我遇到的：
????????sudo yum install java-1.8.0-openjdk-devel.x86_64
缺少这个包安装即可使用jps
rpm安装jdk依赖及jdk包
? ? ? ? 地址：链接：https://pan.baidu.com/s/1jKAZP5pH70va-JrzF8r2YQ?
????????提取码：qgnd?
????????rpm -ivh tzdata-java-2018e-3.el7.noarch.rpm
????????rpm -ivh python-lxml-3.2.1-4.el7.x86_64.rpm
????????rpm -ivh python-javapackages-3.4.1-11.el7.noarch.rpm
????????rpm -ivh lksctp-tools-1.0.17-2.el7.x86_64.rpm
????????rpm -ivh javapackages-tools-3.4.1-11.el7.noarch.rpm
????????rpm -ivh copy-jdk-configs-3.3-10.el7_5.noarch.rpm
????????rpm -ivh ttmkfdir-3.0.9-42.el7.x86_64.rpm
????????rpm -ivh xorg-x11-fonts-Type1-7.5-9.el7.noarch.rpm
????????rpm -ivh java-1.8.0-openjdk-headless-1.8.0.181-7.b13.el7.x86_64.rpm
????????rpm -ivh java-1.8.0-openjdk-1.8.0.181-7.b13.el7.x86_64.rpm
????????rpm -ivh java-1.8.0-openjdk-devel-1.8.0.181-7.b13.el7.x86_64.rpm
