How to configure java environment variables under macos system

The specific configuration steps are as follows:

1. Edit bash_profile

vim ~/.bash_profile
输入以下内容并保存

export JAVA_HOME=`/usr/libexec/java_home`
export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME 
export PATH=$PATH:$JAVA_HOME/bin:$JAVA_HOME/jre/bin

2. Make the environment variables effective

source ~/.bash_profile

3. Verify

tianshl@tianshl ~ $ echo $PATH

4. Note

Before using fish, you must exit fish

/usr/libexec/java_home This command can output the path of JAVA_HOME

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