> For the complete documentation index, see [llms.txt](https://jun-wang.gitbook.io/learnjava/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jun-wang.gitbook.io/learnjava/kai-fa/huan-jing-da-jian/linux-qie-huan-jdk-ban-ben.md).

# Linux切换JDK版本

vim \~/.bash\_profile

```
# 设置 JDK 7
export JAVA_7_HOME=`/usr/libexec/java_home -v 1.7`
# 设置 JDK 8
export JAVA_8_HOME=`/usr/libexec/java_home -v 1.8`

#默认JDK7
export JAVA_HOME=$JAVA_7_HOME

#alias命令动态切换JDK版本
alias jdk7="export JAVA_HOME=$JAVA_7_HOME"
alias jdk8="export JAVA_HOME=$JAVA_8_HOME"
```