Linux安装JDK详细步骤

linux安装jdk详细步骤:\

1.上官网下载jdk压缩包

网址：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

利用lRZ工具上传到服务器

3.解压 jdk-8u171-linux-x64.tar.gz 安装包

4.配置环境变量 vim /etc/profile

export JAVA_HOME=/usr/local/java/jdk1.8.0_171 
export JRE_HOME=${JAVA_HOME}/jre  
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  
export  PATH=${JAVA_HOME}/bin:$PATH

 5.执行profile文件 source /etc/profile

使配置文件生效

6.检查新安装的jdk java -version

结果如下

java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

tar -zxvf jdk-8u171-linux-x64.tar.gz -C /usr/local/java