-
检查是否有openjdk 先卸载
rpm -qa|grep java
rpm -e - ... -
环境变量配置
vim /etc/profile
# java jdk 1.8 环境变量配置
export JAVA_HOME=/usr/local/java/jdk/jdk1.8.0_201
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export PATH=$PATH:${JAVA_PATH}
#然后保存退出,使环境变量生效
source /etc/profile








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