1、root賬戶登入CentOS系統
2、查看系統已安裝的jdk
[root@localhost ~]# rpm -qa|grep jdk
jdk-1.6.0_38-fcs3、卸載jdk [root@localhost ~]#rpm -e --nodeps jdk-1.6.0_22-fcs 參數選型: -e, --erase=<package>+ erase (uninstall) package
--nodeps do not verify package dependencies卸載完成後,再次卸載提示jdk已被刪除,會報如下錯誤: error: package jdk-1.6.0_38-fcs is not installed4、卸載與java相關檔案a、查看與java相關的安裝內容 [root@localhost ~]# rpm -qa|grep java sun-javadb-common-10.6.2-1.1
sun-javadb-docs-10.6.2-1.1
sun-javadb-core-10.6.2-1.1
sun-javadb-demo-10.6.2-1.1
sun-javadb-javadoc-10.6.2-1.1
sun-javadb-client-10.6.2-1.1
b、可一個個卸載 [root@localhost java2]# rpm -e --nodeps sun-javadb-common-10.6.2-1.1
若一次下載多個,在各個卸載包之間用空格分開 [root@localhost java2]# rpm -e --nodeps sun-javadb-common-10.6.2-1.1 sun-javadb-docs-10.6.2-1.1 sun-javadb-core-10.6.2-1.1 ... 文章參考:http://sunqiusong.email.blog.163.com/blog/static/8838328201010592015500/