You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%E6%9D%8E%E9%95%BF%E7%A6%8F' at line 1
select bclassid from ***_enewsclass where classid=%E6%9D%8E%E9%95%BF%E7%A6%8F