ubuntu下jdk安装配置

2/11/2016来源:PHP技巧人气:2514

  • 下载jdk-8u71-linux-x64.tar.gz

  • 创建jvm文件夹(/usr/lib/jvm)

sudo mkdir /usr/lib/jvm
  • 创建jvm文件夹(/usr/lib/jvm)

sudo tar zxvf jdk-8u71-linux-x64.tar.gz  -C /usr/lib/jvm
  • 设置环境变量(全局)

sudo gedit  /etc/PRofile

打开profile文件输入

    export java_HOME=/usr/lib/jvm/jdk1.8.0_71 
    export CLASSPATH=".:$JAVA_HOME/lib:$CLASSPATH"  
    export PATH="$JAVA_HOME/bin:$PATH"  
  • 设置系统默认JDK

    sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.8.0_71/bin/java 300  
    sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.8.0_71/bin/javac 300  
    sudo update-alternatives --config java  
  • 验证JDK

java -version