centos7 卸载jdk1.7 并用yum安装jdk1.8
1.首先要分别检查包含jdk、java、gcj字样的包,然后删除掉;
[root@localhost java]# rpm -qa | grep jdk
java-1.8.0-openjdk-headless-1.8.0.275.b01-0.el7_9.x86_64
java-1.8.0-openjdk-1.8.0.275.b01-0.el7_9.x86_64
copy-jdk-configs-3.3-10.el7_5.noarch
[root@localhost java]# rpm -qa | grep java | xargs rpm -e –nodeps
[root@loc ...