标签:mode ora processor 行编辑 NPU ase 环境变量 var key
去oracle官网下载jdk https://www.oracle.com/technetwork/cn/java/javase/downloads/jdk8-downloads-2133151-zhs.html
我使用的是 jdk-8u201-linux-x64.tar.gz
我解压到了/opt/software目录
[root@localhost package]# tar -zxvf jdk-8u201-linux-x64.tar.gz -C /opt/software/
/etc/profile文件的改变会涉及到系统的环境,我们要将jdk配置到/etc/profile,才可以在任何一个目录访问jdk
编辑文件
[root@localhost jdk1.8.0_201]# vim /etc/profile
按Shift+G到文件末尾,按o向下一行编辑,粘贴下面内容。
export JAVA_HOME=/opt/software/jdk1.8.0_201 #jdk安装目录
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export PATH=$PATH:${JAVA_PATH}
wq保存退出。
编辑后生效
[root@localhost jdk1.8.0_201]# source /etc/profile
输入javac 或者 java -version
[root@localhost jdk1.8.0_201]# javac
Usage: javac <options> <source files>
where possible options include:
-g Generate all debugging info
-g:none Generate no debugging info
-g:{lines,vars,source} Generate only some debugging info
-nowarn Generate no warnings
-verbose Output messages about what the compiler is doing
-deprecation Output source locations where deprecated APIs are used
-classpath <path> Specify where to find user class files and annotation processors
-cp <path> Specify where to find user class files and annotation processors
-sourcepath <path> Specify where to find input source files
-bootclasspath <path> Override location of bootstrap class files
-extdirs <dirs> Override location of installed extensions
-endorseddirs <dirs> Override location of endorsed standards path
-proc:{none,only} Control whether annotation processing and/or compilation is done.
-processor <class1>[,<class2>,<class3>...] Names of the annotation processors to run; bypasses default discovery process
-processorpath <path> Specify where to find annotation processors
-parameters Generate metadata for reflection on method parameters
-d <directory> Specify where to place generated class files
-s <directory> Specify where to place generated source files
-h <directory> Specify where to place generated native header files
-implicit:{none,class} Specify whether or not to generate class files for implicitly referenced files
-encoding <encoding> Specify character encoding used by source files
-source <release> Provide source compatibility with specified release
-target <release> Generate class files for specific VM version
-profile <profile> Check that API used is available in the specified profile
-version Version information
-help Print a synopsis of standard options
-Akey[=value] Options to pass to annotation processors
-X Print a synopsis of nonstandard options
-J<flag> Pass <flag> directly to the runtime system
-Werror Terminate compilation if warnings occur
@<filename> Read options and filenames from file
[root@localhost jdk1.8.0_201]# java -version
java version "1.8.0_201"
Java(TM) SE Runtime Environment (build 1.8.0_201-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode)
标签:mode ora processor 行编辑 NPU ase 环境变量 var key
原文地址:https://www.cnblogs.com/AganRun/p/12080701.html