- 输入
yum list installed |grep java
,可以查看CentOS自带的Java环境
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-
安装jdk
2.png
-
如果是自带的jdk1.8,需要
yum install java-devel
3.png
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- 输入
export JAVA_HOME=/usr/lib/jvm/java-1.8.0
export JRE_HOME=$JAVA_HOME/jre
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
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- 输入
source /etc/profile
,使配置立即生效
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