1.安装SunJDK:
sudo apt-get install sun-java6-jdk
sudo mv Download/jdk-6u26-linux-x64.bin /opt
sudo chmod +x jdk-6u26-linux-x64.bin
sudo sh jdk-6u26-linux-x64.bin
sudo ./jdk-6u26-linux-x64.bin
2.设置JAVA_HOME:
sudo gedit /etc/profile
export JAVA_HOME=/opt/jdk1.6.0_26
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib
基于安全考虑,只针对当前用户设置环境变量: $ gedit .bashrc
3.设置默认jdk:
sudo update-alternatives --install /usr/bin/java java /home/liulijun/share_work/Git/jdk1.6.0_41/bin/java 300
sudo update-alternatives --install /usr/bin/javac javac /home/liulijun/share_work/Git/jdk1.6.0_41/bin/javac 300
sudo update-alternatives --list java
sudo update-alternatives --config java
java -version