Shulou(Shulou.com)06/02 Report--

Today, I will talk to you about how to configure JAVA_HOME in Centos7. Many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

A locate the JDK installation path

1. Terminal input:

Which java

The output is:

/ usr/bin/java

two。 Terminal input:

Ls-lr / usr/bin/java

The output is:

/ usr/bin/java->

3. Terminal input

Ls-lrt / etc/alternatives/java

Output:

/ etc/alternatives/java-> / usr/lib/jvm/java-1.8.0-openjdk-1.8.0.181-3.b13.el7_5.x86_64/jre/bin/java

So far, we have determined that the installation directory of java is: / usr/lib/jvm/java-1.8.0-openjdk-1.8.0.181-3.b13.el7_5.x86_64

B configure JAVA_HOME

1. Open the file that configures the environment variable

Vi / etc/profile

two。 Add the following configuration:

Export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.181-3.b13.el7_5.x86_64export JRE_HOME=$JAVA_HOME/jreexport CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATHexport PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

: wq save exit.

3. Let the configuration take effect

Source / etc/profile

4. Test configuration results

Echo $JAVA_HOME after reading the above, do you have any further understanding of how to configure JAVA_HOME in Centos7? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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