CentOS 6.5 下安裝 Sun JDK 1.7

• 下載

http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

得到 jdk-7u51-linux-x64.tar.gz

• 安裝

  cd /opt
  cp /tmp/soft/jdk-7u51-linux-x64.tar.gz .
  tar -xzvf jdk-7u51-linux-x64.tar.gz
  ln -s /opt/jdk1.7.0_51/bin/java /sbin/java

  
  

• 設置環境變量
  

  echo "export JAVA_HOME=/opt/jdk1.7.0_51" > /etc/profile.d/java_env.sh  && echo "export JRE_HOME=/opt/jdk1.7.0_51/jre" >> /etc/profile.d/java_env.sh && echo "export CLASSPATH=.:\$JAVA_HOME/lib:\$JRE_HOME/lib:\$CLASSPATH" >> /etc/profile.d/java_env.sh && echo "export PATH=.:\$JAVA_HOME/bin:\$JRE_HOME/bin:\$PATH" >> /etc/profile.d/java_env.sh
  chmod +x /etc/profile.d/java_env.sh

  
  

• Verify

  source /etc/profile.d/java_env.sh
  java -version
  java version "1.7.0_51"
  Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
  Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)