Shulou(Shulou.com)06/01 Report--

This article mainly explains "how to change the jdk version of centos7". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to change the jdk version of centos7.

Original jdk7 location: / usr/java/jdk1.7.0_80 New jdk8 location: / usr/java/jdk1.8.0_212

[root@localhost] which java/usr/bin/java [root@localhost ~] rm-f / usr/bin/java & & ln-s / usr/java/jdk1.8.0_212/bin/java / usr/bin/java [root@localhost ~]

Change the environment variable from the path that JAVA_HOME points to 1.7 to 1.8

[root@localhost ~] vi / etc/profile#export JAVA_HOME=/usr/java/jdk1.7.0_80export JAVA_HOME=/usr/java/jdk1.8.0_212export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin

Make the environment variable effective

[root@localhost ~] source / etc/profile

Then check the current java version

[root@localhost] java-versionjava version "1.8.0m212" Java (TM) SE Runtime Environment (build 1.8.0_212-b10) Java HotSpot (TM) 64-Bit Server VM (build 25.212-b10, mixed mode) [root@localhost] so far, I believe you have a deeper understanding of "how to change the jdk version of centos7". You might as well do it in practice! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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