ubuntu上安裝jdk

時間 2019-11-19

標籤 ubuntu 安裝 jdk 欄目 Ubuntu 简体版

原文原文鏈接

1. Download the following file:

http://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-i586.tar.gz (32-bit)

http://download.oracle.com/otn-pub/java/jdk/7u1-b08/jdk-7u1-linux-x64.tar.gz (64-bit) 2. Decompress the .tar.gz file. 3. Move the JDK files to /usr/lib/jvm/jdk1.7.0 or elsewhere you like. 4. $sudo gvim /etc/environment You will see PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" Change the file as (change the installation path if needed) PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/jvm/jdk1.7.0/bin" CLASSPATH=.:/usr/lib/jvm/jdk1.7.0/lib JAVA_HOME=/usr/lib/jvm/jdk1.7.0 PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/jvm/jdk1.7.0/bin" CLASSPATH=.:/usr/lib/jvm/jdk1.7.0/lib JAVA_HOME=/usr/lib/jvm/jdk1.7.0 And then reload .bashrc file: source ~/.bashrc 5. Run the following commands: $sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0/bin/java 300 $sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.7.0/bin/javac 300 $sudo update-alternatives --install /usr/bin/javap javap /usr/lib/jvm/jdk1.7.0/bin/javap 300 $sudo update-alternatives --install /usr/bin/javadoc javadoc /usr/lib/jvm/jdk1.7.0/bin/javadoc 300 Installation has now done. Run $java -version for a test.