如何在MACOS上将Java从9降级到8。 Eclipse没有运行Java 9 [英] How to downgrade Java from 9 to 8 on a MACOS. Eclipse is not running with Java 9

问题描述

如何在macOS Sierra 10.12.6（16G29）上将Java从9降级到8。我尝试删除Java插件并安装了Java 8，但Java和javac版本在终端中显示9，但在系统首选项中它是8.提前感谢！

How to downgrade Java from 9 to 8 on a macOS Sierra 10.12.6(16G29) . I tried removing the Java plugin and installed Java 8, however the Java and javac version shows 9 in terminal, but In system preferences it is 8. Thanks in advance!

推荐答案

你不需要降级。您可以在MacOS上运行多个版本的Java。您可以在MacOS中使用此命令设置终端的版本。

You don't need to down grade. You can run more than one version of Java on MacOS. You can set the version of your terminal with this command in MacOS.

# List Java versions installed
/usr/libexec/java_home -V

# Java 11
export JAVA_HOME=$(/usr/libexec/java_home -v 11)

# Java 1.8
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)

# Java 1.7
export JAVA_HOME=$(/usr/libexec/java_home -v 1.7)

# Java 1.6
export JAVA_HOME=$(/usr/libexec/java_home -v 1.6)

您可以在.bashrc，.profile或.zprofile中设置默认值

You can set the default value in the .bashrc, .profile, or .zprofile

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