`在这里插入vim /etc/profile
在末尾追加export JAVA_HOME=/usr/local/java/jdk1.8.0_291
export JRE_HOME=/usr/local/java/jdk1.8.0_291/jre
export CLASSPATH=.:
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JAVA_HOME/lib/dt.jar:
JAVAHOME/lib/dt.jar:JAVA_HOME/lib/tools.jar:
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JRE_HOME/lib:
JREHOME/lib:CLASSPATH
export PATH=
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JAVA_HOME/bin:
JAVAHOME/bin:PATH
source /etc/profile
export MAVEN_HOME=/www/server/apache-maven-3.6.0
export PATH=
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PATH:
PATH:MAVEN_HOME/bin
export JAVA_HOME=/www/server/jdk1.8.0_291
export JRE_HOME=/www/server/jdk1.8.0_291/jre
export CLASSPATH=.:
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JAVA_HOME/lib/dt.jar:
JAVAHOME/lib/dt.jar:JAVA_HOME/lib/tools.jar:
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JRE_HOME/lib:
JREHOME/lib:CLASSPATH
export PATH=
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JAVA_HOME/bin:
JAVAHOME/bin:PATH代码片`
