sb.append("select t1.*,t2.login_name from t_book_log t1 left join t_book_admin t2 on t2.login_id=t1.add_user where 1=1 ");
sb.append("select t1.*,t2.login_name,t3.user_name as name1,t4.user_name as name2 from t_book_log t1 left join t_book_admin t2 on t2.login_id=t1.add_user "+
" left join zb_user t3 on t3.id=t1.add_user left join zb_bgs_user t4 on t4.id=t1.add_user where 1=1 ");