java sql语句不执行 但在查询编辑器中可以查出来 语句如下: select c.name,a.stu_class,a.stu_name,a.stu_sex,e.name,a.birthdate,a.bative_place,a.education,d.jparty_time from application as a join activists as b join college as c join party as d join national as e where a.app_id=b.app_id and a.col_id=c.col_id and d.act_id=b.act_id and a.nat_id=e.nat_id