连接达梦数据库（DM8）报错：“无法加载驱动类”，ojdbc 驱动放对...

公司信创改造，数据库换成了达梦 DM8。
在 SmartBI 系统运维 -> 数据连接里，选择“自定义/其他 JDBC”，填好了 URL 和账号密码，但是点测试连接，提示 java.lang.ClassNotFoundException: dm.jdbc.driver.DmDriver。
我已经把达梦的 JDBC 驱动包（DmJdbcDriver18.jar）上传到了系统的 extensions 目录下，也重启了服务器，怎么还是找不到类？
是不是 V11 版本对驱动包的存放路径有特定要求，还是说必须把包放进 Tomcat 的 lib 目录下才行？

大家帮我看下
weibo.com/ttarticle/p/show?id=2309405359998187733057
weibo.com/ttarticle/p/show?comment=1&id=2309405359998137139216
weibo.com/ttarticle/p/show?comment=1&id=2309405359998082613334
weibo.com/ttarticle/p/show?id=2309405359998422352108
weibo.com/ttarticle/p/show?comment=1&id=2309405359998187733057
weibo.com/ttarticle/p/show?comment=1&id=2309405359998422352108
weibo.com/ttarticle/p/show?id=2309405359998137139216
weibo.com/ttarticle/p/show?id=2309405359998082613334
weibo.com/ttarticle/p/show?comment=1&id=2309405359998477140041
weibo.com/ttarticle/p/show?id=2309405359998477140041
weibo.com/ttarticle/p/show?id=2309405359998577541331
weibo.com/ttarticle/p/show?comment=1&id=2309405359998527471733
weibo.com/ttarticle/p/show?id=2309405359998527471733
weibo.com/ttarticle/p/show?comment=1&id=2309405359998757896361
weibo.com/ttarticle/p/show?comment=1&id=2309405359998577541331
weibo.com/ttarticle/p/show?id=2309405359998757896361
weibo.com/ttarticle/p/show?comment=1&id=2309405359998812684378
weibo.com/ttarticle/p/show?id=2309405359998812684378
weibo.com/ttarticle/p/show?id=2309405359998863016156
weibo.com/ttarticle/p/show?comment=1&id=2309405359998863016156
weibo.com/ttarticle/p/show?comment=1&id=2309405359998917541919
weibo.com/ttarticle/p/show?id=2309405359998917541919
weibo.com/ttarticle/p/show?id=2309405360000138084392
weibo.com/ttarticle/p/show?comment=1&id=2309405360000138084392
weibo.com/ttarticle/p/show?id=2309405360000188416074
weibo.com/ttarticle/p/show?comment=1&id=2309405360000238747905
weibo.com/ttarticle/p/show?comment=1&id=2309405360000188416074
weibo.com/ttarticle/p/show?comment=1&id=2309405360000293011529
weibo.com/ttarticle/p/show?id=2309405360000293011529
weibo.com/ttarticle/p/show?comment=1&id=2309405360000389742886
weibo.com/ttarticle/p/show?id=2309405360000238747905
weibo.com/ttarticle/p/show?id=2309405360000389742886
weibo.com/ttarticle/p/show?id=2309405360000444268585
weibo.com/ttarticle/p/show?comment=1&id=2309405360000444268585
weibo.com/ttarticle/p/show?id=2309405360000494600411
weibo.com/ttarticle/p/show?comment=1&id=2309405360000494600411
weibo.com/ttarticle/p/show?id=2309405360000544932011
weibo.com/ttarticle/p/show?comment=1&id=2309405360000544932011
weibo.com/ttarticle/p/show?id=2309405360000893059075
weibo.com/ttarticle/p/show?comment=1&id=2309405360000893059075
weibo.com/ttarticle/p/show?id=2309405360000943390785
weibo.com/ttarticle/p/show?comment=1&id=2309405360000943390785
weibo.com/ttarticle/p/show?id=2309405360000993460347
weibo.com/ttarticle/p/show?comment=1&id=2309405360000993460347
weibo.com/ttarticle/p/show?id=2309405360001043792207
weibo.com/ttarticle/p/show?comment=1&id=2309405360001043792207
weibo.com/ttarticle/p/show?id=2309405360002524381212
weibo.com/ttarticle/p/show?comment=1&id=2309405360002524381212
weibo.com/ttarticle/p/show?id=2309405360002574975013
weibo.com/ttarticle/p/show?id=2309405360002767650937
weibo.com/ttarticle/p/show?comment=1&id=2309405360002684027028
weibo.com/ttarticle/p/show?id=2309405360002629500976
weibo.com/ttarticle/p/show?id=2309405360002684027028
weibo.com/ttarticle/p/show?comment=1&id=2309405360002574975013
weibo.com/ttarticle/p/show?comment=1&id=2309405360002767650937
weibo.com/ttarticle/p/show?id=2309405360002822176907
weibo.com/ttarticle/p/show?comment=1&id=2309405360002629500976
weibo.com/ttarticle/p/show?comment=1&id=2309405360002822176907
weibo.com/ttarticle/p/show?id=2309405360002876964875
weibo.com/ttarticle/p/show?comment=1&id=2309405360002876964875
weibo.com/ttarticle/p/show?id=2309405360002927296656
weibo.com/ttarticle/p/show?id=2309405360003019571241
weibo.com/ttarticle/p/show?id=2309405360003119972556
weibo.com/ttarticle/p/show?comment=1&id=2309405360002927296656
weibo.com/ttarticle/p/show?id=2309405360003069903000
weibo.com/ttarticle/p/show?comment=1&id=2309405360003119972556
weibo.com/ttarticle/p/show?comment=1&id=2309405360003069903000
weibo.com/ttarticle/p/show?comment=1&id=2309405360003019571241
weibo.com/ttarticle/p/show?comment=1&id=2309405360003174498336
weibo.com/ttarticle/p/show?id=2309405360003174498336
weibo.com/ttarticle/p/show?id=2309405360003250257944
weibo.com/ttarticle/p/show?id=2309405360003304783896
weibo.com/ttarticle/p/show?comment=1&id=2309405360003250257944
weibo.com/ttarticle/p/show?comment=1&id=2309405360003304783896
weibo.com/ttarticle/p/show?id=2309405360003355115632
weibo.com/ttarticle/p/show?comment=1&id=2309405360003405185145
weibo.com/ttarticle/p/show?id=2309405360003405185145
weibo.com/ttarticle/p/show?comment=1&id=2309405360003355115632
weibo.com/ttarticle/p/show?id=2309405360003497722031
weibo.com/ttarticle/p/show?comment=1&id=2309405360003497722031
weibo.com/ttarticle/p/show?id=2309405360003661037648
weibo.com/ttarticle/p/show?comment=1&id=2309405360003661037648
weibo.com/ttarticle/p/show?id=2309405360003711631487
weibo.com/ttarticle/p/show?comment=1&id=2309405360003711631487
weibo.com/ttarticle/p/show?id=2309405360003740729424
weibo.com/ttarticle/p/show?comment=1&id=2309405360003740729424
weibo.com/ttarticle/p/show?id=2309405360003904307488
weibo.com/ttarticle/p/show?comment=1&id=2309405360003904307488
weibo.com/ttarticle/p/show?id=2309405360003950444679
weibo.com/ttarticle/p/show?id=2309405360003984261353
weibo.com/ttarticle/p/show?comment=1&id=2309405360003950444679
weibo.com/ttarticle/p/show?comment=1&id=2309405360003984261353
weibo.com/ttarticle/p/show?id=2309405360004017553495
weibo.com/ttarticle/p/show?comment=1&id=2309405360004017553495
weibo.com/ttarticle/p/show?id=2309405360004135256202
weibo.com/ttarticle/p/show?comment=1&id=2309405360004105896116
weibo.com/ttarticle/p/show?id=2309405360004105896116
weibo.com/ttarticle/p/show?comment=1&id=2309405360004135256202
weibo.com/ttarticle/p/show?id=2309405360004168810498
weibo.com/ttarticle/p/show?comment=1&id=2309405360004168810498
weibo.com/ttarticle/p/show?id=2309405360004197908486
weibo.com/ttarticle/p/show?comment=1&id=2309405360004197908486
weibo.com/ttarticle/p/show?id=2309405360004252434456
weibo.com/ttarticle/p/show?comment=1&id=2309405360004252434456
weibo.com/ttarticle/p/show?comment=1&id=2309405360004282056759
weibo.com/ttarticle/p/show?comment=1&id=2309405360004311154749
weibo.com/ttarticle/p/show?id=2309405360004282056759
weibo.com/ttarticle/p/show?id=2309405360004311154749
weibo.com/ttarticle/p/show?id=2309405360004340777108
weibo.com/ttarticle/p/show?comment=1&id=2309405360004340777108
weibo.com/ttarticle/p/show?comment=1&id=2309405360004416274463
weibo.com/ttarticle/p/show?comment=1&id=2309405360004445634703
weibo.com/ttarticle/p/show?id=2309405360004416274463
weibo.com/ttarticle/p/show?id=2309405360004474994891
weibo.com/ttarticle/p/show?id=2309405360004504093039
weibo.com/ttarticle/p/show?comment=1&id=2309405360004474994891
weibo.com/ttarticle/p/show?id=2309405360004445634703
weibo.com/ttarticle/p/show?comment=1&id=2309405360004504093039
weibo.com/ttarticle/p/show?id=2309405360004558618716
weibo.com/ttarticle/p/show?comment=1&id=2309405360004558618716
weibo.com/ttarticle/p/show?id=2309405360004588240974
weibo.com/ttarticle/p/show?comment=1&id=2309405360004588240974
weibo.com/ttarticle/p/show?id=2309405360004617601093
weibo.com/ttarticle/p/show?comment=1&id=2309405360004646699234
weibo.com/ttarticle/p/show?comment=1&id=2309405360004617601093
weibo.com/ttarticle/p/show?id=2309405360004646699234
weibo.com/ttarticle/p/show?id=2309405360004781178888
weibo.com/ttarticle/p/show?comment=1&id=2309405360004781178888
weibo.com/ttarticle/p/show?comment=1&id=2309405360004810539055
weibo.com/ttarticle/p/show?id=2309405360004810539055
weibo.com/ttarticle/p/show?comment=1&id=2309405360004839637152
weibo.com/ttarticle/p/show?comment=1&id=2309405360004873453649
weibo.com/ttarticle/p/show?id=2309405360004839637152
weibo.com/ttarticle/p/show?id=2309405360004873453649
weibo.com/ttarticle/p/show?id=2309405360005175181396
weibo.com/ttarticle/p/show?comment=1&id=2309405360005175181396
weibo.com/ttarticle/p/show?id=2309405360005204541717
weibo.com/ttarticle/p/show?comment=1&id=2309405360005204541717
weibo.com/ttarticle/p/show?id=2309405360005238095899
weibo.com/ttarticle/p/show?comment=1&id=2309405360005238095899
weibo.com/ttarticle/p/show?id=2309405360005267456033
weibo.com/ttarticle/p/show?comment=1&id=2309405360005267456033
weibo.com/ttarticle/p/show?id=2309405360005326176388
weibo.com/ttarticle/p/show?comment=1&id=2309405360005326176388
weibo.com/ttarticle/p/show?id=2309405360005355798671
weibo.com/ttarticle/p/show?comment=1&id=2309405360005355798671
weibo.com/ttarticle/p/show?comment=1&id=2309405360005418450965
weibo.com/ttarticle/p/show?id=2309405360005418450965
weibo.com/ttarticle/p/show?comment=1&id=2309405360005384896739
weibo.com/ttarticle/p/show?id=2309405360005384896739
weibo.com/ttarticle/p/show?id=2309405360005498404996
weibo.com/ttarticle/p/show?comment=1&id=2309405360005498404996
weibo.com/ttarticle/p/show?id=2309405360005527765236
weibo.com/ttarticle/p/show?comment=1&id=2309405360005527765236
weibo.com/ttarticle/p/show?id=2309405360005557125255
weibo.com/ttarticle/p/show?comment=1&id=2309405360005557125255
weibo.com/ttarticle/p/show?id=2309405360005586223440
weibo.com/ttarticle/p/show?comment=1&id=2309405360005586223440
weibo.com/ttarticle/p/show?id=2309405360005753995556
weibo.com/ttarticle/p/show?comment=1&id=2309405360005783355584
weibo.com/ttarticle/p/show?id=2309405360005783355584
weibo.com/ttarticle/p/show?id=2309405360005812977873
weibo.com/ttarticle/p/show?comment=1&id=2309405360005812977873
weibo.com/ttarticle/p/show?comment=1&id=2309405360005753995556