删除JAVA: # rpm -qa | grep gcj libgcj-4.4.7-4.el6.x86_64 java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64 # rpm
删除JAVA:
# rpm -qa | grep gcj
libgcj-4.4.7-4.el6.x86_64
java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64
# rpm -e --nodeps java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64
# rpm -qa | grep jdk
java-1.7.0-openjdk-1.7.0.99-2.6.5.1.el6.x86_64
java-1.6.0-openjdk-1.6.0.38-1.13.10.4.el6.x86_64
# rpm -e --nodeps java-1.6.0-openjdk-1.6.0.38-1.13.10.4.el6.x86_64
# rpm -e --nodeps java-1.7.0-openjdk-1.7.0.99-2.6.5.1.el6.x86_64
安装Java:
# cd /opt
# tar -xzvf jdk-8u77-linux-x64.tar.gz
# vim /etc/profile
在profile最后行添加：
export JAVA_HOME=/opt/jdk1.8.0_77
export PATH=$PATH:$JAVA_HOME/bin
//修改配置文件生效
# source /etc/profile
# java -version
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)
