[root@node226 test]# jar tvf xdatashare.jar | grep dom4j-2.1.3.jar
323630 Sun Apr 12 12:05:40 CST 2020 BOOT-INF/lib/dom4j-2.1.3.jar

[root@node226 test]# jar xvf   xdatashare.jar  BOOT-INF/lib/dom4j-2.1.3.jar
 inflated: BOOT-INF/lib/dom4j-2.1.3.jar
[root@node226 test]# ls
BOOT-INF  xdatashare.jar

[root@node226 test]# jar uvf xdatashare.jar  BOOT-INF/lib/dom4j-2.1.3.jar
adding: BOOT-INF/lib/dom4j-2.1.3.jar(in = 323630) (out= 305017)(deflated 5%)