How docker configures jdk environment variables

The method to configure environment variables is as follows:

First, edit the .bashrc file

vim ~/.bashrc

Then, add the following configuration at the end of the file ：

export JAVA_HOME=/opt/jdk
export PATH=$PATH:$JAVA_HOME

Finally, you need to use the source command to make the environment variables take effect.

source ~/.bashrc

Recommended tutorial: docker tutorial

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