linux下dk环境变量配置,linux下jdk环境变量配置
当前版本下载地址
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
解压jdk软件包
[[email protected] java]# pwd
/usr/local/java
[[email protected] java]# ls
jdk-8u191-linux-x64.tar.gz
[[email protected] java]# tar zxvf jdk-8u191-linux-x64.tar.gz
[[email protected] java]# ls
jdk1.8.0_191 jdk-8u191-linux-x64.tar.gz
配置jdk环境变量
[[email protected] java]# cd jdk1.8.0_191/
[[email protected] jdk1.8.0_191]# pwd
/usr/local/java/jdk1.8.0_191
[[email protected] jdk1.8.0_191]# vim /etc/profile
在文件末尾添加下面内容
JAVA_HOME=/usr/local/java/jdk1.8.0_191
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
PATH=$JAVA_HOME/bin:$PATH
export JAVA_HOME CLASSPATH PATH
立即生效
[[email protected] jdk1.8.0_191]# source /etc/profile
查看效果
[[email protected] jdk1.8.0_191]# java
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
where options include:
-d32 use a 32-bit data model if available
-d64 use a 64-bit data model if available
-server to select the "server" VM
The default VM is server,
because you are running on a server-class machine.
-cp
-classpath
A : separated list of directories, JAR archives,
and ZIP archives to search for class files.
-D=
set a system property
-verbose:[class|gc|jni]
enable verbose output
-version print product version and exit
-version:
Warning: this feature is deprecated and will be removed
in a future release.
require the specified version to run
-showversion print product version and continue
-jre-restrict-search | -no-jre-restrict-search
Warning: this feature is deprecated and will be removed
in a future release.
include/exclude user private JREs in the version search
-? -help print this help message
-X print help on non-standard options
-ea[:...|:]
-enableassertions[:...|:]
enable assertions with specified granularity
-da[:...|:]
-disableassertions[:...|:]
disable assertions with specified granularity
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions
-agentlib:[=]
load native agent library , e.g. -agentlib:hprof
see also, -agentlib:jdwp=help and -agentlib:hprof=help
-agentpath:[=]
load native agent library by full pathname
-javaagent:[=]
load Java programming language agent, see java.lang.instrument
-splash:
show splash screen with specified image
See http://www.oracle.com/technetwork/java/javase/documentation/index.html for more details.
linux下配置jdk环境变量完成。
最后编辑：2018-11-06作者：劳福喜
这个作者貌似有点懒，什么都没有留下。