苹果系统macos自由切换java version

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苹果系统macos自由切换java version

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如何查看macos上已安装的java版本

1. /usr/libexec/java_home -V

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output

1. Matching Java Virtual Machines (2):
   
2.     15, x86_64:        "Java SE 15"        /Library/Java/JavaVirtualMachines/jdk-15.jdk/Contents/Home
   
3.     1.8.0_261, x86_64:        "Java SE 8"        /Library/Java/JavaVirtualMachines/jdk1.8.0_261.jdk/Contents/Home
   
4. 
   
5. /Library/Java/JavaVirtualMachines/jdk-15.jdk/Contents/Home

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按你有的版本添加.

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切换java 8运行

1. $ j8
   
2. java version "1.8.0_102"
   
3. Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
   
4. Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)

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enjoy!

Sunny

M1 macos brew安装java11

1. brew install openjdk@11

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如果报错:

1. 
   
2. 
   
3. You should change the ownership of these directories to your user.
   
4.   sudo chown -R $(whoami) /usr/local/share/man/man8
   
5. 
   
6. And make sure that your user has write permission.
   
7.   chmod u+w /usr/local/share/man/man8
   
8. 
   

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按照提示输入两个命令修改,其中$(whoami)改成自己的用户名再输入命令:

1. sudo ln -sfn /usr/local/opt/openjdk@11/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-11.jdk

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