为什么我卸载的 jdk 版本仍然显示在 java -version 中？

Question

In my project which need jdk 1.8, but there is default openjdk 17 in my mac. So I remove it from Library/Java/JavaVirtualMachines . But when I run java -version it still shows my default jdk version is openjdk 17. And when I run /usr/libexec/java_home it shows /Users/lidu/Library/Java/JavaVirtualMachines/openjdk-17/Contents/Home . But I am sure that there isn't a directory called openjdk-17 in the path /Users/lidu/Library/Java/JavaVirtualMachines/ .

And when I run export JAVA_HOME=$(/usr/libexec/java_home -v "1.8.0_331") it can be changed to jdk 1.8 but in the next time when I create a new terminal, it still shows the default jdk version is open jdk 17.

Answer 1

export will only persist in the terminal, if you run it manually.

Add the export JAVA_HOME command in .profile file at home directory, so that it will persist in every newly created terminal.