centos 6.5安装JDK1.8 发表于 2018-05-31 | 分类于 java 下载安装包jdk-8u161-linux-x64.tar.gz 解压安装包tar xvf jdk-8u161-linux-x64.tar.gz 拷贝安装包到/usr/local 目录mv jdk1.8.0_161 /usr/local/ 设置/etc/profile环境变量12345678export GREP_OPTIONS=--color=autoexport JAVA_HOME=/usr/local/jdk1.8.0_161export PATH=$JAVA_HOME/bin:$PATHexport CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar source /etc/profile 生效