java多版本管理

一 java 多版本管理

使用 jenv, 地址：https://github.com/jenv/jenv
mac 操作

 brew install jenv# Shell: zsh
echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.zshrc
echo 'eval "$(jenv init -)"' >> ~/.zshrc
source ~/.zshrc

需要把JAVA_HOME 注释，搜索

grep -E 'JAVA_HOME|PATH' ~/.bash_profile ~/.profile ~/.bashrc ~/.zshrc

jenv 检测

jenv doctor

检测之前是否安装java

/usr/libexec/java_home -V如果有会出现
Matching Java Virtual Machines (4):20.0.1 (arm64) "Oracle Corporation" - "Java SE 20.0.1" /Library/Java/JavaVirtualMachines/jdk-20.jdk/Contents/Home17.0.8 (arm64) "Amazon.com Inc." - "Amazon Corretto 17" /Users/admin/Library/Java/JavaVirtualMachines/corretto-17.0.8.1/Contents/Home11.0.20 (arm64) "Amazon.com Inc." - "Amazon Corretto 11" /Users/admin/Library/Java/JavaVirtualMachines/corretto-11.0.20.1/Contents/Home1.8.0_382 (arm64) "Amazon" - "Amazon Corretto 8" /Users/admin/Library/Java/JavaVirtualMachines/corretto-1.8.0_382/Contents/Home

使用 jenv add 添加java 版本
例如:

 jenv add /Library/Java/JavaVirtualMachines/jdk-20.jdk/Contents/Homejenv add /Users/admin/Library/Java/JavaVirtualMachines/corretto-17.0.8.1/Contents/Ho

检查

  jenv doctorjenv versionsjenv which java

设置全局版本:

jenv global 1.8 #   system 这个就是使用全局的

当前目录使用该版本jenv local 命令在当前目录中创建了一个 .java-version 文件

jenv local 1.8

Maven 安装

地址: https://maven.apache.org/install.html

解压，然后复制到 
sudo mv apache-maven-3.9.8 /usr/local/
然后vim ~/.zshrc
export M2_HOME=/usr/local/apache-maven-3.9.8
export PATH=$PATH:$M2_HOME/bin最后 source ~/.zshrc

阿里镜像

找到 /usr/local/apache-maven-3.9.8/conf/settings.xml

修改部分

<mirrors><mirror><id>aliyunmaven</id><mirrorOf>*</mirrorOf><name>阿里云公共仓库</name><url>https://maven.aliyun.com/repository/public</url></mirror>
</mirrors>