java sdk安装

java sdk下载

引用参考

http://www.jb51.net/article/108131.htm

http://blog.csdn.net/ccfxue/article/details/53822740

http://blog.csdn.net/netmicrobe/article/details/50440830

安装

alternatives --install /usr/bin/java java /usr/local/lib/jdk1.8.0_151/bin/java 180151

alternatives --install /usr/bin/javac javac /usr/local/lib/jdk1.8.0_151/bin/javac 180151

切换配置

alternatives --config java

alternatives --install /usr/bin/java java /jdk1.8.0_151/bin/java 180151

alternatives --install /usr/bin/java javac /jdk1.8.0_151/bin/javac 180151

JAVA_HOME=/usr/local/lib/jdk1.8.0_151

CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

PATH=$JAVA_HOME/bin:$MAVEN_HOME/bin:$PATH

export JAVA_HOME CALSS_PATH MAVEN_HOME PATH