+ quanCheng.getText().trim() + "'");
怎么加一个
"select * from tb_spinfo where gg='"
+ Guige.getText().trim() + "'"
与运算
Dao.query("select * from tb_spinfo where spname='"+ quanCheng.getText().trim() + "'and gg='"+ Guige.getText().trim() + "' ")