CentOS 7.7兩種方式安裝配置JDK 11 LTS

一、下載JDK 11 LTShttps://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.htmlhtml

二、安裝JDK 11 TLSjava

# rpm -ivh jdk-11.0.6_linux-x64_bin.rpmlinux

# java -versionvim

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oracle

# tar -xf jdk-11.0.6_linux-x64_bin.tar.gz -C /usr/localide

# cd /usr/localspa

# mv jdk-11.0.6/ jdkhtm

配置JDK環境變量:blog

# vim /etc/profile.d/jdk11.shit

export JAVA_HOME=/usr/local/jdk

export JRE_HOME=$JAVA_HOME

export CLASSPATH=.:$JAVA_HOME/lib

export PATH=$JAVA_HOME/bin:$PATH

# . /etc/profile.d/jdk11.sh

# java -version

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三、多個JDK版本中選擇JDK 11 LTS做爲默認版本:

# alternatives --config java

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備註:默認只有以前使用rpm包安裝的JDK 8

# alternatives --install /usr/bin/java java /usr/local/jdk/bin/java 1

備註:alternatives [options] --install link name path priority

# alternatives --config java

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