jdk多版本部署

下载地址： https://github.com/wkgcass/jdkman/releases/

mv jdkman-macos-x86_64 jdkman
chmod +x jdkman
# ~/.bashrc or ~/.bash_profile or ~/.zshrc
## add jdkman to your PATH environment variable.#添加以下两行即可
export PATH="$PATH:/opt/jdkman"
eval "`jdkman init sh`"
source ~/.bashrc
jdkman add /opt/jdk21/jdk-21.0.2+13/  #增加环境变量
jdkman list
java -version
jdkman help
jdkman default a8479096-72ba-4ed1-9d2f-eba985a53a4d 可设置默认版本